Responsive Website Design

Thursday, 21 May 2015

Responsive Website Template Design

Create index.html

<!DOCTYPE>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
<link rel="stylesheet" href="style.css" type="text/css">

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap-theme.min.css">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/js/bootstrap.min.js"></script>
<style>
.navbar-default {
 background-image: linear-gradient(to bottom, #4699ef 0px, #4699ef 100%);
 background-repeat: repeat-x;
 border-radius: 0px;
 border-color:none;
 box-shadow: 0 1px 0 rgba(255, 255, 255, 0.15) inset, 0 1px 5px rgba(0, 0, 0, 0.075);
}
.navbar-default .navbar-nav > li > a {
 color: #fff;
}
.navbar {
 border:none;
 margin-bottom: 20px;
 min-height: 50px;
 position: relative;
}
.equal, .equal > div[class*='col-'] {
 display: -webkit-box;
 display: -moz-box;
 display: -ms-flexbox;
 display: -webkit-flex;
 display: flex;
 flex:1 1 auto;
}
.carousel-inner > .item > img,  .carousel-inner > .item > a > img {
 width: 100%;
 margin: auto;
 height:254px;
}
</style>
</head>
<body>
<div class="main-wrapper">
  <div class="header">
    <div class="logo">
      <p style="color:#66CC00;font-family:Algerian;font-size: 26px;text-shadow: 1px 1px 1px #fff;">CRM</p>
    </div>
    
  </div>
  
  <div class="menu">
    <div class="bs-example">
      <nav id="myNavbar" class="navbar navbar-default" role="navigation">
        
        <div class="container">
          <div class="navbar-header">
            <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"> <span class="sr-only">Toggle navigation</span> <span class="icon-bar"></span> <span class="icon-bar"></span> <span class="icon-bar"></span> </button>
            <a class="navbar-brand" href="#">© CRM</a> </div>
          
          <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
            <ul class="nav navbar-nav">
              <li><a href="#">Home</a></li>
              <li><a href="#">Profile</a></li>
              <li class="dropdown"> <a href="#" data-toggle="dropdown" class="dropdown-toggle">Messages <b class="caret"></b></a>
                <ul class="dropdown-menu">
                  <li><a href="#">Inbox</a></li>
                  <li><a href="#">Drafts</a></li>
                  <li><a href="#">Sent Items</a></li>
                  <li class="divider"></li>
                  <li><a href="#">Trash</a></li>
                </ul>
              </li>
            </ul>
            <ul class="nav navbar-nav navbar-right">
              <li class="dropdown"> <a href="#" data-toggle="dropdown" class="dropdown-toggle">Admin <b class="caret"></b></a>
                <ul class="dropdown-menu">
                  <li><a href="#">Action</a></li>
                  <li><a href="#">Another action</a></li>
                  <li class="divider"></li>
                  <li><a href="#">Settings</a></li>
                </ul>
              </li>
            </ul>
          </div>
          
        </div>
      </nav>
    </div>
  </div>
  
  <div class="banner"> <img src="http://www.curdweb.com/wp-content/uploads/2014/08/templatemo_header_1-1024x512.jpg"> </div>
  
  <div class="main-container">
    <div class="left-side">
      <div class="left-sideimag">
        
        <div id="myCarousel" class="carousel slide" data-ride="carousel">
          
          <ol class="carousel-indicators">
            <li data-target="#myCarousel" data-slide-to="0" class="active"></li>
            <li data-target="#myCarousel" data-slide-to="1"></li>
            <li data-target="#myCarousel" data-slide-to="2"></li>
            <li data-target="#myCarousel" data-slide-to="3"></li>
          </ol>
          
          <div class="carousel-inner" role="listbox">
            <div class="item active"> <img src="http://curdweb.com/navin/click.com/images/gallery1.png"> </div>
            <div class="item"> <img src="http://curdweb.com/navin/click.com/images/gallery2.png"> </div>
            <div class="item"> <img src="http://curdweb.com/navin/click.com/images/gallery3.png"> </div>
            <div class="item"> <img src="http://curdweb.com/navin/click.com/images/gallery4.png"> </div>
          </div>
          
          <a class="left carousel-control" href="#myCarousel" role="button" data-slide="prev"> <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span> <span class="sr-only">Previous</span> </a> <a class="right carousel-control" href="#myCarousel" role="button" data-slide="next"> <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span> <span class="sr-only">Next</span> </a> </div>
      </div>
      <h2>Customer relationship management</h2>
      <p>Relationship management is a customer-oriented feature with service response based on customer input, one-to-one solutions to customers’ requirements, direct online communications with customer and customer service centers that help customers solve their issues.
        Sales force automation. This function can implement sales promotion analysis, automate tracking of a client’s account history for repeated sales or future sales, and also сoordinate sales, marketing, call centers, and retail outlets in order to realize the salesforce automation.
        Use of technology. This feature is about following the technology trends and skills of value delivering using technology to make “up-to-the-second” customer data available. It applies data warehouse technology in order to aggregate transaction information, to merge the information with CRM products, and to provide KPI (key performance indicators).
        Opportunity management. This feature helps the company to manage unpredictable growth and demand and implement a good forecasting model to integrate sales history with sales projections.
        CRM in developing and maintaining client relationships.
        Increasingly CRM is expanding outside of the core sales and marketing areas and systems are available that incorporate support and finance data also into the CRM view that a user gets, enabling a wider holistic view of a customer from one screen for a user.
        Customer relationship management systems track and measure marketing campaigns over multiple networks. These systems can track customer analysis by customer clicks and sales.</p>
    </div>
    
    <div class="left-side">
      <div class="left-sideimag"> <img src="http://curdweb.com/navin/click.com/images/gallery2.png"></div>
      <h2>Impact of social networking</h2>
      <p>A huge number of people use the Internet every day, various target different browsers website (social, cultural, political and other benefits), because there is a lot of information available that is easy to access quickly as needed. The majority of users through a variety of social networking sites, such as Facebook, LinkedIn and many other sites scrolling. Since these sites to provide users with a variety of services, including interactive with friends or business community to exchange information and interests. Research Balaram presented evidence, a significant increase in the use of social networking sites, especially among young people. This causes companies to use effective means of attention these sites to sell their products, services and brands. Thus increasing demand for its products.
        Social Networks: It is an online service or online sites allow the establishment of an online community or group of people to interact and share common interests and activists. Such as Facebook, Twitter or chat rooms.
        Availability of Internet services in this era is a revolution in the world of communications, where it allows users to send and retrieve information quickly with the central availability. In addition, by using a network of Internet data / network required to retrieve or send between folds in a simple manner can navigate. In addition, through the use of social networking sites, users can communicate and get information about other users, and even information about the company. This information describes individuals or companies. Promote the exchange and sharing of benefits.Promote the exchange and sharing of benefits. </p>
    </div>
    
  </div>
  
  <div class="footer">
    <div class="footerleft">© All Right Reserve</div>
    <div class="footerright">
      <ul>
        <li><a href="#">Home</a></li>
        <li><a href="#">About</a></li>
        <li><a href="#">Services</a></li>
        <li><a href="#">Portfolio</a></li>
        <li><a href="#">Contacts</a></li>
      </ul>
    </div>
  </div>
  
</div>

</body>
</html>

Create style.css

@charset "utf-8";
body {
 background:#E7E7E7;
}
.main-wrapper {
 padding:20px;
 background:#ECECEC;
}
.header {
 padding:20px;
 background-image: linear-gradient(to bottom, #4699ef 0px, #4699ef 100%);
 background-repeat: repeat-x;
 margin:auto;
}
.logo {
 float:left;
 margin: -10px;
}
.logo p {
 color:#000000;
}
.menu {
 background-image: linear-gradient(to bottom, #4699ef 0px, #4699ef 100%);
 margin: -19px auto auto;
 padding: 1px;
}
.banner {
 padding:10px;
 background:#4699EF;
 margin:auto;
 height:300px;
 margin-bottom:1px;
}
.banner img {
 width:100%;
 height:100%;
 margin:auto;
}
.main-container {
 padding:10px;
 margin:auto;
 background: #7abcff; /* Old browsers */
 background: -moz-linear-gradient(45deg, #7abcff 0%, #60abf8 44%, #4096ee 100%); /* FF3.6+ */
 background: -webkit-gradient(linear, left bottom, right top, color-stop(0%, #7abcff), color-stop(44%, #60abf8), color-stop(100%, #4096ee)); /* Chrome,Safari4+ */
 background: -webkit-linear-gradient(45deg, #7abcff 0%, #60abf8 44%, #4096ee 100%); /* Chrome10+,Safari5.1+ */
 background: -o-linear-gradient(45deg, #7abcff 0%, #60abf8 44%, #4096ee 100%); /* Opera 11.10+ */
 background: -ms-linear-gradient(45deg, #7abcff 0%, #60abf8 44%, #4096ee 100%); /* IE10+ */
 background: linear-gradient(45deg, #7abcff 0%, #60abf8 44%, #4096ee 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#7abcff', endColorstr='#4096ee', GradientType=1 ); /* IE6-9 fallback on horizontal gradient */
 overflow:auto;
}
.left-side {
 margin: 6px;
 padding: 10px;
 width: 49%;
 float:left;
 background: #87e0fd; /* Old browsers */
 background: -moz-linear-gradient(45deg, #87e0fd 0%, #53cbf1 40%, #05abe0 100%); /* FF3.6+ */
 background: -webkit-gradient(linear, left bottom, right top, color-stop(0%, #87e0fd), color-stop(40%, #53cbf1), color-stop(100%, #05abe0)); /* Chrome,Safari4+ */
 background: -webkit-linear-gradient(45deg, #87e0fd 0%, #53cbf1 40%, #05abe0 100%); /* Chrome10+,Safari5.1+ */
 background: -o-linear-gradient(45deg, #87e0fd 0%, #53cbf1 40%, #05abe0 100%); /* Opera 11.10+ */
 background: -ms-linear-gradient(45deg, #87e0fd 0%, #53cbf1 40%, #05abe0 100%); /* IE10+ */
 background: linear-gradient(45deg, #87e0fd 0%, #53cbf1 40%, #05abe0 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#87e0fd', endColorstr='#05abe0', GradientType=1 ); /* IE6-9 fallback on horizontal gradient */
}
.left-sideimag {
 width:100%;
 height:274px;
 margin:auto;
 padding:10px;
 border:2px solid #fff;
 border-radius: 10px;
}
.left-sideimag img {
 margin:auto;
 width:100%;
 height:100%;
}
.left-side h2 {
 font-family:Algerian;
 text-align:center;
 text-decoration:underline;
 text-shadow: 1px 1px 1px #ccc;
 color:#003333;
}
.left-side p {
 color:#000000;
 text-align:justify;
 text-shadow: 1px 1px 1px #ccc;
}
.footer {
 margin:auto;
 background:#4699EF;
 padding: 42px;
 overflow: auto;
}
.footerleft {
 float:left;
}
.footerright {
 float:right;
}
.footerright ul {
 padding:0px;
 margin:0px;
}
.footerright ul li {
 display:inline;
 list-style-type:none;
}
.footerright ul li a {
 text-decoration:none;
}
/*--------------------------------------main-menu styles here--------------------------------------------*/
.navbar-default {
 background-color: #0099FF;
 border-color: #33FFFF;
}
.navbar-default {
 background-image:none;
 background-repeat: repeat-x;
 border-radius: 4px;
 box-shadow: 0 1px 0 rgba(255, 255, 255, 0.15) inset, 0 1px 5px rgba(0, 0, 0, 0.075);
 color: #fff;
}
.navbar-default .navbar-nav > li > a {
 color: #fff;
}
.navbar-default .navbar-nav > .open > a, .navbar-default .navbar-nav > .open > a:focus, .navbar-default .navbar-nav > .open > a:hover {
 background-color: #333;
 color: #fff;
}
.navbar-default .navbar-nav > .active > a, .navbar-default .navbar-nav > .open > a {
 background-image:none;
 background-repeat: repeat-x;
 box-shadow: 0 3px 9px rgba(0, 0, 0, 0.075) inset;
}
.dropdown-menu {
 background-clip: padding-box;
 background-color: #333;
 border: 1px solid rgba(0, 0, 0, 0.15);
 border-radius: 4px;
 box-shadow: 0 6px 12px rgba(0, 0, 0, 0.176);
 display: none;
 float: left;
 font-size: 14px;
 left: 0;
 list-style: outside none none;
 margin: 2px 0 0;
 min-width: 160px;
 padding: 5px 0;
 position: absolute;
 text-align: left;
 top: 100%;
 z-index: 1000;
}
.dropdown-menu > li > a {
 clear: both;
 color: #fff;
 display: block;
 font-weight: 400;
 line-height: 1.42857;
 padding: 3px 20px;
 white-space: nowrap;
}
.navbar-default .navbar-brand {
 color: #fff;
}
.bs-example {
 margin: 20px;
}

/*----------------------------------------------Resposive style code here---------------------------------------------*/

@media screen and (min-device-width: 320px) and (max-device-width: 756px) {
 .left-side {
 width: 99%;
}
}

Tuesday, 19 May 2015

lightbox jquery

Ctrate index.html

<!DOCTYPE>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>light-box</title>
<link rel="stylesheet" href="css/style.css" type="text/css" />
<script type="text/javascript" src="js/navin.js"></script>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/scriptaculous/1.8.1/scriptaculous.js"></script>
<script type="text/javascript" src="js/fancyzoom.min.js"></script>
<script type="text/javascript" charset="utf-8">
  $(document).observe('dom:loaded', function() {
   $$("div.photo a").each(function(el) { new FancyZoom(el); })
   new FancyZoom('11_link', {width:400, height:300});
   new FancyZoom('12_link');
   
  });
 </script>
<style type="text/css" media="screen">
#large_box {
 width:800;
 height:600;
}
</style>
</head>
<body>
<div class="myhead">
  <h2>Light-Box</h2>
</div>
<div id="wrapper">
  <div id="content">
    <h2>My Image Gallery</h2>
    <div id="photos">
      <h3>Images</h3>
      <div class="photo"> <a href="#1"> <img src="http://curdweb.com/navin/click.com/images/gallery1.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#2"> <img src="http://curdweb.com/navin/click.com/images/gallery2.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#3"> <img src="http://curdweb.com/navin/click.com/images/gallery3.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#4"> <img src="http://curdweb.com/navin/click.com/images/gallery4.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#5"> <img src="http://curdweb.com/navin/click.com/images/gallery5.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#6"> <img src="http://curdweb.com/navin/click.com/images/gallery6.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#7"> <img src="http://curdweb.com/navin/click.com/images/gallery7.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#8"> <img src="http://curdweb.com/navin/click.com/images/gallery8.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#9"> <img src="http://curdweb.com/navin/click.com/images/click-tiger.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#10"> <img src="http://curdweb.com/navin/click.com/images/slider/slider5.png" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#11"> <img src="http://www.curdweb.com/wp-content/uploads/2014/08/event_1.jpg" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#12"> <img src="http://www.curdweb.com/wp-content/uploads/2014/08/templatemo_header_2-1024x512.jpg" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#13"> <img src="http://www.curdweb.com/wp-content/uploads/2014/08/templatemo_header_1-1024x512.jpg" width="100" height="100" alt="mypic" /> </a> </div>
      <div class="photo"> <a href="#14"> <img src="http://www.curdweb.com/wp-content/uploads/2014/12/jquery-plugins-1024x512.jpg" width="100" height="100" alt="mypic" /> </a> </div>
      <div id="1"> <img src="http://curdweb.com/navin/click.com/images/gallery1.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="2"> <img src="http://curdweb.com/navin/click.com/images/gallery2.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="3"> <img src="http://curdweb.com/navin/click.com/images/gallery3.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="4"> <img src="http://curdweb.com/navin/click.com/images/gallery4.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="5"> <img src="http://curdweb.com/navin/click.com/images/gallery5.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="6"> <img src="http://curdweb.com/navin/click.com/images/gallery6.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="7"> <img src="http://curdweb.com/navin/click.com/images/gallery7.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="8"> <img src="http://curdweb.com/navin/click.com/images/gallery8.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="9"> <img src="http://curdweb.com/navin/click.com/images/click-tiger.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="10"> <img src="http://curdweb.com/navin/click.com/images/slider/slider5.png" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="11"> <img src="http://www.curdweb.com/wp-content/uploads/2014/08/event_1.jpg" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="12"> <img src="http://www.curdweb.com/wp-content/uploads/2014/08/templatemo_header_2-1024x512.jpg" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="13"> <img src="http://www.curdweb.com/wp-content/uploads/2014/08/templatemo_header_1-1024x512.jpg" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
      <div id="14"> <img src="http://www.curdweb.com/wp-content/uploads/2014/12/jquery-plugins-1024x512.jpg" alt="mypic" />
        <p id="turtles_caption">My Gallery</p>
      </div>
    </div>
    <div id="text">
      <h3>Articles</h3>
      <p> <a href="#medium_box" id="11_link">Updates →</a> <br />
      <div style="height:10px"></div>
      <a href="#large_box" id="12_link">News →</a>
      </p>
      <div id="medium_box">
        <h2>Light-Box</h2>
        <p> “Usability is like love. You have to care, you have to listen, and you have to be willing to change. You’ll make mistakes along the way, but that’s where growth and forgiveness come in.” If you think of design as a tool it becomes a much more powerful skill set and by putting the user first you can transform your product into something truly remarkable.</p>
      </div>
      <div id="large_box">
        <h2>Light-Box2</h2>
        <p> “Usability is like love. You have to care, you have to listen, and you have to be willing to change. You’ll make mistakes along the way, but that’s where growth and forgiveness come in.” If you think of design as a tool it becomes a much more powerful skill set and by putting the user first you can transform your product into something truly remarkable.</p>
      </div>
    </div>
  </div>
</div>
</body>
</html>

Create style.css

@media screen, projection {
body {
 font:13px arial, helvetica, clean, sans-serif;
*font-size:small;
*font:x-small;
}
table {
 font-size:inherit;
 font:100%;
}
select, input, textarea {
 font:99% arial, helvetica, clean, sans-serif;
}
pre, code {
 font:115% monospace;
*font-size:100%;
}
body * {
 line-height:1.22em;
}
body, div, dl, dt, dd, ul, ol, li, h1, h2, h3, h4, h5, h6, pre, form, fieldset, input, textarea, p, blockquote, th, td {
 margin:0;
 padding:0;
}
table {
 border-collapse:collapse;
 border-spacing:0;
}
fieldset, img {
 border:0;
}
address, caption, cite, code, dfn, em, strong, th, var {
 font-style:normal;
 font-weight:normal;
}/*ol,ul {list-style:none;}*/
caption, th {
 text-align:left;
}
h1, h2, h3, h4, h5, h6 {
 font-size:100%;
 font-weight:normal;
}
q:before, q:after {
 content:'';
}
abbr, acronym {
 border:0;
}
/* end of yahoo reset and fonts */
 
 body {
 color:#F2EBEB;
 background:#333333;
 line-height:1.3;
}
p {
 margin:0 0 20px;
 color:#993300;
}
a {
 color:#F4F4F4;
}
a:hover {
 text-decoration:none;
}
strong {
 font-weight:bold;
}
em {
 font-style:italics;
}
h1, h2, h3, h4, h5, h6 {
 font-weight:bold;
}
h1 {
 font-size:197%;
 margin:30px 0;
 color:#4b1a1a;
 padding:8px;
}
h2 {
 font-size:230%;
 color:#57090D;
 padding:8px;
}
h3 {
 font-size:152%;
 margin:10px 0;
 padding:8px;
}
h4 {
 font-size:129%;
 margin:10px 0;
 padding:8px;
}
ul, ol {
 margin:10px 0 10px 25px;
}
ol li {
 margin:0 0 10px;
}
.myhead {
 width: 80%;
 margin: auto;
 height: 45px;
 background: #666666;
 text-shadow: 2px 2px #ff0000;
}
.myhead h2 {
 color:#FFFFFF;
 text-align:center;
}
div#photos {
 overflow:auto;
}
div.photo {
 float:left;
 display:inline;
 padding:10px
}
div.photo a img {
 border: 3px solid #fff;
 padding:1px;
}
p#turtles_caption {
 margin:5px 0 0;
}
div#text a {
 font-weight:bold;
}
div#zoom h2 {
 margin:10px 0 10px;
}
div#zoom p {
 line-height:1.6;
}
div#wrapper {
 background:#ddd;
 width:80%;
 margin:auto;
}
div#header {
 position:relative;
 border-bottom:1px dotted;
 margin:0 0 10px;
 padding:0 0 10px;
}
div#header p {
 margin:0;
 padding:0;
}
div#header h1 {
 margin:0;
 padding:0;
}
ul#nav {
 position:absolute;
 top:0;
 right:0;
 list-style:none;
 margin:0;
 padding:0;
}
ul#nav li {
 display:inline;
 padding:0 0 0 5px;
}
ul#nav li a {
}
div#content {
 padding: 10px;
}
div#content p {
 line-height:1.6;
}
div#footer {
 clear:both;
 margin:40px 0 0;
 border-top:1px dotted;
 padding:10px 0 0;
}
}

Create navin.js

var Prototype = {
  Version: '1.6.0.2',

Browser: {
    IE:     !!(window.attachEvent && !window.opera),
    Opera:  !!window.opera,
    WebKit: navigator.userAgent.indexOf('AppleWebKit/') > -1,
    Gecko:  navigator.userAgent.indexOf('Gecko') > -1 && navigator.userAgent.indexOf('KHTML') == -1,
    MobileSafari: !!navigator.userAgent.match(/Apple.*Mobile.*Safari/)
  },

BrowserFeatures: {
    XPath: !!document.evaluate,
    ElementExtensions: !!window.HTMLElement,
    SpecificElementExtensions:
      document.createElement('div').__proto__ &&
      document.createElement('div').__proto__ !==
        document.createElement('form').__proto__
  },

ScriptFragment: '<script[^>]*>([\\S\\s]*?)<\/script>',
  JSONFilter: /^\/\*-secure-([\s\S]*)\*\/\s*$/,

emptyFunction: function() { },
  K: function(x) { return x }
};

if (Prototype.Browser.MobileSafari)
  Prototype.BrowserFeatures.SpecificElementExtensions = false;

/* Based on Alex Arnell's inheritance implementation. */
var Class = {
  create: function() {
    var parent = null, properties = $A(arguments);
    if (Object.isFunction(properties[0]))
      parent = properties.shift();

function klass() {
      this.initialize.apply(this, arguments);
    }

Object.extend(klass, Class.Methods);
    klass.superclass = parent;
    klass.subclasses = [];

if (parent) {
      var subclass = function() { };
      subclass.prototype = parent.prototype;
      klass.prototype = new subclass;
      parent.subclasses.push(klass);
    }

for (var i = 0; i < properties.length; i++)
      klass.addMethods(properties[i]);

if (!klass.prototype.initialize)
      klass.prototype.initialize = Prototype.emptyFunction;

klass.prototype.constructor = klass;

return klass;
  }
};

Class.Methods = {
  addMethods: function(source) {
    var ancestor   = this.superclass && this.superclass.prototype;
    var properties = Object.keys(source);

if (!Object.keys({ toString: true }).length)
      properties.push("toString", "valueOf");

for (var i = 0, length = properties.length; i < length; i++) {
      var property = properties[i], value = source[property];
      if (ancestor && Object.isFunction(value) &&
          value.argumentNames().first() == "$super") {
        var method = value, value = Object.extend((function(m) {
          return function() { return ancestor[m].apply(this, arguments) };
        })(property).wrap(method), {
          valueOf:  function() { return method },
          toString: function() { return method.toString() }
        });
      }
      this.prototype[property] = value;
    }

return this;
  }
};

var Abstract = { };

Object.extend = function(destination, source) {
  for (var property in source)
    destination[property] = source[property];
  return destination;
};

Object.extend(Object, {
  inspect: function(object) {
    try {
      if (Object.isUndefined(object)) return 'undefined';
      if (object === null) return 'null';
      return object.inspect ? object.inspect() : String(object);
    } catch (e) {
      if (e instanceof RangeError) return '...';
      throw e;
    }
  },

toJSON: function(object) {
    var type = typeof object;
    switch (type) {
      case 'undefined':
      case 'function':
      case 'unknown': return;
      case 'boolean': return object.toString();
    }

if (object === null) return 'null';
    if (object.toJSON) return object.toJSON();
    if (Object.isElement(object)) return;

var results = [];
    for (var property in object) {
      var value = Object.toJSON(object[property]);
      if (!Object.isUndefined(value))
        results.push(property.toJSON() + ': ' + value);
    }

return '{' + results.join(', ') + '}';
  },

toQueryString: function(object) {
    return $H(object).toQueryString();
  },

toHTML: function(object) {
    return object && object.toHTML ? object.toHTML() : String.interpret(object);
  },

keys: function(object) {
    var keys = [];
    for (var property in object)
      keys.push(property);
    return keys;
  },

values: function(object) {
    var values = [];
    for (var property in object)
      values.push(object[property]);
    return values;
  },

clone: function(object) {
    return Object.extend({ }, object);
  },

isElement: function(object) {
    return object && object.nodeType == 1;
  },

isArray: function(object) {
    return object != null && typeof object == "object" &&
      'splice' in object && 'join' in object;
  },

isHash: function(object) {
    return object instanceof Hash;
  },

isFunction: function(object) {
    return typeof object == "function";
  },

isString: function(object) {
    return typeof object == "string";
  },

isNumber: function(object) {
    return typeof object == "number";
  },

isUndefined: function(object) {
    return typeof object == "undefined";
  }
});

Object.extend(Function.prototype, {
  argumentNames: function() {
    var names = this.toString().match(/^[\s$]*function[^(]*\((.*?)$/)[1].split(",").invoke("strip");
    return names.length == 1 && !names[0] ? [] : names;
  },

bind: function() {
    if (arguments.length < 2 && Object.isUndefined(arguments[0])) return this;
    var __method = this, args = $A(arguments), object = args.shift();
    return function() {
      return __method.apply(object, args.concat($A(arguments)));
    }
  },

bindAsEventListener: function() {
    var __method = this, args = $A(arguments), object = args.shift();
    return function(event) {
      return __method.apply(object, [event || window.event].concat(args));
    }
  },

curry: function() {
    if (!arguments.length) return this;
    var __method = this, args = $A(arguments);
    return function() {
      return __method.apply(this, args.concat($A(arguments)));
    }
  },

delay: function() {
    var __method = this, args = $A(arguments), timeout = args.shift() * 1000;
    return window.setTimeout(function() {
      return __method.apply(__method, args);
    }, timeout);
  },

wrap: function(wrapper) {
    var __method = this;
    return function() {
      return wrapper.apply(this, [__method.bind(this)].concat($A(arguments)));
    }
  },

methodize: function() {
    if (this._methodized) return this._methodized;
    var __method = this;
    return this._methodized = function() {
      return __method.apply(null, [this].concat($A(arguments)));
    };
  }
});

Function.prototype.defer = Function.prototype.delay.curry(0.01);

Date.prototype.toJSON = function() {
  return '"' + this.getUTCFullYear() + '-' +
    (this.getUTCMonth() + 1).toPaddedString(2) + '-' +
    this.getUTCDate().toPaddedString(2) + 'T' +
    this.getUTCHours().toPaddedString(2) + ':' +
    this.getUTCMinutes().toPaddedString(2) + ':' +
    this.getUTCSeconds().toPaddedString(2) + 'Z"';
};

var Try = {
  these: function() {
    var returnValue;

for (var i = 0, length = arguments.length; i < length; i++) {
      var lambda = arguments[i];
      try {
        returnValue = lambda();
        break;
      } catch (e) { }
    }

return returnValue;
  }
};

RegExp.prototype.match = RegExp.prototype.test;

RegExp.escape = function(str) {
  return String(str).replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1');
};

/*--------------------------------------------------------------------------*/

var PeriodicalExecuter = Class.create({
  initialize: function(callback, frequency) {
    this.callback = callback;
    this.frequency = frequency;
    this.currentlyExecuting = false;

this.registerCallback();
  },

registerCallback: function() {
    this.timer = setInterval(this.onTimerEvent.bind(this), this.frequency * 1000);
  },

execute: function() {
    this.callback(this);
  },

stop: function() {
    if (!this.timer) return;
    clearInterval(this.timer);
    this.timer = null;
  },

onTimerEvent: function() {
    if (!this.currentlyExecuting) {
      try {
        this.currentlyExecuting = true;
        this.execute();
      } finally {
        this.currentlyExecuting = false;
      }
    }
  }
});
Object.extend(String, {
  interpret: function(value) {
    return value == null ? '' : String(value);
  },
  specialChar: {
    '\b': '\\b',
    '\t': '\\t',
    '\n': '\\n',
    '\f': '\\f',
    '\r': '\\r',
    '\\': '\\\\'
  }
});

Object.extend(String.prototype, {
  gsub: function(pattern, replacement) {
    var result = '', source = this, match;
    replacement = arguments.callee.prepareReplacement(replacement);

while (source.length > 0) {
      if (match = source.match(pattern)) {
        result += source.slice(0, match.index);
        result += String.interpret(replacement(match));
        source  = source.slice(match.index + match[0].length);
      } else {
        result += source, source = '';
      }
    }
    return result;
  },

sub: function(pattern, replacement, count) {
    replacement = this.gsub.prepareReplacement(replacement);
    count = Object.isUndefined(count) ? 1 : count;

return this.gsub(pattern, function(match) {
      if (--count < 0) return match[0];
      return replacement(match);
    });
  },

scan: function(pattern, iterator) {
    this.gsub(pattern, iterator);
    return String(this);
  },

truncate: function(length, truncation) {
    length = length || 30;
    truncation = Object.isUndefined(truncation) ? '...' : truncation;
    return this.length > length ?
      this.slice(0, length - truncation.length) + truncation : String(this);
  },

strip: function() {
    return this.replace(/^\s+/, '').replace(/\s+$/, '');
  },

stripTags: function() {
    return this.replace(/<\/?[^>]+>/gi, '');
  },

stripScripts: function() {
    return this.replace(new RegExp(Prototype.ScriptFragment, 'img'), '');
  },

extractScripts: function() {
    var matchAll = new RegExp(Prototype.ScriptFragment, 'img');
    var matchOne = new RegExp(Prototype.ScriptFragment, 'im');
    return (this.match(matchAll) || []).map(function(scriptTag) {
      return (scriptTag.match(matchOne) || ['', ''])[1];
    });
  },

evalScripts: function() {
    return this.extractScripts().map(function(script) { return eval(script) });
  },

escapeHTML: function() {
    var self = arguments.callee;
    self.text.data = this;
    return self.div.innerHTML;
  },

unescapeHTML: function() {
    var div = new Element('div');
    div.innerHTML = this.stripTags();
    return div.childNodes[0] ? (div.childNodes.length > 1 ?
      $A(div.childNodes).inject('', function(memo, node) { return memo+node.nodeValue }) :
      div.childNodes[0].nodeValue) : '';
  },

toQueryParams: function(separator) {
    var match = this.strip().match(/([^?#]*)(#.*)?$/);
    if (!match) return { };

return match[1].split(separator || '&').inject({ }, function(hash, pair) {
      if ((pair = pair.split('='))[0]) {
        var key = decodeURIComponent(pair.shift());
        var value = pair.length > 1 ? pair.join('=') : pair[0];
        if (value != undefined) value = decodeURIComponent(value);

if (key in hash) {
          if (!Object.isArray(hash[key])) hash[key] = [hash[key]];
          hash[key].push(value);
        }
        else hash[key] = value;
      }
      return hash;
    });
  },

toArray: function() {
    return this.split('');
  },

succ: function() {
    return this.slice(0, this.length - 1) +
      String.fromCharCode(this.charCodeAt(this.length - 1) + 1);
  },

times: function(count) {
    return count < 1 ? '' : new Array(count + 1).join(this);
  },

camelize: function() {
    var parts = this.split('-'), len = parts.length;
    if (len == 1) return parts[0];

var camelized = this.charAt(0) == '-'
      ? parts[0].charAt(0).toUpperCase() + parts[0].substring(1)
      : parts[0];

for (var i = 1; i < len; i++)
      camelized += parts[i].charAt(0).toUpperCase() + parts[i].substring(1);

return camelized;
  },

capitalize: function() {
    return this.charAt(0).toUpperCase() + this.substring(1).toLowerCase();
  },

underscore: function() {
    return this.gsub(/::/, '/').gsub(/([A-Z]+)([A-Z][a-z])/,'#{1}_#{2}').gsub(/([a-z\d])([A-Z])/,'#{1}_#{2}').gsub(/-/,'_').toLowerCase();
  },

dasherize: function() {
    return this.gsub(/_/,'-');
  },

inspect: function(useDoubleQuotes) {
    var escapedString = this.gsub(/[\x00-\x1f\\]/, function(match) {
      var character = String.specialChar[match[0]];
      return character ? character : '\\u00' + match[0].charCodeAt().toPaddedString(2, 16);
    });
    if (useDoubleQuotes) return '"' + escapedString.replace(/"/g, '\\"') + '"';
    return "'" + escapedString.replace(/'/g, '\\\'') + "'";
  },

toJSON: function() {
    return this.inspect(true);
  },

unfilterJSON: function(filter) {
    return this.sub(filter || Prototype.JSONFilter, '#{1}');
  },

isJSON: function() {
    var str = this;
    if (str.blank()) return false;
    str = this.replace(/\\./g, '@').replace(/"[^"\\\n\r]*"/g, '');
    return (/^[,:{}\[\]0-9.\-+Eaeflnr-u \n\r\t]*$/).test(str);
  },

evalJSON: function(sanitize) {
    var json = this.unfilterJSON();
    try {
      if (!sanitize || json.isJSON()) return eval('(' + json + ')');
    } catch (e) { }
    throw new SyntaxError('Badly formed JSON string: ' + this.inspect());
  },

include: function(pattern) {
    return this.indexOf(pattern) > -1;
  },

startsWith: function(pattern) {
    return this.indexOf(pattern) === 0;
  },

endsWith: function(pattern) {
    var d = this.length - pattern.length;
    return d >= 0 && this.lastIndexOf(pattern) === d;
  },

empty: function() {
    return this == '';
  },

blank: function() {
    return /^\s*$/.test(this);
  },

interpolate: function(object, pattern) {
    return new Template(this, pattern).evaluate(object);
  }
});

if (Prototype.Browser.WebKit || Prototype.Browser.IE) Object.extend(String.prototype, {
  escapeHTML: function() {
    return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
  },
  unescapeHTML: function() {
    return this.replace(/&/g,'&').replace(/</g,'<').replace(/>/g,'>');
  }
});

String.prototype.gsub.prepareReplacement = function(replacement) {
  if (Object.isFunction(replacement)) return replacement;
  var template = new Template(replacement);
  return function(match) { return template.evaluate(match) };
};

String.prototype.parseQuery = String.prototype.toQueryParams;

Object.extend(String.prototype.escapeHTML, {
  div:  document.createElement('div'),
  text: document.createTextNode('')
});

with (String.prototype.escapeHTML) div.appendChild(text);

var Template = Class.create({
  initialize: function(template, pattern) {
    this.template = template.toString();
    this.pattern = pattern || Template.Pattern;
  },

evaluate: function(object) {
    if (Object.isFunction(object.toTemplateReplacements))
      object = object.toTemplateReplacements();

return this.template.gsub(this.pattern, function(match) {
      if (object == null) return '';

var before = match[1] || '';
      if (before == '\\') return match[2];

var ctx = object, expr = match[3];
      var pattern = /^([^.[]+|\[((?:.*?[^\\])?)\])(\.|\[|$)/;
      match = pattern.exec(expr);
      if (match == null) return before;

while (match != null) {
        var comp = match[1].startsWith('[') ? match[2].gsub('\\\\]', ']') : match[1];
        ctx = ctx[comp];
        if (null == ctx || '' == match[3]) break;
        expr = expr.substring('[' == match[3] ? match[1].length : match[0].length);
        match = pattern.exec(expr);
      }

return before + String.interpret(ctx);
    });
  }
});
Template.Pattern = /(^|.|\r|\n)(#\{(.*?)\})/;

var $break = { };

eachSlice: function(number, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var index = -number, slices = [], array = this.toArray();
    while ((index += number) < array.length)
      slices.push(array.slice(index, index+number));
    return slices.collect(iterator, context);
  },

all: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = true;
    this.each(function(value, index) {
      result = result && !!iterator(value, index);
      if (!result) throw $break;
    });
    return result;
  },

any: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result = false;
    this.each(function(value, index) {
      if (result = !!iterator(value, index))
        throw $break;
    });
    return result;
  },

collect: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];
    this.each(function(value, index) {
      results.push(iterator(value, index));
    });
    return results;
  },

detect: function(iterator, context) {
    iterator = iterator.bind(context);
    var result;
    this.each(function(value, index) {
      if (iterator(value, index)) {
        result = value;
        throw $break;
      }
    });
    return result;
  },

findAll: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (iterator(value, index))
        results.push(value);
    });
    return results;
  },

grep: function(filter, iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var results = [];

if (Object.isString(filter))
      filter = new RegExp(filter);

this.each(function(value, index) {
      if (filter.match(value))
        results.push(iterator(value, index));
    });
    return results;
  },

include: function(object) {
    if (Object.isFunction(this.indexOf))
      if (this.indexOf(object) != -1) return true;

var found = false;
    this.each(function(value) {
      if (value == object) {
        found = true;
        throw $break;
      }
    });
    return found;
  },

inGroupsOf: function(number, fillWith) {
    fillWith = Object.isUndefined(fillWith) ? null : fillWith;
    return this.eachSlice(number, function(slice) {
      while(slice.length < number) slice.push(fillWith);
      return slice;
    });
  },

inject: function(memo, iterator, context) {
    iterator = iterator.bind(context);
    this.each(function(value, index) {
      memo = iterator(memo, value, index);
    });
    return memo;
  },

invoke: function(method) {
    var args = $A(arguments).slice(1);
    return this.map(function(value) {
      return value[method].apply(value, args);
    });
  },

max: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value >= result)
        result = value;
    });
    return result;
  },

min: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var result;
    this.each(function(value, index) {
      value = iterator(value, index);
      if (result == null || value < result)
        result = value;
    });
    return result;
  },

partition: function(iterator, context) {
    iterator = iterator ? iterator.bind(context) : Prototype.K;
    var trues = [], falses = [];
    this.each(function(value, index) {
      (iterator(value, index) ?
        trues : falses).push(value);
    });
    return [trues, falses];
  },

pluck: function(property) {
    var results = [];
    this.each(function(value) {
      results.push(value[property]);
    });
    return results;
  },

reject: function(iterator, context) {
    iterator = iterator.bind(context);
    var results = [];
    this.each(function(value, index) {
      if (!iterator(value, index))
        results.push(value);
    });
    return results;
  },

sortBy: function(iterator, context) {
    iterator = iterator.bind(context);
    return this.map(function(value, index) {
      return {value: value, criteria: iterator(value, index)};
    }).sort(function(left, right) {
      var a = left.criteria, b = right.criteria;
      return a < b ? -1 : a > b ? 1 : 0;
    }).pluck('value');
  },

toArray: function() {
    return this.map();
  },

zip: function() {
    var iterator = Prototype.K, args = $A(arguments);
    if (Object.isFunction(args.last()))
      iterator = args.pop();

var collections = [this].concat(args).map($A);
    return this.map(function(value, index) {
      return iterator(collections.pluck(index));
    });
  },

size: function() {
    return this.toArray().length;
  },

inspect: function() {
    return '#<Enumerable:' + this.toArray().inspect() + '>';
  }
};

Object.extend(Enumerable, {
  map:     Enumerable.collect,
  find:    Enumerable.detect,
  select:  Enumerable.findAll,
  filter:  Enumerable.findAll,
  member:  Enumerable.include,
  entries: Enumerable.toArray,
  every:   Enumerable.all,
  some:    Enumerable.any
});
function $A(iterable) {
  if (!iterable) return [];
  if (iterable.toArray) return iterable.toArray();
  var length = iterable.length || 0, results = new Array(length);
  while (length--) results[length] = iterable[length];
  return results;
}

if (Prototype.Browser.WebKit) {
  $A = function(iterable) {
    if (!iterable) return [];
    if (!(Object.isFunction(iterable) && iterable == '[object NodeList]') &&
        iterable.toArray) return iterable.toArray();
    var length = iterable.length || 0, results = new Array(length);
    while (length--) results[length] = iterable[length];
    return results;
  };
}

Array.from = $A;

Object.extend(Array.prototype, Enumerable);

if (!Array.prototype._reverse) Array.prototype._reverse = Array.prototype.reverse;

Object.extend(Array.prototype, {
  _each: function(iterator) {
    for (var i = 0, length = this.length; i < length; i++)
      iterator(this[i]);
  },

clear: function() {
    this.length = 0;
    return this;
  },

first: function() {
    return this[0];
  },

last: function() {
    return this[this.length - 1];
  },

compact: function() {
    return this.select(function(value) {
      return value != null;
    });
  },

flatten: function() {
    return this.inject([], function(array, value) {
      return array.concat(Object.isArray(value) ?
        value.flatten() : [value]);
    });
  },

without: function() {
    var values = $A(arguments);
    return this.select(function(value) {
      return !values.include(value);
    });
  },

reverse: function(inline) {
    return (inline !== false ? this : this.toArray())._reverse();
  },

reduce: function() {
    return this.length > 1 ? this : this[0];
  },

uniq: function(sorted) {
    return this.inject([], function(array, value, index) {
      if (0 == index || (sorted ? array.last() != value : !array.include(value)))
        array.push(value);
      return array;
    });
  },

intersect: function(array) {
    return this.uniq().findAll(function(item) {
      return array.detect(function(value) { return item === value });
    });
  },

clone: function() {
    return [].concat(this);
  },

size: function() {
    return this.length;
  },

inspect: function() {
    return '[' + this.map(Object.inspect).join(', ') + ']';
  },

toJSON: function() {
    var results = [];
    this.each(function(object) {
      var value = Object.toJSON(object);
      if (!Object.isUndefined(value)) results.push(value);
    });
    return '[' + results.join(', ') + ']';
  }
});

// use native browser JS 1.6 implementation if available
if (Object.isFunction(Array.prototype.forEach))
  Array.prototype._each = Array.prototype.forEach;

if (!Array.prototype.indexOf) Array.prototype.indexOf = function(item, i) {
  i || (i = 0);
  var length = this.length;
  if (i < 0) i = length + i;
  for (; i < length; i++)
    if (this[i] === item) return i;
  return -1;
};

if (!Array.prototype.lastIndexOf) Array.prototype.lastIndexOf = function(item, i) {
  i = isNaN(i) ? this.length : (i < 0 ? this.length + i : i) + 1;
  var n = this.slice(0, i).reverse().indexOf(item);
  return (n < 0) ? n : i - n - 1;
};

Array.prototype.toArray = Array.prototype.clone;

function $w(string) {
  if (!Object.isString(string)) return [];
  string = string.strip();
  return string ? string.split(/\s+/) : [];
}

if (Prototype.Browser.Opera){
  Array.prototype.concat = function() {
    var array = [];
    for (var i = 0, length = this.length; i < length; i++) array.push(this[i]);
    for (var i = 0, length = arguments.length; i < length; i++) {
      if (Object.isArray(arguments[i])) {
        for (var j = 0, arrayLength = arguments[i].length; j < arrayLength; j++)
          array.push(arguments[i][j]);
      } else {
        array.push(arguments[i]);
      }
    }
    return array;
  };
}
Object.extend(Number.prototype, {
  toColorPart: function() {
    return this.toPaddedString(2, 16);
  },

succ: function() {
    return this + 1;
  },

times: function(iterator) {
    $R(0, this, true).each(iterator);
    return this;
  },

toPaddedString: function(length, radix) {
    var string = this.toString(radix || 10);
    return '0'.times(length - string.length) + string;
  },

toJSON: function() {
    return isFinite(this) ? this.toString() : 'null';
  }
});

$w('abs round ceil floor').each(function(method){
  Number.prototype[method] = Math[method].methodize();
});
function $H(object) {
  return new Hash(object);
};

var Hash = Class.create(Enumerable, (function() {

function toQueryPair(key, value) {
    if (Object.isUndefined(value)) return key;
    return key + '=' + encodeURIComponent(String.interpret(value));
  }

return {
    initialize: function(object) {
      this._object = Object.isHash(object) ? object.toObject() : Object.clone(object);
    },

_each: function(iterator) {
      for (var key in this._object) {
        var value = this._object[key], pair = [key, value];
        pair.key = key;
        pair.value = value;
        iterator(pair);
      }
    },

set: function(key, value) {
      return this._object[key] = value;
    },

get: function(key) {
      return this._object[key];
    },

unset: function(key) {
      var value = this._object[key];
      delete this._object[key];
      return value;
    },

toObject: function() {
      return Object.clone(this._object);
    },

keys: function() {
      return this.pluck('key');
    },

values: function() {
      return this.pluck('value');
    },

index: function(value) {
      var match = this.detect(function(pair) {
        return pair.value === value;
      });
      return match && match.key;
    },

merge: function(object) {
      return this.clone().update(object);
    },

update: function(object) {
      return new Hash(object).inject(this, function(result, pair) {
        result.set(pair.key, pair.value);
        return result;
      });
    },

toQueryString: function() {
      return this.map(function(pair) {
        var key = encodeURIComponent(pair.key), values = pair.value;

if (values && typeof values == 'object') {
          if (Object.isArray(values))
            return values.map(toQueryPair.curry(key)).join('&');
        }
        return toQueryPair(key, values);
      }).join('&');
    },

inspect: function() {
      return '#<Hash:{' + this.map(function(pair) {
        return pair.map(Object.inspect).join(': ');
      }).join(', ') + '}>';
    },

toJSON: function() {
      return Object.toJSON(this.toObject());
    },

clone: function() {
      return new Hash(this);
    }
  }
})());

Hash.prototype.toTemplateReplacements = Hash.prototype.toObject;
Hash.from = $H;
var ObjectRange = Class.create(Enumerable, {
  initialize: function(start, end, exclusive) {
    this.start = start;
    this.end = end;
    this.exclusive = exclusive;
  },

_each: function(iterator) {
    var value = this.start;
    while (this.include(value)) {
      iterator(value);
      value = value.succ();
    }
  },

include: function(value) {
    if (value < this.start)
      return false;
    if (this.exclusive)
      return value < this.end;
    return value <= this.end;
  }
});

var $R = function(start, end, exclusive) {
  return new ObjectRange(start, end, exclusive);
};

var Ajax = {
  getTransport: function() {
    return Try.these(
      function() {return new XMLHttpRequest()},
      function() {return new ActiveXObject('Msxml2.XMLHTTP')},
      function() {return new ActiveXObject('Microsoft.XMLHTTP')}
    ) || false;
  },

activeRequestCount: 0
};

Ajax.Responders = {
  responders: [],

_each: function(iterator) {
    this.responders._each(iterator);
  },

unregister: function(responder) {
    this.responders = this.responders.without(responder);
  },

dispatch: function(callback, request, transport, json) {
    this.each(function(responder) {
      if (Object.isFunction(responder[callback])) {
        try {
          responder[callback].apply(responder, [request, transport, json]);
        } catch (e) { }
      }
    });
  }
};

Object.extend(Ajax.Responders, Enumerable);

Ajax.Responders.register({
  onCreate:   function() { Ajax.activeRequestCount++ },
  onComplete: function() { Ajax.activeRequestCount-- }
});

Ajax.Base = Class.create({
  initialize: function(options) {
    this.options = {
      method:       'post',
      asynchronous: true,
      contentType:  'application/x-www-form-urlencoded',
      encoding:     'UTF-8',
      parameters:   '',
      evalJSON:     true,
      evalJS:       true
    };
    Object.extend(this.options, options || { });

this.options.method = this.options.method.toLowerCase();

if (Object.isString(this.options.parameters))
      this.options.parameters = this.options.parameters.toQueryParams();
    else if (Object.isHash(this.options.parameters))
      this.options.parameters = this.options.parameters.toObject();
  }
});

Ajax.Request = Class.create(Ajax.Base, {
  _complete: false,

initialize: function($super, url, options) {
    $super(options);
    this.transport = Ajax.getTransport();
    this.request(url);
  },

request: function(url) {
    this.url = url;
    this.method = this.options.method;
    var params = Object.clone(this.options.parameters);

if (!['get', 'post'].include(this.method)) {
      // simulate other verbs over post
      params['_method'] = this.method;
      this.method = 'post';
    }

this.parameters = params;

if (params = Object.toQueryString(params)) {
      // when GET, append parameters to URL
      if (this.method == 'get')
        this.url += (this.url.include('?') ? '&' : '?') + params;
      else if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
        params += '&_=';
    }

try {
      var response = new Ajax.Response(this);
      if (this.options.onCreate) this.options.onCreate(response);
      Ajax.Responders.dispatch('onCreate', this, response);

this.transport.open(this.method.toUpperCase(), this.url,
        this.options.asynchronous);

if (this.options.asynchronous) this.respondToReadyState.bind(this).defer(1);

this.transport.onreadystatechange = this.onStateChange.bind(this);
      this.setRequestHeaders();

this.body = this.method == 'post' ? (this.options.postBody || params) : null;
      this.transport.send(this.body);

/* Force Firefox to handle ready state 4 for synchronous requests */
      if (!this.options.asynchronous && this.transport.overrideMimeType)
        this.onStateChange();

}
    catch (e) {
      this.dispatchException(e);
    }
  },

onStateChange: function() {
    var readyState = this.transport.readyState;
    if (readyState > 1 && !((readyState == 4) && this._complete))
      this.respondToReadyState(this.transport.readyState);
  },

setRequestHeaders: function() {
    var headers = {
      'X-Requested-With': 'XMLHttpRequest',
      'X-Prototype-Version': Prototype.Version,
      'Accept': 'text/javascript, text/html, application/xml, text/xml, */*'
    };

if (this.method == 'post') {
      headers['Content-type'] = this.options.contentType +
        (this.options.encoding ? '; charset=' + this.options.encoding : '');

/* Force "Connection: close" for older Mozilla browsers to work
       * around a bug where XMLHttpRequest sends an incorrect
       * Content-length header. See Mozilla Bugzilla #246651.
       */
      if (this.transport.overrideMimeType &&
          (navigator.userAgent.match(/Gecko\/(\d{4})/) || [0,2005])[1] < 2005)
            headers['Connection'] = 'close';
    }

// user-defined headers
    if (typeof this.options.requestHeaders == 'object') {
      var extras = this.options.requestHeaders;

if (Object.isFunction(extras.push))
        for (var i = 0, length = extras.length; i < length; i += 2)
          headers[extras[i]] = extras[i+1];
      else
        $H(extras).each(function(pair) { headers[pair.key] = pair.value });
    }

for (var name in headers)
      this.transport.setRequestHeader(name, headers[name]);
  },

success: function() {
    var status = this.getStatus();
    return !status || (status >= 200 && status < 300);
  },

getStatus: function() {
    try {
      return this.transport.status || 0;
    } catch (e) { return 0 }
  },

respondToReadyState: function(readyState) {
    var state = Ajax.Request.Events[readyState], response = new Ajax.Response(this);

if (state == 'Complete') {
      try {
        this._complete = true;
        (this.options['on' + response.status]
         || this.options['on' + (this.success() ? 'Success' : 'Failure')]
         || Prototype.emptyFunction)(response, response.headerJSON);
      } catch (e) {
        this.dispatchException(e);
      }

var contentType = response.getHeader('Content-type');
      if (this.options.evalJS == 'force'
          || (this.options.evalJS && this.isSameOrigin() && contentType
          && contentType.match(/^\s*(text|application)\/(x-)?(java|ecma)script(;.*)?\s*$/i)))
        this.evalResponse();
    }

try {
      (this.options['on' + state] || Prototype.emptyFunction)(response, response.headerJSON);
      Ajax.Responders.dispatch('on' + state, this, response, response.headerJSON);
    } catch (e) {
      this.dispatchException(e);
    }

if (state == 'Complete') {
      // avoid memory leak in MSIE: clean up
      this.transport.onreadystatechange = Prototype.emptyFunction;
    }
  },

isSameOrigin: function() {
    var m = this.url.match(/^\s*https?:\/\/[^\/]*/);
    return !m || (m[0] == '#{protocol}//#{domain}#{port}'.interpolate({
      protocol: location.protocol,
      domain: document.domain,
      port: location.port ? ':' + location.port : ''
    }));
  },

getHeader: function(name) {
    try {
      return this.transport.getResponseHeader(name) || null;
    } catch (e) { return null }
  },

evalResponse: function() {
    try {
      return eval((this.transport.responseText || '').unfilterJSON());
    } catch (e) {
      this.dispatchException(e);
    }
  },

dispatchException: function(exception) {
    (this.options.onException || Prototype.emptyFunction)(this, exception);
    Ajax.Responders.dispatch('onException', this, exception);
  }
});

Ajax.Request.Events =
  ['Uninitialized', 'Loading', 'Loaded', 'Interactive', 'Complete'];

Ajax.Response = Class.create({
  initialize: function(request){
    this.request = request;
    var transport  = this.transport  = request.transport,
        readyState = this.readyState = transport.readyState;

if((readyState > 2 && !Prototype.Browser.IE) || readyState == 4) {
      this.status       = this.getStatus();
      this.statusText   = this.getStatusText();
      this.responseText = String.interpret(transport.responseText);
      this.headerJSON   = this._getHeaderJSON();
    }

if(readyState == 4) {
      var xml = transport.responseXML;
      this.responseXML  = Object.isUndefined(xml) ? null : xml;
      this.responseJSON = this._getResponseJSON();
    }
  },

status:      0,
  statusText: '',

getStatus: Ajax.Request.prototype.getStatus,

getStatusText: function() {
    try {
      return this.transport.statusText || '';
    } catch (e) { return '' }
  },

getHeader: Ajax.Request.prototype.getHeader,

getAllHeaders: function() {
    try {
      return this.getAllResponseHeaders();
    } catch (e) { return null }
  },

getResponseHeader: function(name) {
    return this.transport.getResponseHeader(name);
  },

getAllResponseHeaders: function() {
    return this.transport.getAllResponseHeaders();
  },

_getHeaderJSON: function() {
    var json = this.getHeader('X-JSON');
    if (!json) return null;
    json = decodeURIComponent(escape(json));
    try {
      return json.evalJSON(this.request.options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  },

_getResponseJSON: function() {
    var options = this.request.options;
    if (!options.evalJSON || (options.evalJSON != 'force' &&
      !(this.getHeader('Content-type') || '').include('application/json')) ||
        this.responseText.blank())
          return null;
    try {
      return this.responseText.evalJSON(options.sanitizeJSON ||
        !this.request.isSameOrigin());
    } catch (e) {
      this.request.dispatchException(e);
    }
  }
});

Ajax.Updater = Class.create(Ajax.Request, {
  initialize: function($super, container, url, options) {
    this.container = {
      success: (container.success || container),
      failure: (container.failure || (container.success ? null : container))
    };

options = Object.clone(options);
    var onComplete = options.onComplete;
    options.onComplete = (function(response, json) {
      this.updateContent(response.responseText);
      if (Object.isFunction(onComplete)) onComplete(response, json);
    }).bind(this);

$super(url, options);
  },

updateContent: function(responseText) {
    var receiver = this.container[this.success() ? 'success' : 'failure'],
        options = this.options;

if (!options.evalScripts) responseText = responseText.stripScripts();

if (receiver = $(receiver)) {
      if (options.insertion) {
        if (Object.isString(options.insertion)) {
          var insertion = { }; insertion[options.insertion] = responseText;
          receiver.insert(insertion);
        }
        else options.insertion(receiver, responseText);
      }
      else receiver.update(responseText);
    }
  }
});

Ajax.PeriodicalUpdater = Class.create(Ajax.Base, {
  initialize: function($super, container, url, options) {
    $super(options);
    this.onComplete = this.options.onComplete;

this.frequency = (this.options.frequency || 2);
    this.decay = (this.options.decay || 1);

this.updater = { };
    this.container = container;
    this.url = url;

this.start();
  },

start: function() {
    this.options.onComplete = this.updateComplete.bind(this);
    this.onTimerEvent();
  },

stop: function() {
    this.updater.options.onComplete = undefined;
    clearTimeout(this.timer);
    (this.onComplete || Prototype.emptyFunction).apply(this, arguments);
  },

updateComplete: function(response) {
    if (this.options.decay) {
      this.decay = (response.responseText == this.lastText ?
        this.decay * this.options.decay : 1);

this.lastText = response.responseText;
    }
    this.timer = this.onTimerEvent.bind(this).delay(this.decay * this.frequency);
  },

onTimerEvent: function() {
    this.updater = new Ajax.Updater(this.container, this.url, this.options);
  }
});
function $(element) {
  if (arguments.length > 1) {
    for (var i = 0, elements = [], length = arguments.length; i < length; i++)
      elements.push($(arguments[i]));
    return elements;
  }
  if (Object.isString(element))
    element = document.getElementById(element);
  return Element.extend(element);
}

if (Prototype.BrowserFeatures.XPath) {
  document._getElementsByXPath = function(expression, parentElement) {
    var results = [];
    var query = document.evaluate(expression, $(parentElement) || document,
      null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    for (var i = 0, length = query.snapshotLength; i < length; i++)
      results.push(Element.extend(query.snapshotItem(i)));
    return results;
  };
}

/*--------------------------------------------------------------------------*/

if (!window.Node) var Node = { };

if (!Node.ELEMENT_NODE) {
  // DOM level 2 ECMAScript Language Binding
  Object.extend(Node, {
    ELEMENT_NODE: 1,
    ATTRIBUTE_NODE: 2,
    TEXT_NODE: 3,
    CDATA_SECTION_NODE: 4,
    ENTITY_REFERENCE_NODE: 5,
    ENTITY_NODE: 6,
    PROCESSING_INSTRUCTION_NODE: 7,
    COMMENT_NODE: 8,
    DOCUMENT_NODE: 9,
    DOCUMENT_TYPE_NODE: 10,
    DOCUMENT_FRAGMENT_NODE: 11,
    NOTATION_NODE: 12
  });
}

Element.cache = { };

Element.Methods = {
  visible: function(element) {
    return $(element).style.display != 'none';
  },

toggle: function(element) {
    element = $(element);
    Element[Element.visible(element) ? 'hide' : 'show'](element);
    return element;
  },

hide: function(element) {
    $(element).style.display = 'none';
    return element;
  },

show: function(element) {
    $(element).style.display = '';
    return element;
  },

remove: function(element) {
    element = $(element);
    element.parentNode.removeChild(element);
    return element;
  },

update: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);
    content = Object.toHTML(content);
    element.innerHTML = content.stripScripts();
    content.evalScripts.bind(content).defer();
    return element;
  },

replace: function(element, content) {
    element = $(element);
    if (content && content.toElement) content = content.toElement();
    else if (!Object.isElement(content)) {
      content = Object.toHTML(content);
      var range = element.ownerDocument.createRange();
      range.selectNode(element);
      content.evalScripts.bind(content).defer();
      content = range.createContextualFragment(content.stripScripts());
    }
    element.parentNode.replaceChild(content, element);
    return element;
  },

insert: function(element, insertions) {
    element = $(element);

if (Object.isString(insertions) || Object.isNumber(insertions) ||
        Object.isElement(insertions) || (insertions && (insertions.toElement || insertions.toHTML)))
          insertions = {bottom:insertions};

var content, insert, tagName, childNodes;

for (var position in insertions) {
      content  = insertions[position];
      position = position.toLowerCase();
      insert = Element._insertionTranslations[position];

if (content && content.toElement) content = content.toElement();
      if (Object.isElement(content)) {
        insert(element, content);
        continue;
      }

content = Object.toHTML(content);

tagName = ((position == 'before' || position == 'after')
        ? element.parentNode : element).tagName.toUpperCase();

childNodes = Element._getContentFromAnonymousElement(tagName, content.stripScripts());

if (position == 'top' || position == 'after') childNodes.reverse();
      childNodes.each(insert.curry(element));

content.evalScripts.bind(content).defer();
    }

return element;
  },

wrap: function(element, wrapper, attributes) {
    element = $(element);
    if (Object.isElement(wrapper))
      $(wrapper).writeAttribute(attributes || { });
    else if (Object.isString(wrapper)) wrapper = new Element(wrapper, attributes);
    else wrapper = new Element('div', wrapper);
    if (element.parentNode)
      element.parentNode.replaceChild(wrapper, element);
    wrapper.appendChild(element);
    return wrapper;
  },

inspect: function(element) {
    element = $(element);
    var result = '<' + element.tagName.toLowerCase();
    $H({'id': 'id', 'className': 'class'}).each(function(pair) {
      var property = pair.first(), attribute = pair.last();
      var value = (element[property] || '').toString();
      if (value) result += ' ' + attribute + '=' + value.inspect(true);
    });
    return result + '>';
  },

recursivelyCollect: function(element, property) {
    element = $(element);
    var elements = [];
    while (element = element[property])
      if (element.nodeType == 1)
        elements.push(Element.extend(element));
    return elements;
  },

ancestors: function(element) {
    return $(element).recursivelyCollect('parentNode');
  },

descendants: function(element) {
    return $(element).select("*");
  },

firstDescendant: function(element) {
    element = $(element).firstChild;
    while (element && element.nodeType != 1) element = element.nextSibling;
    return $(element);
  },

immediateDescendants: function(element) {
    if (!(element = $(element).firstChild)) return [];
    while (element && element.nodeType != 1) element = element.nextSibling;
    if (element) return [element].concat($(element).nextSiblings());
    return [];
  },

previousSiblings: function(element) {
    return $(element).recursivelyCollect('previousSibling');
  },

nextSiblings: function(element) {
    return $(element).recursivelyCollect('nextSibling');
  },

siblings: function(element) {
    element = $(element);
    return element.previousSiblings().reverse().concat(element.nextSiblings());
  },

match: function(element, selector) {
    if (Object.isString(selector))
      selector = new Selector(selector);
    return selector.match($(element));
  },

up: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(element.parentNode);
    var ancestors = element.ancestors();
    return Object.isNumber(expression) ? ancestors[expression] :
      Selector.findElement(ancestors, expression, index);
  },

down: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return element.firstDescendant();
    return Object.isNumber(expression) ? element.descendants()[expression] :
      element.select(expression)[index || 0];
  },

previous: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.previousElementSibling(element));
    var previousSiblings = element.previousSiblings();
    return Object.isNumber(expression) ? previousSiblings[expression] :
      Selector.findElement(previousSiblings, expression, index);
  },

next: function(element, expression, index) {
    element = $(element);
    if (arguments.length == 1) return $(Selector.handlers.nextElementSibling(element));
    var nextSiblings = element.nextSiblings();
    return Object.isNumber(expression) ? nextSiblings[expression] :
      Selector.findElement(nextSiblings, expression, index);
  },

select: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element, args);
  },

adjacent: function() {
    var args = $A(arguments), element = $(args.shift());
    return Selector.findChildElements(element.parentNode, args).without(element);
  },

identify: function(element) {
    element = $(element);
    var id = element.readAttribute('id'), self = arguments.callee;
    if (id) return id;
    do { id = 'anonymous_element_' + self.counter++ } while ($(id));
    element.writeAttribute('id', id);
    return id;
  },

readAttribute: function(element, name) {
    element = $(element);
    if (Prototype.Browser.IE) {
      var t = Element._attributeTranslations.read;
      if (t.values[name]) return t.values[name](element, name);
      if (t.names[name]) name = t.names[name];
      if (name.include(':')) {
        return (!element.attributes || !element.attributes[name]) ? null :
         element.attributes[name].value;
      }
    }
    return element.getAttribute(name);
  },

writeAttribute: function(element, name, value) {
    element = $(element);
    var attributes = { }, t = Element._attributeTranslations.write;

if (typeof name == 'object') attributes = name;
    else attributes[name] = Object.isUndefined(value) ? true : value;

for (var attr in attributes) {
      name = t.names[attr] || attr;
      value = attributes[attr];
      if (t.values[attr]) name = t.values[attr](element, value);
      if (value === false || value === null)
        element.removeAttribute(name);
      else if (value === true)
        element.setAttribute(name, name);
      else element.setAttribute(name, value);
    }
    return element;
  },

getHeight: function(element) {
    return $(element).getDimensions().height;
  },

getWidth: function(element) {
    return $(element).getDimensions().width;
  },

classNames: function(element) {
    return new Element.ClassNames(element);
  },

hasClassName: function(element, className) {
    if (!(element = $(element))) return;
    var elementClassName = element.className;
    return (elementClassName.length > 0 && (elementClassName == className ||
      new RegExp("(^|\\s)" + className + "(\\s|$)").test(elementClassName)));
  },

addClassName: function(element, className) {
    if (!(element = $(element))) return;
    if (!element.hasClassName(className))
      element.className += (element.className ? ' ' : '') + className;
    return element;
  },

removeClassName: function(element, className) {
    if (!(element = $(element))) return;
    element.className = element.className.replace(
      new RegExp("(^|\\s+)" + className + "(\\s+|$)"), ' ').strip();
    return element;
  },

toggleClassName: function(element, className) {
    if (!(element = $(element))) return;
    return element[element.hasClassName(className) ?
      'removeClassName' : 'addClassName'](className);
  },

// removes whitespace-only text node children
  cleanWhitespace: function(element) {
    element = $(element);
    var node = element.firstChild;
    while (node) {
      var nextNode = node.nextSibling;
      if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
        element.removeChild(node);
      node = nextNode;
    }
    return element;
  },

empty: function(element) {
    return $(element).innerHTML.blank();
  },

descendantOf: function(element, ancestor) {
    element = $(element), ancestor = $(ancestor);
    var originalAncestor = ancestor;

if (element.compareDocumentPosition)
      return (element.compareDocumentPosition(ancestor) & 8) === 8;

if (element.sourceIndex && !Prototype.Browser.Opera) {
      var e = element.sourceIndex, a = ancestor.sourceIndex,
       nextAncestor = ancestor.nextSibling;
      if (!nextAncestor) {
        do { ancestor = ancestor.parentNode; }
        while (!(nextAncestor = ancestor.nextSibling) && ancestor.parentNode);
      }
      if (nextAncestor && nextAncestor.sourceIndex)
       return (e > a && e < nextAncestor.sourceIndex);
    }

while (element = element.parentNode)
      if (element == originalAncestor) return true;
    return false;
  },

scrollTo: function(element) {
    element = $(element);
    var pos = element.cumulativeOffset();
    window.scrollTo(pos[0], pos[1]);
    return element;
  },

getStyle: function(element, style) {
    element = $(element);
    style = style == 'float' ? 'cssFloat' : style.camelize();
    var value = element.style[style];
    if (!value) {
      var css = document.defaultView.getComputedStyle(element, null);
      value = css ? css[style] : null;
    }
    if (style == 'opacity') return value ? parseFloat(value) : 1.0;
    return value == 'auto' ? null : value;
  },

getOpacity: function(element) {
    return $(element).getStyle('opacity');
  },

setStyle: function(element, styles) {
    element = $(element);
    var elementStyle = element.style, match;
    if (Object.isString(styles)) {
      element.style.cssText += ';' + styles;
      return styles.include('opacity') ?
        element.setOpacity(styles.match(/opacity:\s*(\d?\.?\d*)/)[1]) : element;
    }
    for (var property in styles)
      if (property == 'opacity') element.setOpacity(styles[property]);
      else
        elementStyle[(property == 'float' || property == 'cssFloat') ?
          (Object.isUndefined(elementStyle.styleFloat) ? 'cssFloat' : 'styleFloat') :
            property] = styles[property];

return element;
  },

setOpacity: function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;
    return element;
  },

getDimensions: function(element) {
    element = $(element);
    var display = $(element).getStyle('display');
    if (display != 'none' && display != null) // Safari bug
      return {width: element.offsetWidth, height: element.offsetHeight};

// All *Width and *Height properties give 0 on elements with display none,
    // so enable the element temporarily
    var els = element.style;
    var originalVisibility = els.visibility;
    var originalPosition = els.position;
    var originalDisplay = els.display;
    els.visibility = 'hidden';
    els.position = 'absolute';
    els.display = 'block';
    var originalWidth = element.clientWidth;
    var originalHeight = element.clientHeight;
    els.display = originalDisplay;
    els.position = originalPosition;
    els.visibility = originalVisibility;
    return {width: originalWidth, height: originalHeight};
  },

makePositioned: function(element) {
    element = $(element);
    var pos = Element.getStyle(element, 'position');
    if (pos == 'static' || !pos) {
      element._madePositioned = true;
      element.style.position = 'relative';
      // Opera returns the offset relative to the positioning context, when an
      // element is position relative but top and left have not been defined
      if (window.opera) {
        element.style.top = 0;
        element.style.left = 0;
      }
    }
    return element;
  },

undoPositioned: function(element) {
    element = $(element);
    if (element._madePositioned) {
      element._madePositioned = undefined;
      element.style.position =
        element.style.top =
        element.style.left =
        element.style.bottom =
        element.style.right = '';
    }
    return element;
  },

makeClipping: function(element) {
    element = $(element);
    if (element._overflow) return element;
    element._overflow = Element.getStyle(element, 'overflow') || 'auto';
    if (element._overflow !== 'hidden')
      element.style.overflow = 'hidden';
    return element;
  },

undoClipping: function(element) {
    element = $(element);
    if (!element._overflow) return element;
    element.style.overflow = element._overflow == 'auto' ? '' : element._overflow;
    element._overflow = null;
    return element;
  },

cumulativeOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

positionedOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      element = element.offsetParent;
      if (element) {
        if (element.tagName == 'BODY') break;
        var p = Element.getStyle(element, 'position');
        if (p !== 'static') break;
      }
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

absolutize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'absolute') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

var offsets = element.positionedOffset();
    var top     = offsets[1];
    var left    = offsets[0];
    var width   = element.clientWidth;
    var height  = element.clientHeight;

element._originalLeft   = left - parseFloat(element.style.left  || 0);
    element._originalTop    = top  - parseFloat(element.style.top || 0);
    element._originalWidth  = element.style.width;
    element._originalHeight = element.style.height;

element.style.position = 'absolute';
    element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.width  = width + 'px';
    element.style.height = height + 'px';
    return element;
  },

relativize: function(element) {
    element = $(element);
    if (element.getStyle('position') == 'relative') return;
    // Position.prepare(); // To be done manually by Scripty when it needs it.

element.style.position = 'relative';
    var top  = parseFloat(element.style.top  || 0) - (element._originalTop || 0);
    var left = parseFloat(element.style.left || 0) - (element._originalLeft || 0);

element.style.top    = top + 'px';
    element.style.left   = left + 'px';
    element.style.height = element._originalHeight;
    element.style.width  = element._originalWidth;
    return element;
  },

cumulativeScrollOffset: function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.scrollTop  || 0;
      valueL += element.scrollLeft || 0;
      element = element.parentNode;
    } while (element);
    return Element._returnOffset(valueL, valueT);
  },

getOffsetParent: function(element) {
    if (element.offsetParent) return $(element.offsetParent);
    if (element == document.body) return $(element);

while ((element = element.parentNode) && element != document.body)
      if (Element.getStyle(element, 'position') != 'static')
        return $(element);

return $(document.body);
  },

viewportOffset: function(forElement) {
    var valueT = 0, valueL = 0;

var element = forElement;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;

// Safari fix
      if (element.offsetParent == document.body &&
        Element.getStyle(element, 'position') == 'absolute') break;

} while (element = element.offsetParent);

element = forElement;
    do {
      if (!Prototype.Browser.Opera || element.tagName == 'BODY') {
        valueT -= element.scrollTop  || 0;
        valueL -= element.scrollLeft || 0;
      }
    } while (element = element.parentNode);

return Element._returnOffset(valueL, valueT);
  },

clonePosition: function(element, source) {
    var options = Object.extend({
      setLeft:    true,
      setTop:     true,
      setWidth:   true,
      setHeight:  true,
      offsetTop:  0,
      offsetLeft: 0
    }, arguments[2] || { });

// find page position of source
    source = $(source);
    var p = source.viewportOffset();

// find coordinate system to use
    element = $(element);
    var delta = [0, 0];
    var parent = null;
    // delta [0,0] will do fine with position: fixed elements,
    // position:absolute needs offsetParent deltas
    if (Element.getStyle(element, 'position') == 'absolute') {
      parent = element.getOffsetParent();
      delta = parent.viewportOffset();
    }

// correct by body offsets (fixes Safari)
    if (parent == document.body) {
      delta[0] -= document.body.offsetLeft;
      delta[1] -= document.body.offsetTop;
    }

// set position
    if (options.setLeft)   element.style.left  = (p[0] - delta[0] + options.offsetLeft) + 'px';
    if (options.setTop)    element.style.top   = (p[1] - delta[1] + options.offsetTop) + 'px';
    if (options.setWidth)  element.style.width = source.offsetWidth + 'px';
    if (options.setHeight) element.style.height = source.offsetHeight + 'px';
    return element;
  }
};

Element.Methods.identify.counter = 1;

Object.extend(Element.Methods, {
  getElementsBySelector: Element.Methods.select,
  childElements: Element.Methods.immediateDescendants
});

Element._attributeTranslations = {
  write: {
    names: {
      className: 'class',
      htmlFor:   'for'
    },
    values: { }
  }
};

if (Prototype.Browser.Opera) {
  Element.Methods.getStyle = Element.Methods.getStyle.wrap(
    function(proceed, element, style) {
      switch (style) {
        case 'left': case 'top': case 'right': case 'bottom':
          if (proceed(element, 'position') === 'static') return null;
        case 'height': case 'width':
          // returns '0px' for hidden elements; we want it to return null
          if (!Element.visible(element)) return null;

// returns the border-box dimensions rather than the content-box
          // dimensions, so we subtract padding and borders from the value
          var dim = parseInt(proceed(element, style), 10);

if (dim !== element['offset' + style.capitalize()])
            return dim + 'px';

var properties;
          if (style === 'height') {
            properties = ['border-top-width', 'padding-top',
             'padding-bottom', 'border-bottom-width'];
          }
          else {
            properties = ['border-left-width', 'padding-left',
             'padding-right', 'border-right-width'];
          }
          return properties.inject(dim, function(memo, property) {
            var val = proceed(element, property);
            return val === null ? memo : memo - parseInt(val, 10);
          }) + 'px';
        default: return proceed(element, style);
      }
    }
  );

Element.Methods.readAttribute = Element.Methods.readAttribute.wrap(
    function(proceed, element, attribute) {
      if (attribute === 'title') return element.title;
      return proceed(element, attribute);
    }
  );
}

else if (Prototype.Browser.IE) {
  // IE doesn't report offsets correctly for static elements, so we change them
  // to "relative" to get the values, then change them back.
  Element.Methods.getOffsetParent = Element.Methods.getOffsetParent.wrap(
    function(proceed, element) {
      element = $(element);
      var position = element.getStyle('position');
      if (position !== 'static') return proceed(element);
      element.setStyle({ position: 'relative' });
      var value = proceed(element);
      element.setStyle({ position: position });
      return value;
    }
  );

$w('positionedOffset viewportOffset').each(function(method) {
    Element.Methods[method] = Element.Methods[method].wrap(
      function(proceed, element) {
        element = $(element);
        var position = element.getStyle('position');
        if (position !== 'static') return proceed(element);
        // Trigger hasLayout on the offset parent so that IE6 reports
        // accurate offsetTop and offsetLeft values for position: fixed.
        var offsetParent = element.getOffsetParent();
        if (offsetParent && offsetParent.getStyle('position') === 'fixed')
          offsetParent.setStyle({ zoom: 1 });
        element.setStyle({ position: 'relative' });
        var value = proceed(element);
        element.setStyle({ position: position });
        return value;
      }
    );
  });

Element.Methods.getStyle = function(element, style) {
    element = $(element);
    style = (style == 'float' || style == 'cssFloat') ? 'styleFloat' : style.camelize();
    var value = element.style[style];
    if (!value && element.currentStyle) value = element.currentStyle[style];

if (style == 'opacity') {
      if (value = (element.getStyle('filter') || '').match(/alpha$opacity=(.*)$/))
        if (value[1]) return parseFloat(value[1]) / 100;
      return 1.0;
    }

if (value == 'auto') {
      if ((style == 'width' || style == 'height') && (element.getStyle('display') != 'none'))
        return element['offset' + style.capitalize()] + 'px';
      return null;
    }
    return value;
  };

Element.Methods.setOpacity = function(element, value) {
    function stripAlpha(filter){
      return filter.replace(/alpha$[^$]*\)/gi,'');
    }
    element = $(element);
    var currentStyle = element.currentStyle;
    if ((currentStyle && !currentStyle.hasLayout) ||
      (!currentStyle && element.style.zoom == 'normal'))
        element.style.zoom = 1;

var filter = element.getStyle('filter'), style = element.style;
    if (value == 1 || value === '') {
      (filter = stripAlpha(filter)) ?
        style.filter = filter : style.removeAttribute('filter');
      return element;
    } else if (value < 0.00001) value = 0;
    style.filter = stripAlpha(filter) +
      'alpha(opacity=' + (value * 100) + ')';
    return element;
  };

Element._attributeTranslations = {
    read: {
      names: {
        'class': 'className',
        'for':   'htmlFor'
      },
      values: {
        _getAttr: function(element, attribute) {
          return element.getAttribute(attribute, 2);
        },
        _getAttrNode: function(element, attribute) {
          var node = element.getAttributeNode(attribute);
          return node ? node.value : "";
        },
        _getEv: function(element, attribute) {
          attribute = element.getAttribute(attribute);
          return attribute ? attribute.toString().slice(23, -2) : null;
        },
        _flag: function(element, attribute) {
          return $(element).hasAttribute(attribute) ? attribute : null;
        },
        style: function(element) {
          return element.style.cssText.toLowerCase();
        },
        title: function(element) {
          return element.title;
        }
      }
    }
  };

Element._attributeTranslations.write = {
    names: Object.extend({
      cellpadding: 'cellPadding',
      cellspacing: 'cellSpacing'
    }, Element._attributeTranslations.read.names),
    values: {
      checked: function(element, value) {
        element.checked = !!value;
      },

style: function(element, value) {
        element.style.cssText = value ? value : '';
      }
    }
  };

Element._attributeTranslations.has = {};

$w('colSpan rowSpan vAlign dateTime accessKey tabIndex ' +
      'encType maxLength readOnly longDesc').each(function(attr) {
    Element._attributeTranslations.write.names[attr.toLowerCase()] = attr;
    Element._attributeTranslations.has[attr.toLowerCase()] = attr;
  });

(function(v) {
    Object.extend(v, {
      href:        v._getAttr,
      src:         v._getAttr,
      type:        v._getAttr,
      action:      v._getAttrNode,
      disabled:    v._flag,
      checked:     v._flag,
      readonly:    v._flag,
      multiple:    v._flag,
      onload:      v._getEv,
      onunload:    v._getEv,
      onclick:     v._getEv,
      ondblclick:  v._getEv,
      onmousedown: v._getEv,
      onmouseup:   v._getEv,
      onmouseover: v._getEv,
      onmousemove: v._getEv,
      onmouseout:  v._getEv,
      onfocus:     v._getEv,
      onblur:      v._getEv,
      onkeypress:  v._getEv,
      onkeydown:   v._getEv,
      onkeyup:     v._getEv,
      onsubmit:    v._getEv,
      onreset:     v._getEv,
      onselect:    v._getEv,
      onchange:    v._getEv
    });
  })(Element._attributeTranslations.read.values);
}

else if (Prototype.Browser.Gecko && /rv:1\.8\.0/.test(navigator.userAgent)) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1) ? 0.999999 :
      (value === '') ? '' : (value < 0.00001) ? 0 : value;
    return element;
  };
}

else if (Prototype.Browser.WebKit) {
  Element.Methods.setOpacity = function(element, value) {
    element = $(element);
    element.style.opacity = (value == 1 || value === '') ? '' :
      (value < 0.00001) ? 0 : value;

if (value == 1)
      if(element.tagName == 'IMG' && element.width) {
        element.width++; element.width--;
      } else try {
        var n = document.createTextNode(' ');
        element.appendChild(n);
        element.removeChild(n);
      } catch (e) { }

return element;
  };

// Safari returns margins on body which is incorrect if the child is absolutely
  // positioned.  For performance reasons, redefine Element#cumulativeOffset for
  // KHTML/WebKit only.
  Element.Methods.cumulativeOffset = function(element) {
    var valueT = 0, valueL = 0;
    do {
      valueT += element.offsetTop  || 0;
      valueL += element.offsetLeft || 0;
      if (element.offsetParent == document.body)
        if (Element.getStyle(element, 'position') == 'absolute') break;

element = element.offsetParent;
    } while (element);

return Element._returnOffset(valueL, valueT);
  };
}

if (Prototype.Browser.IE || Prototype.Browser.Opera) {
  // IE and Opera are missing .innerHTML support for TABLE-related and SELECT elements
  Element.Methods.update = function(element, content) {
    element = $(element);

if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) return element.update().insert(content);

content = Object.toHTML(content);
    var tagName = element.tagName.toUpperCase();

if (tagName in Element._insertionTranslations.tags) {
      $A(element.childNodes).each(function(node) { element.removeChild(node) });
      Element._getContentFromAnonymousElement(tagName, content.stripScripts())
        .each(function(node) { element.appendChild(node) });
    }
    else element.innerHTML = content.stripScripts();

content.evalScripts.bind(content).defer();
    return element;
  };
}

if ('outerHTML' in document.createElement('div')) {
  Element.Methods.replace = function(element, content) {
    element = $(element);

if (content && content.toElement) content = content.toElement();
    if (Object.isElement(content)) {
      element.parentNode.replaceChild(content, element);
      return element;
    }

content = Object.toHTML(content);
    var parent = element.parentNode, tagName = parent.tagName.toUpperCase();

if (Element._insertionTranslations.tags[tagName]) {
      var nextSibling = element.next();
      var fragments = Element._getContentFromAnonymousElement(tagName, content.stripScripts());
      parent.removeChild(element);
      if (nextSibling)
        fragments.each(function(node) { parent.insertBefore(node, nextSibling) });
      else
        fragments.each(function(node) { parent.appendChild(node) });
    }
    else element.outerHTML = content.stripScripts();

content.evalScripts.bind(content).defer();
    return element;
  };
}

Element._returnOffset = function(l, t) {
  var result = [l, t];
  result.left = l;
  result.top = t;
  return result;
};

Element._getContentFromAnonymousElement = function(tagName, html) {
  var div = new Element('div'), t = Element._insertionTranslations.tags[tagName];
  if (t) {
    div.innerHTML = t[0] + html + t[1];
    t[2].times(function() { div = div.firstChild });
  } else div.innerHTML = html;
  return $A(div.childNodes);
};

Element._insertionTranslations = {
  before: function(element, node) {
    element.parentNode.insertBefore(node, element);
  },
  top: function(element, node) {
    element.insertBefore(node, element.firstChild);
  },
  bottom: function(element, node) {
    element.appendChild(node);
  },
  after: function(element, node) {
    element.parentNode.insertBefore(node, element.nextSibling);
  },
  tags: {
    TABLE:  ['<table>',                '</table>',                   1],
    TBODY:  ['<table><tbody>',         '</tbody></table>',           2],
    TR:     ['<table><tbody><tr>',     '</tr></tbody></table>',      3],
    TD:     ['<table><tbody><tr><td>', '</td></tr></tbody></table>', 4],
    SELECT: ['<select>',               '</select>',                  1]
  }
};

(function() {
  Object.extend(this.tags, {
    THEAD: this.tags.TBODY,
    TFOOT: this.tags.TBODY,
    TH:    this.tags.TD
  });
}).call(Element._insertionTranslations);

Element.Methods.Simulated = {
  hasAttribute: function(element, attribute) {
    attribute = Element._attributeTranslations.has[attribute] || attribute;
    var node = $(element).getAttributeNode(attribute);
    return node && node.specified;
  }
};

Element.Methods.ByTag = { };

Object.extend(Element, Element.Methods);

if (!Prototype.BrowserFeatures.ElementExtensions &&
    document.createElement('div').__proto__) {
  window.HTMLElement = { };
  window.HTMLElement.prototype = document.createElement('div').__proto__;
  Prototype.BrowserFeatures.ElementExtensions = true;
}

Element.extend = (function() {
  if (Prototype.BrowserFeatures.SpecificElementExtensions)
    return Prototype.K;

var Methods = { }, ByTag = Element.Methods.ByTag;

var extend = Object.extend(function(element) {
    if (!element || element._extendedByPrototype ||
        element.nodeType != 1 || element == window) return element;

var methods = Object.clone(Methods),
      tagName = element.tagName, property, value;

// extend methods for specific tags
    if (ByTag[tagName]) Object.extend(methods, ByTag[tagName]);

for (property in methods) {
      value = methods[property];
      if (Object.isFunction(value) && !(property in element))
        element[property] = value.methodize();
    }

element._extendedByPrototype = Prototype.emptyFunction;
    return element;

}, {
    refresh: function() {
      // extend methods for all tags (Safari doesn't need this)
      if (!Prototype.BrowserFeatures.ElementExtensions) {
        Object.extend(Methods, Element.Methods);
        Object.extend(Methods, Element.Methods.Simulated);
      }
    }
  });

extend.refresh();
  return extend;
})();

Element.hasAttribute = function(element, attribute) {
  if (element.hasAttribute) return element.hasAttribute(attribute);
  return Element.Methods.Simulated.hasAttribute(element, attribute);
};

Element.addMethods = function(methods) {
  var F = Prototype.BrowserFeatures, T = Element.Methods.ByTag;

if (!methods) {
    Object.extend(Form, Form.Methods);
    Object.extend(Form.Element, Form.Element.Methods);
    Object.extend(Element.Methods.ByTag, {
      "FORM":     Object.clone(Form.Methods),
      "INPUT":    Object.clone(Form.Element.Methods),
      "SELECT":   Object.clone(Form.Element.Methods),
      "TEXTAREA": Object.clone(Form.Element.Methods)
    });
  }

if (arguments.length == 2) {
    var tagName = methods;
    methods = arguments[1];
  }

if (!tagName) Object.extend(Element.Methods, methods || { });
  else {
    if (Object.isArray(tagName)) tagName.each(extend);
    else extend(tagName);
  }

function extend(tagName) {
    tagName = tagName.toUpperCase();
    if (!Element.Methods.ByTag[tagName])
      Element.Methods.ByTag[tagName] = { };
    Object.extend(Element.Methods.ByTag[tagName], methods);
  }

function copy(methods, destination, onlyIfAbsent) {
    onlyIfAbsent = onlyIfAbsent || false;
    for (var property in methods) {
      var value = methods[property];
      if (!Object.isFunction(value)) continue;
      if (!onlyIfAbsent || !(property in destination))
        destination[property] = value.methodize();
    }
  }

function findDOMClass(tagName) {
    var klass;
    var trans = {
      "OPTGROUP": "OptGroup", "TEXTAREA": "TextArea", "P": "Paragraph",
      "FIELDSET": "FieldSet", "UL": "UList", "OL": "OList", "DL": "DList",
      "DIR": "Directory", "H1": "Heading", "H2": "Heading", "H3": "Heading",
      "H4": "Heading", "H5": "Heading", "H6": "Heading", "Q": "Quote",
      "INS": "Mod", "DEL": "Mod", "A": "Anchor", "IMG": "Image", "CAPTION":
      "TableCaption", "COL": "TableCol", "COLGROUP": "TableCol", "THEAD":
      "TableSection", "TFOOT": "TableSection", "TBODY": "TableSection", "TR":
      "TableRow", "TH": "TableCell", "TD": "TableCell", "FRAMESET":
      "FrameSet", "IFRAME": "IFrame"
    };
    if (trans[tagName]) klass = 'HTML' + trans[tagName] + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName + 'Element';
    if (window[klass]) return window[klass];
    klass = 'HTML' + tagName.capitalize() + 'Element';
    if (window[klass]) return window[klass];

window[klass] = { };
    window[klass].prototype = document.createElement(tagName).__proto__;
    return window[klass];
  }

if (F.ElementExtensions) {
    copy(Element.Methods, HTMLElement.prototype);
    copy(Element.Methods.Simulated, HTMLElement.prototype, true);
  }

if (F.SpecificElementExtensions) {
    for (var tag in Element.Methods.ByTag) {
      var klass = findDOMClass(tag);
      if (Object.isUndefined(klass)) continue;
      copy(T[tag], klass.prototype);
    }
  }

Object.extend(Element, Element.Methods);
  delete Element.ByTag;

if (Element.extend.refresh) Element.extend.refresh();
  Element.cache = { };
};

getWidth: function() {
    return this.getDimensions().width;
  },

getHeight: function() {
    return this.getDimensions().height;
  },

getScrollOffsets: function() {
    return Element._returnOffset(
      window.pageXOffset || document.documentElement.scrollLeft || document.body.scrollLeft,
      window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop);
  }
};
/* Portions of the Selector class are derived from Jack Slocum’s DomQuery,
 * part of YUI-Ext version 0.40, distributed under the terms of an MIT-style
 * license.  Please see http://www.yui-ext.com/ for more information. */

var Selector = Class.create({
  initialize: function(expression) {
    this.expression = expression.strip();
    this.compileMatcher();
  },

shouldUseXPath: function() {
    if (!Prototype.BrowserFeatures.XPath) return false;

var e = this.expression;

// Safari 3 chokes on :*-of-type and :empty
    if (Prototype.Browser.WebKit &&
     (e.include("-of-type") || e.include(":empty")))
      return false;

// XPath can't do namespaced attributes, nor can it read
    // the "checked" property from DOM nodes
    if ((/(\[[\w-]*?:|:checked)/).test(this.expression))
      return false;

return true;
  },

compileMatcher: function() {
    if (this.shouldUseXPath())
      return this.compileXPathMatcher();

var e = this.expression, ps = Selector.patterns, h = Selector.handlers,
        c = Selector.criteria, le, p, m;

if (Selector._cache[e]) {
      this.matcher = Selector._cache[e];
      return;
    }

this.matcher = ["this.matcher = function(root) {",
                    "var r = root, h = Selector.handlers, c = false, n;"];

while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          this.matcher.push(Object.isFunction(c[i]) ? c[i](m) :
           new Template(c[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

this.matcher.push("return h.unique(n);\n}");
    eval(this.matcher.join('\n'));
    Selector._cache[this.expression] = this.matcher;
  },

compileXPathMatcher: function() {
    var e = this.expression, ps = Selector.patterns,
        x = Selector.xpath, le, m;

if (Selector._cache[e]) {
      this.xpath = Selector._cache[e]; return;
    }

this.matcher = ['.//*'];
    while (e && le != e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        if (m = e.match(ps[i])) {
          this.matcher.push(Object.isFunction(x[i]) ? x[i](m) :
            new Template(x[i]).evaluate(m));
          e = e.replace(m[0], '');
          break;
        }
      }
    }

this.xpath = this.matcher.join('');
    Selector._cache[this.expression] = this.xpath;
  },

findElements: function(root) {
    root = root || document;
    if (this.xpath) return document._getElementsByXPath(this.xpath, root);
    return this.matcher(root);
  },

match: function(element) {
    this.tokens = [];

var e = this.expression, ps = Selector.patterns, as = Selector.assertions;
    var le, p, m;

while (e && le !== e && (/\S/).test(e)) {
      le = e;
      for (var i in ps) {
        p = ps[i];
        if (m = e.match(p)) {
          // use the Selector.assertions methods unless the selector
          // is too complex.
          if (as[i]) {
            this.tokens.push([i, Object.clone(m)]);
            e = e.replace(m[0], '');
          } else {
            // reluctantly do a document-wide search
            // and look for a match in the array
            return this.findElements(document).include(element);
          }
        }
      }
    }

var match = true, name, matches;
    for (var i = 0, token; token = this.tokens[i]; i++) {
      name = token[0], matches = token[1];
      if (!Selector.assertions[name](element, matches)) {
        match = false; break;
      }
    }

return match;
  },

toString: function() {
    return this.expression;
  },

inspect: function() {
    return "#<Selector:" + this.expression.inspect() + ">";
  }
});

Object.extend(Selector, {
  _cache: { },

xpath: {
    descendant:   "//*",
    child:        "/*",
    adjacent:     "/following-sibling::*[1]",
    laterSibling: '/following-sibling::*',
    tagName:      function(m) {
      if (m[1] == '*') return '';
      return "[local-name()='" + m[1].toLowerCase() +
             "' or local-name()='" + m[1].toUpperCase() + "']";
    },
    className:    "[contains(concat(' ', @class, ' '), ' #{1} ')]",
    id:           "[@id='#{1}']",
    attrPresence: function(m) {
      m[1] = m[1].toLowerCase();
      return new Template("[@#{1}]").evaluate(m);
    },
    attr: function(m) {
      m[1] = m[1].toLowerCase();
      m[3] = m[5] || m[6];
      return new Template(Selector.xpath.operators[m[2]]).evaluate(m);
    },
    pseudo: function(m) {
      var h = Selector.xpath.pseudos[m[1]];
      if (!h) return '';
      if (Object.isFunction(h)) return h(m);
      return new Template(Selector.xpath.pseudos[m[1]]).evaluate(m);
    },
    operators: {
      '=':  "[@#{1}='#{3}']",
      '!=': "[@#{1}!='#{3}']",
      '^=': "[starts-with(@#{1}, '#{3}')]",
      '$=': "[substring(@#{1}, (string-length(@#{1}) - string-length('#{3}') + 1))='#{3}']",
      '*=': "[contains(@#{1}, '#{3}')]",
      '~=': "[contains(concat(' ', @#{1}, ' '), ' #{3} ')]",
      '|=': "[contains(concat('-', @#{1}, '-'), '-#{3}-')]"
    },
    pseudos: {
      'first-child': '[not(preceding-sibling::*)]',
      'last-child':  '[not(following-sibling::*)]',
      'only-child':  '[not(preceding-sibling::* or following-sibling::*)]',
      'empty':       "[count(*) = 0 and (count(text()) = 0 or translate(text(), ' \t\r\n', '') = '')]",
      'checked':     "[@checked]",
      'disabled':    "[@disabled]",
      'enabled':     "[not(@disabled)]",
      'not': function(m) {
        var e = m[6], p = Selector.patterns,
            x = Selector.xpath, le, v;

criteria: {
    tagName:      'n = h.tagName(n, r, "#{1}", c);      c = false;',
    className:    'n = h.className(n, r, "#{1}", c);    c = false;',
    id:           'n = h.id(n, r, "#{1}", c);           c = false;',
    attrPresence: 'n = h.attrPresence(n, r, "#{1}", c); c = false;',
    attr: function(m) {
      m[3] = (m[5] || m[6]);
      return new Template('n = h.attr(n, r, "#{1}", "#{3}", "#{2}", c); c = false;').evaluate(m);
    },
    pseudo: function(m) {
      if (m[6]) m[6] = m[6].replace(/"/g, '\\"');
      return new Template('n = h.pseudo(n, "#{1}", "#{6}", r, c); c = false;').evaluate(m);
    },
    descendant:   'c = "descendant";',
    child:        'c = "child";',
    adjacent:     'c = "adjacent";',
    laterSibling: 'c = "laterSibling";'
  },

patterns: {
    // combinators must be listed first
    // (and descendant needs to be last combinator)
    laterSibling: /^\s*~\s*/,
    child:        /^\s*>\s*/,
    adjacent:     /^\s*\+\s*/,
    descendant:   /^\s/,

// selectors follow
    tagName:      /^\s*(\*|[\w\-]+)(\b|$)?/,
    id:           /^#([\w\-\*]+)(\b|$)/,
    className:    /^\.([\w\-\*]+)(\b|$)/,
    pseudo:
/^:((first|last|nth|nth-last|only)(-child|-of-type)|empty|checked|(en|dis)abled|not)($(.*?)$)?(\b|$|(?=\s|[:+~>]))/,
    attrPresence: /^\[([\w]+)\]/,
    attr:         /\[((?:[\w-]*:)?[\w-]+)\s*(?:([!^$*~|]?=)\s*((['"])([^\4]*?)\4|([^'"][^\]]*?)))?\]/
  },

// for Selector.match and Element#match
  assertions: {
    tagName: function(element, matches) {
      return matches[1].toUpperCase() == element.tagName.toUpperCase();
    },

className: function(element, matches) {
      return Element.hasClassName(element, matches[1]);
    },

id: function(element, matches) {
      return element.id === matches[1];
    },

attrPresence: function(element, matches) {
      return Element.hasAttribute(element, matches[1]);
    },

attr: function(element, matches) {
      var nodeValue = Element.readAttribute(element, matches[1]);
      return nodeValue && Selector.operators[matches[2]](nodeValue, matches[5] || matches[6]);
    }
  },

handlers: {
    // UTILITY FUNCTIONS
    // joins two collections
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        a.push(node);
      return a;
    },

// marks an array of nodes for counting
    mark: function(nodes) {
      var _true = Prototype.emptyFunction;
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = _true;
      return nodes;
    },

unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node._countedByPrototype = undefined;
      return nodes;
    },

// mark each child node with its position (for nth calls)
    // "ofType" flag indicates whether we're indexing for nth-of-type
    // rather than nth-child
    index: function(parentNode, reverse, ofType) {
      parentNode._countedByPrototype = Prototype.emptyFunction;
      if (reverse) {
        for (var nodes = parentNode.childNodes, i = nodes.length - 1, j = 1; i >= 0; i--) {
          var node = nodes[i];
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
        }
      } else {
        for (var i = 0, j = 1, nodes = parentNode.childNodes; node = nodes[i]; i++)
          if (node.nodeType == 1 && (!ofType || node._countedByPrototype)) node.nodeIndex = j++;
      }
    },

// filters out duplicates and extends all nodes
    unique: function(nodes) {
      if (nodes.length == 0) return nodes;
      var results = [], n;
      for (var i = 0, l = nodes.length; i < l; i++)
        if (!(n = nodes[i])._countedByPrototype) {
          n._countedByPrototype = Prototype.emptyFunction;
          results.push(Element.extend(n));
        }
      return Selector.handlers.unmark(results);
    },

// COMBINATOR FUNCTIONS
    descendant: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, node.getElementsByTagName('*'));
      return results;
    },

child: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        for (var j = 0, child; child = node.childNodes[j]; j++)
          if (child.nodeType == 1 && child.tagName != '!') results.push(child);
      }
      return results;
    },

adjacent: function(nodes) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        var next = this.nextElementSibling(node);
        if (next) results.push(next);
      }
      return results;
    },

laterSibling: function(nodes) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        h.concat(results, Element.nextSiblings(node));
      return results;
    },

nextElementSibling: function(node) {
      while (node = node.nextSibling)
       if (node.nodeType == 1) return node;
      return null;
    },

previousElementSibling: function(node) {
      while (node = node.previousSibling)
        if (node.nodeType == 1) return node;
      return null;
    },

// TOKEN FUNCTIONS
    tagName: function(nodes, root, tagName, combinator) {
      var uTagName = tagName.toUpperCase();
      var results = [], h = Selector.handlers;
      if (nodes) {
        if (combinator) {
          // fastlane for ordinary descendant combinators
          if (combinator == "descendant") {
            for (var i = 0, node; node = nodes[i]; i++)
              h.concat(results, node.getElementsByTagName(tagName));
            return results;
          } else nodes = this[combinator](nodes);
          if (tagName == "*") return nodes;
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.tagName.toUpperCase() === uTagName) results.push(node);
        return results;
      } else return root.getElementsByTagName(tagName);
    },

id: function(nodes, root, id, combinator) {
      var targetNode = $(id), h = Selector.handlers;
      if (!targetNode) return [];
      if (!nodes && root == document) return [targetNode];
      if (nodes) {
        if (combinator) {
          if (combinator == 'child') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (targetNode.parentNode == node) return [targetNode];
          } else if (combinator == 'descendant') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Element.descendantOf(targetNode, node)) return [targetNode];
          } else if (combinator == 'adjacent') {
            for (var i = 0, node; node = nodes[i]; i++)
              if (Selector.handlers.previousElementSibling(targetNode) == node)
                return [targetNode];
          } else nodes = h[combinator](nodes);
        }
        for (var i = 0, node; node = nodes[i]; i++)
          if (node == targetNode) return [targetNode];
        return [];
      }
      return (targetNode && Element.descendantOf(targetNode, root)) ? [targetNode] : [];
    },

className: function(nodes, root, className, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      return Selector.handlers.byClassName(nodes, root, className);
    },

byClassName: function(nodes, root, className) {
      if (!nodes) nodes = Selector.handlers.descendant([root]);
      var needle = ' ' + className + ' ';
      for (var i = 0, results = [], node, nodeClassName; node = nodes[i]; i++) {
        nodeClassName = node.className;
        if (nodeClassName.length == 0) continue;
        if (nodeClassName == className || (' ' + nodeClassName + ' ').include(needle))
          results.push(node);
      }
      return results;
    },

attrPresence: function(nodes, root, attr, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var results = [];
      for (var i = 0, node; node = nodes[i]; i++)
        if (Element.hasAttribute(node, attr)) results.push(node);
      return results;
    },

attr: function(nodes, root, attr, value, operator, combinator) {
      if (!nodes) nodes = root.getElementsByTagName("*");
      if (nodes && combinator) nodes = this[combinator](nodes);
      var handler = Selector.operators[operator], results = [];
      for (var i = 0, node; node = nodes[i]; i++) {
        var nodeValue = Element.readAttribute(node, attr);
        if (nodeValue === null) continue;
        if (handler(nodeValue, value)) results.push(node);
      }
      return results;
    },

pseudo: function(nodes, name, value, root, combinator) {
      if (nodes && combinator) nodes = this[combinator](nodes);
      if (!nodes) nodes = root.getElementsByTagName("*");
      return Selector.pseudos[name](nodes, value, root);
    }
  },

pseudos: {
    'first-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.previousElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'last-child': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        if (Selector.handlers.nextElementSibling(node)) continue;
          results.push(node);
      }
      return results;
    },
    'only-child': function(nodes, value, root) {
      var h = Selector.handlers;
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!h.previousElementSibling(node) && !h.nextElementSibling(node))
          results.push(node);
      return results;
    },
    'nth-child':        function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root);
    },
    'nth-last-child':   function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true);
    },
    'nth-of-type':      function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, false, true);
    },
    'nth-last-of-type': function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, formula, root, true, true);
    },
    'first-of-type':    function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, false, true);
    },
    'last-of-type':     function(nodes, formula, root) {
      return Selector.pseudos.nth(nodes, "1", root, true, true);
    },
    'only-of-type':     function(nodes, formula, root) {
      var p = Selector.pseudos;
      return p['last-of-type'](p['first-of-type'](nodes, formula, root), formula, root);
    },

// handles the an+b logic
    getIndices: function(a, b, total) {
      if (a == 0) return b > 0 ? [b] : [];
      return $R(1, total).inject([], function(memo, i) {
        if (0 == (i - b) % a && (i - b) / a >= 0) memo.push(i);
        return memo;
      });
    },

// handles nth(-last)-child, nth(-last)-of-type, and (first|last)-of-type
    nth: function(nodes, formula, root, reverse, ofType) {
      if (nodes.length == 0) return [];
      if (formula == 'even') formula = '2n+0';
      if (formula == 'odd')  formula = '2n+1';
      var h = Selector.handlers, results = [], indexed = [], m;
      h.mark(nodes);
      for (var i = 0, node; node = nodes[i]; i++) {
        if (!node.parentNode._countedByPrototype) {
          h.index(node.parentNode, reverse, ofType);
          indexed.push(node.parentNode);
        }
      }
      if (formula.match(/^\d+$/)) { // just a number
        formula = Number(formula);
        for (var i = 0, node; node = nodes[i]; i++)
          if (node.nodeIndex == formula) results.push(node);
      } else if (m = formula.match(/^(-?\d*)?n(([+-])(\d+))?/)) { // an+b
        if (m[1] == "-") m[1] = -1;
        var a = m[1] ? Number(m[1]) : 1;
        var b = m[2] ? Number(m[2]) : 0;
        var indices = Selector.pseudos.getIndices(a, b, nodes.length);
        for (var i = 0, node, l = indices.length; node = nodes[i]; i++) {
          for (var j = 0; j < l; j++)
            if (node.nodeIndex == indices[j]) results.push(node);
        }
      }
      h.unmark(nodes);
      h.unmark(indexed);
      return results;
    },

'empty': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++) {
        // IE treats comments as element nodes
        if (node.tagName == '!' || (node.firstChild && !node.innerHTML.match(/^\s*$/))) continue;
        results.push(node);
      }
      return results;
    },

'not': function(nodes, selector, root) {
      var h = Selector.handlers, selectorType, m;
      var exclusions = new Selector(selector).findElements(root);
      h.mark(exclusions);
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node._countedByPrototype) results.push(node);
      h.unmark(exclusions);
      return results;
    },

'enabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (!node.disabled) results.push(node);
      return results;
    },

'disabled': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.disabled) results.push(node);
      return results;
    },

'checked': function(nodes, value, root) {
      for (var i = 0, results = [], node; node = nodes[i]; i++)
        if (node.checked) results.push(node);
      return results;
    }
  },

operators: {
    '=':  function(nv, v) { return nv == v; },
    '!=': function(nv, v) { return nv != v; },
    '^=': function(nv, v) { return nv.startsWith(v); },
    '$=': function(nv, v) { return nv.endsWith(v); },
    '*=': function(nv, v) { return nv.include(v); },
    '~=': function(nv, v) { return (' ' + nv + ' ').include(' ' + v + ' '); },
    '|=': function(nv, v) { return ('-' + nv.toUpperCase() + '-').include('-' + v.toUpperCase() + '-'); }
  },

split: function(expression) {
    var expressions = [];
    expression.scan(/(([\w#:.~>+()\s-]+|\*|\[.*?\])+)\s*(,|$)/, function(m) {
      expressions.push(m[1].strip());
    });
    return expressions;
  },

matchElements: function(elements, expression) {
    var matches = $$(expression), h = Selector.handlers;
    h.mark(matches);
    for (var i = 0, results = [], element; element = elements[i]; i++)
      if (element._countedByPrototype) results.push(element);
    h.unmark(matches);
    return results;
  },

findElement: function(elements, expression, index) {
    if (Object.isNumber(expression)) {
      index = expression; expression = false;
    }
    return Selector.matchElements(elements, expression || '*')[index || 0];
  },

findChildElements: function(element, expressions) {
    expressions = Selector.split(expressions.join(','));
    var results = [], h = Selector.handlers;
    for (var i = 0, l = expressions.length, selector; i < l; i++) {
      selector = new Selector(expressions[i].strip());
      h.concat(results, selector.findElements(element));
    }
    return (l > 1) ? h.unique(results) : results;
  }
});

if (Prototype.Browser.IE) {
  Object.extend(Selector.handlers, {
    // IE returns comment nodes on getElementsByTagName("*").
    // Filter them out.
    concat: function(a, b) {
      for (var i = 0, node; node = b[i]; i++)
        if (node.tagName !== "!") a.push(node);
      return a;
    },

// IE improperly serializes _countedByPrototype in (inner|outer)HTML.
    unmark: function(nodes) {
      for (var i = 0, node; node = nodes[i]; i++)
        node.removeAttribute('_countedByPrototype');
      return nodes;
    }
  });
}

function $$() {
  return Selector.findChildElements(document, $A(arguments));
}
var Form = {
  reset: function(form) {
    $(form).reset();
    return form;
  },

serializeElements: function(elements, options) {
    if (typeof options != 'object') options = { hash: !!options };
    else if (Object.isUndefined(options.hash)) options.hash = true;
    var key, value, submitted = false, submit = options.submit;

return options.hash ? data : Object.toQueryString(data);
  }
};

Form.Methods = {
  serialize: function(form, options) {
    return Form.serializeElements(Form.getElements(form), options);
  },

getElements: function(form) {
    return $A($(form).getElementsByTagName('*')).inject([],
      function(elements, child) {
        if (Form.Element.Serializers[child.tagName.toLowerCase()])
          elements.push(Element.extend(child));
        return elements;
      }
    );
  },

getInputs: function(form, typeName, name) {
    form = $(form);
    var inputs = form.getElementsByTagName('input');

if (!typeName && !name) return $A(inputs).map(Element.extend);

for (var i = 0, matchingInputs = [], length = inputs.length; i < length; i++) {
      var input = inputs[i];
      if ((typeName && input.type != typeName) || (name && input.name != name))
        continue;
      matchingInputs.push(Element.extend(input));
    }

return matchingInputs;
  },

disable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('disable');
    return form;
  },

enable: function(form) {
    form = $(form);
    Form.getElements(form).invoke('enable');
    return form;
  },

findFirstElement: function(form) {
    var elements = $(form).getElements().findAll(function(element) {
      return 'hidden' != element.type && !element.disabled;
    });
    var firstByIndex = elements.findAll(function(element) {
      return element.hasAttribute('tabIndex') && element.tabIndex >= 0;
    }).sortBy(function(element) { return element.tabIndex }).first();

return firstByIndex ? firstByIndex : elements.find(function(element) {
      return ['input', 'select', 'textarea'].include(element.tagName.toLowerCase());
    });
  },

focusFirstElement: function(form) {
    form = $(form);
    form.findFirstElement().activate();
    return form;
  },

request: function(form, options) {
    form = $(form), options = Object.clone(options || { });

var params = options.parameters, action = form.readAttribute('action') || '';
    if (action.blank()) action = window.location.href;
    options.parameters = form.serialize(true);

if (params) {
      if (Object.isString(params)) params = params.toQueryParams();
      Object.extend(options.parameters, params);
    }

if (form.hasAttribute('method') && !options.method)
      options.method = form.method;

return new Ajax.Request(action, options);
  }
};

/*--------------------------------------------------------------------------*/

Form.Element = {
  focus: function(element) {
    $(element).focus();
    return element;
  },

select: function(element) {
    $(element).select();
    return element;
  }
};

Form.Element.Methods = {
  serialize: function(element) {
    element = $(element);
    if (!element.disabled && element.name) {
      var value = element.getValue();
      if (value != undefined) {
        var pair = { };
        pair[element.name] = value;
        return Object.toQueryString(pair);
      }
    }
    return '';
  },

getValue: function(element) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    return Form.Element.Serializers[method](element);
  },

setValue: function(element, value) {
    element = $(element);
    var method = element.tagName.toLowerCase();
    Form.Element.Serializers[method](element, value);
    return element;
  },

clear: function(element) {
    $(element).value = '';
    return element;
  },

present: function(element) {
    return $(element).value != '';
  },

activate: function(element) {
    element = $(element);
    try {
      element.focus();
      if (element.select && (element.tagName.toLowerCase() != 'input' ||
          !['button', 'reset', 'submit'].include(element.type)))
        element.select();
    } catch (e) { }
    return element;
  },

disable: function(element) {
    element = $(element);
    element.blur();
    element.disabled = true;
    return element;
  },

enable: function(element) {
    element = $(element);
    element.disabled = false;
    return element;
  }
};

/*--------------------------------------------------------------------------*/

var Field = Form.Element;
var $F = Form.Element.Methods.getValue;

/*--------------------------------------------------------------------------*/

Form.Element.Serializers = {
  input: function(element, value) {
    switch (element.type.toLowerCase()) {
      case 'checkbox':
      case 'radio':
        return Form.Element.Serializers.inputSelector(element, value);
      default:
        return Form.Element.Serializers.textarea(element, value);
    }
  },

inputSelector: function(element, value) {
    if (Object.isUndefined(value)) return element.checked ? element.value : null;
    else element.checked = !!value;
  },

textarea: function(element, value) {
    if (Object.isUndefined(value)) return element.value;
    else element.value = value;
  },

select: function(element, index) {
    if (Object.isUndefined(index))
      return this[element.type == 'select-one' ?
        'selectOne' : 'selectMany'](element);
    else {
      var opt, value, single = !Object.isArray(index);
      for (var i = 0, length = element.length; i < length; i++) {
        opt = element.options[i];
        value = this.optionValue(opt);
        if (single) {
          if (value == index) {
            opt.selected = true;
            return;
          }
        }
        else opt.selected = index.include(value);
      }
    }
  },

selectOne: function(element) {
    var index = element.selectedIndex;
    return index >= 0 ? this.optionValue(element.options[index]) : null;
  },

selectMany: function(element) {
    var values, length = element.length;
    if (!length) return null;

for (var i = 0, values = []; i < length; i++) {
      var opt = element.options[i];
      if (opt.selected) values.push(this.optionValue(opt));
    }
    return values;
  },

optionValue: function(opt) {
    // extend element because hasAttribute may not be native
    return Element.extend(opt).hasAttribute('value') ? opt.value : opt.text;
  }
};

/*--------------------------------------------------------------------------*/

Abstract.TimedObserver = Class.create(PeriodicalExecuter, {
  initialize: function($super, element, frequency, callback) {
    $super(callback, frequency);
    this.element   = $(element);
    this.lastValue = this.getValue();
  },

execute: function() {
    var value = this.getValue();
    if (Object.isString(this.lastValue) && Object.isString(value) ?
        this.lastValue != value : String(this.lastValue) != String(value)) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  }
});

Form.Element.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.Observer = Class.create(Abstract.TimedObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});

/*--------------------------------------------------------------------------*/

Abstract.EventObserver = Class.create({
  initialize: function(element, callback) {
    this.element  = $(element);
    this.callback = callback;

this.lastValue = this.getValue();
    if (this.element.tagName.toLowerCase() == 'form')
      this.registerFormCallbacks();
    else
      this.registerCallback(this.element);
  },

onElementEvent: function() {
    var value = this.getValue();
    if (this.lastValue != value) {
      this.callback(this.element, value);
      this.lastValue = value;
    }
  },

registerFormCallbacks: function() {
    Form.getElements(this.element).each(this.registerCallback, this);
  },

registerCallback: function(element) {
    if (element.type) {
      switch (element.type.toLowerCase()) {
        case 'checkbox':
        case 'radio':
          Event.observe(element, 'click', this.onElementEvent.bind(this));
          break;
        default:
          Event.observe(element, 'change', this.onElementEvent.bind(this));
          break;
      }
    }
  }
});

Form.Element.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.Element.getValue(this.element);
  }
});

Form.EventObserver = Class.create(Abstract.EventObserver, {
  getValue: function() {
    return Form.serialize(this.element);
  }
});
if (!window.Event) var Event = { };

Object.extend(Event, {
  KEY_BACKSPACE: 8,
  KEY_TAB:       9,
  KEY_RETURN:   13,
  KEY_ESC:      27,
  KEY_LEFT:     37,
  KEY_UP:       38,
  KEY_RIGHT:    39,
  KEY_DOWN:     40,
  KEY_DELETE:   46,
  KEY_HOME:     36,
  KEY_END:      35,
  KEY_PAGEUP:   33,
  KEY_PAGEDOWN: 34,
  KEY_INSERT:   45,

cache: { },

relatedTarget: function(event) {
    var element;
    switch(event.type) {
      case 'mouseover': element = event.fromElement; break;
      case 'mouseout':  element = event.toElement;   break;
      default: return null;
    }
    return Element.extend(element);
  }
});

Event.Methods = (function() {
  var isButton;

if (Prototype.Browser.IE) {
    var buttonMap = { 0: 1, 1: 4, 2: 2 };
    isButton = function(event, code) {
      return event.button == buttonMap[code];
    };

} else if (Prototype.Browser.WebKit) {
    isButton = function(event, code) {
      switch (code) {
        case 0: return event.which == 1 && !event.metaKey;
        case 1: return event.which == 1 && event.metaKey;
        default: return false;
      }
    };

} else {
    isButton = function(event, code) {
      return event.which ? (event.which === code + 1) : (event.button === code);
    };
  }

return {
    isLeftClick:   function(event) { return isButton(event, 0) },
    isMiddleClick: function(event) { return isButton(event, 1) },
    isRightClick:  function(event) { return isButton(event, 2) },

element: function(event) {
      var node = Event.extend(event).target;
      return Element.extend(node.nodeType == Node.TEXT_NODE ? node.parentNode : node);
    },

findElement: function(event, expression) {
      var element = Event.element(event);
      if (!expression) return element;
      var elements = [element].concat(element.ancestors());
      return Selector.findElement(elements, expression, 0);
    },

pointer: function(event) {
      return {
        x: event.pageX || (event.clientX +
          (document.documentElement.scrollLeft || document.body.scrollLeft)),
        y: event.pageY || (event.clientY +
          (document.documentElement.scrollTop || document.body.scrollTop))
      };
    },

pointerX: function(event) { return Event.pointer(event).x },
    pointerY: function(event) { return Event.pointer(event).y },

stop: function(event) {
      Event.extend(event);
      event.preventDefault();
      event.stopPropagation();
      event.stopped = true;
    }
  };
})();

Event.extend = (function() {
  var methods = Object.keys(Event.Methods).inject({ }, function(m, name) {
    m[name] = Event.Methods[name].methodize();
    return m;
  });

if (Prototype.Browser.IE) {
    Object.extend(methods, {
      stopPropagation: function() { this.cancelBubble = true },
      preventDefault:  function() { this.returnValue = false },
      inspect: function() { return "[object Event]" }
    });

return function(event) {
      if (!event) return false;
      if (event._extendedByPrototype) return event;

event._extendedByPrototype = Prototype.emptyFunction;
      var pointer = Event.pointer(event);
      Object.extend(event, {
        target: event.srcElement,
        relatedTarget: Event.relatedTarget(event),
        pageX:  pointer.x,
        pageY:  pointer.y
      });
      return Object.extend(event, methods);
    };

} else {
    Event.prototype = Event.prototype || document.createEvent("HTMLEvents").__proto__;
    Object.extend(Event.prototype, methods);
    return Prototype.K;
  }
})();

Object.extend(Event, (function() {
  var cache = Event.cache;

function getEventID(element) {
    if (element._prototypeEventID) return element._prototypeEventID[0];
    arguments.callee.id = arguments.callee.id || 1;
    return element._prototypeEventID = [++arguments.callee.id];
  }

function getDOMEventName(eventName) {
    if (eventName && eventName.include(':')) return "dataavailable";
    return eventName;
  }

function getCacheForID(id) {
    return cache[id] = cache[id] || { };
  }

function getWrappersForEventName(id, eventName) {
    var c = getCacheForID(id);
    return c[eventName] = c[eventName] || [];
  }

function createWrapper(element, eventName, handler) {
    var id = getEventID(element);
    var c = getWrappersForEventName(id, eventName);
    if (c.pluck("handler").include(handler)) return false;

var wrapper = function(event) {
      if (!Event || !Event.extend ||
        (event.eventName && event.eventName != eventName))
          return false;

Event.extend(event);
      handler.call(element, event);
    };

wrapper.handler = handler;
    c.push(wrapper);
    return wrapper;
  }

function findWrapper(id, eventName, handler) {
    var c = getWrappersForEventName(id, eventName);
    return c.find(function(wrapper) { return wrapper.handler == handler });
  }

function destroyWrapper(id, eventName, handler) {
    var c = getCacheForID(id);
    if (!c[eventName]) return false;
    c[eventName] = c[eventName].without(findWrapper(id, eventName, handler));
  }

function destroyCache() {
    for (var id in cache)
      for (var eventName in cache[id])
        cache[id][eventName] = null;
  }

if (window.attachEvent) {
    window.attachEvent("onunload", destroyCache);
  }

return {
    observe: function(element, eventName, handler) {
      element = $(element);
      var name = getDOMEventName(eventName);

var wrapper = createWrapper(element, eventName, handler);
      if (!wrapper) return element;

if (element.addEventListener) {
        element.addEventListener(name, wrapper, false);
      } else {
        element.attachEvent("on" + name, wrapper);
      }

return element;
    },

stopObserving: function(element, eventName, handler) {
      element = $(element);
      var id = getEventID(element), name = getDOMEventName(eventName);

if (!handler && eventName) {
        getWrappersForEventName(id, eventName).each(function(wrapper) {
          element.stopObserving(eventName, wrapper.handler);
        });
        return element;

} else if (!eventName) {
        Object.keys(getCacheForID(id)).each(function(eventName) {
          element.stopObserving(eventName);
        });
        return element;
      }

var wrapper = findWrapper(id, eventName, handler);
      if (!wrapper) return element;

if (element.removeEventListener) {
        element.removeEventListener(name, wrapper, false);
      } else {
        element.detachEvent("on" + name, wrapper);
      }

destroyWrapper(id, eventName, handler);

return element;
    },

fire: function(element, eventName, memo) {
      element = $(element);
      if (element == document && document.createEvent && !element.dispatchEvent)
        element = document.documentElement;

var event;
      if (document.createEvent) {
        event = document.createEvent("HTMLEvents");
        event.initEvent("dataavailable", true, true);
      } else {
        event = document.createEventObject();
        event.eventType = "ondataavailable";
      }

event.eventName = eventName;
      event.memo = memo || { };

if (document.createEvent) {
        element.dispatchEvent(event);
      } else {
        element.fireEvent(event.eventType, event);
      }

return Event.extend(event);
    }
  };
})());

Object.extend(Event, Event.Methods);

Element.addMethods({
  fire:          Event.fire,
  observe:       Event.observe,
  stopObserving: Event.stopObserving
});

Object.extend(document, {
  fire:          Element.Methods.fire.methodize(),
  observe:       Element.Methods.observe.methodize(),
  stopObserving: Element.Methods.stopObserving.methodize(),
  loaded:        false
});

(function() {
  /* Support for the DOMContentLoaded event is based on work by Dan Webb,
     Matthias Miller, Dean Edwards and John Resig. */

var timer;

function fireContentLoadedEvent() {
    if (document.loaded) return;
    if (timer) window.clearInterval(timer);
    document.fire("dom:loaded");
    document.loaded = true;
  }

if (document.addEventListener) {
    if (Prototype.Browser.WebKit) {
      timer = window.setInterval(function() {
        if (/loaded|complete/.test(document.readyState))
          fireContentLoadedEvent();
      }, 0);

Event.observe(window, "load", fireContentLoadedEvent);

} else {
      document.addEventListener("DOMContentLoaded",
        fireContentLoadedEvent, false);
    }

} else {
    document.write("<script id=__onDOMContentLoaded defer src=//:><\/script>");
    $("__onDOMContentLoaded").onreadystatechange = function() {
      if (this.readyState == "complete") {
        this.onreadystatechange = null;
        fireContentLoadedEvent();
      }
    };
  }
})();
/*------------------------------- DEPRECATED -------------------------------*/

Hash.toQueryString = Object.toQueryString;

var Toggle = { display: Element.toggle };

Element.Methods.childOf = Element.Methods.descendantOf;

var Insertion = {
  Before: function(element, content) {
    return Element.insert(element, {before:content});
  },

Top: function(element, content) {
    return Element.insert(element, {top:content});
  },

Bottom: function(element, content) {
    return Element.insert(element, {bottom:content});
  },

After: function(element, content) {
    return Element.insert(element, {after:content});
  }
};

var $continue = new Error('"throw $continue" is deprecated, use "return" instead');

// This should be moved to script.aculo.us; notice the deprecated methods
// further below, that map to the newer Element methods.
var Position = {
  // set to true if needed, warning: firefox performance problems
  // NOT neeeded for page scrolling, only if draggable contained in
  // scrollable elements
  includeScrollOffsets: false,

// must be called before calling withinIncludingScrolloffset, every time the
  // page is scrolled
  prepare: function() {
    this.deltaX =  window.pageXOffset
                || document.documentElement.scrollLeft
                || document.body.scrollLeft
                || 0;
    this.deltaY =  window.pageYOffset
                || document.documentElement.scrollTop
                || document.body.scrollTop
                || 0;
  },

// caches x/y coordinate pair to use with overlap
  within: function(element, x, y) {
    if (this.includeScrollOffsets)
      return this.withinIncludingScrolloffsets(element, x, y);
    this.xcomp = x;
    this.ycomp = y;
    this.offset = Element.cumulativeOffset(element);

return (y >= this.offset[1] &&
            y <  this.offset[1] + element.offsetHeight &&
            x >= this.offset[0] &&
            x <  this.offset[0] + element.offsetWidth);
  },

withinIncludingScrolloffsets: function(element, x, y) {
    var offsetcache = Element.cumulativeScrollOffset(element);

this.xcomp = x + offsetcache[0] - this.deltaX;
    this.ycomp = y + offsetcache[1] - this.deltaY;
    this.offset = Element.cumulativeOffset(element);

return (this.ycomp >= this.offset[1] &&
            this.ycomp <  this.offset[1] + element.offsetHeight &&
            this.xcomp >= this.offset[0] &&
            this.xcomp <  this.offset[0] + element.offsetWidth);
  },

// within must be called directly before
  overlap: function(mode, element) {
    if (!mode) return 0;
    if (mode == 'vertical')
      return ((this.offset[1] + element.offsetHeight) - this.ycomp) /
        element.offsetHeight;
    if (mode == 'horizontal')
      return ((this.offset[0] + element.offsetWidth) - this.xcomp) /
        element.offsetWidth;
  },

// Deprecation layer -- use newer Element methods now (1.5.2).

cumulativeOffset: Element.Methods.cumulativeOffset,

positionedOffset: Element.Methods.positionedOffset,

absolutize: function(element) {
    Position.prepare();
    return Element.absolutize(element);
  },

relativize: function(element) {
    Position.prepare();
    return Element.relativize(element);
  },

realOffset: Element.Methods.cumulativeScrollOffset,

offsetParent: Element.Methods.getOffsetParent,

page: Element.Methods.viewportOffset,

clone: function(source, target, options) {
    options = options || { };
    return Element.clonePosition(target, source, options);
  }
};

/*--------------------------------------------------------------------------*/

if (!document.getElementsByClassName) document.getElementsByClassName = function(instanceMethods){
  function iter(name) {
    return name.blank() ? null : "[contains(concat(' ', @class, ' '), ' " + name + " ')]";
  }

instanceMethods.getElementsByClassName = Prototype.BrowserFeatures.XPath ?
  function(element, className) {
    className = className.toString().strip();
    var cond = /\s/.test(className) ? $w(className).map(iter).join('') : iter(className);
    return cond ? document._getElementsByXPath('.//*' + cond, element) : [];
  } : function(element, className) {
    className = className.toString().strip();
    var elements = [], classNames = (/\s/.test(className) ? $w(className) : null);
    if (!classNames && !className) return elements;

var nodes = $(element).getElementsByTagName('*');
    className = ' ' + className + ' ';

for (var i = 0, child, cn; child = nodes[i]; i++) {
      if (child.className && (cn = ' ' + child.className + ' ') && (cn.include(className) ||
          (classNames && classNames.all(function(name) {
            return !name.toString().blank() && cn.include(' ' + name + ' ');
          }))))
        elements.push(Element.extend(child));
    }
    return elements;
  };

return function(className, parentElement) {
    return $(parentElement || document.body).getElementsByClassName(className);
  };
}(Element.Methods);

/*--------------------------------------------------------------------------*/

Element.ClassNames = Class.create();
Element.ClassNames.prototype = {
  initialize: function(element) {
    this.element = $(element);
  },

_each: function(iterator) {
    this.element.className.split(/\s+/).select(function(name) {
      return name.length > 0;
    })._each(iterator);
  },

set: function(className) {
    this.element.className = className;
  },

add: function(classNameToAdd) {
    if (this.include(classNameToAdd)) return;
    this.set($A(this).concat(classNameToAdd).join(' '));
  },

remove: function(classNameToRemove) {
    if (!this.include(classNameToRemove)) return;
    this.set($A(this).without(classNameToRemove).join(' '));
  },

toString: function() {
    return $A(this).join(' ');
  }
};

Object.extend(Element.ClassNames.prototype, Enumerable);

/*--------------------------------------------------------------------------*/

Element.addMethods();

Create fancyzoom.min.js

Object.extend(String.prototype,{ensureEndsWith:function(A){return this.endsWith(A)?this:this+A},px:function(){return this.ensureEndsWith("px")}});Object.extend(Number.prototype,{px:function(){return this.toString().px()}});var Window={size:function(){var C=window.innerWidth||(window.document.documentElement.clientWidth||window.document.body.clientWidth);var B=window.innerHeight||(window.document.documentElement.clientHeight||window.document.body.clientHeight);var A=window.pageXOffset||(window.document.documentElement.scrollLeft||window.document.body.scrollLeft);var D=window.pageYOffset||(window.document.documentElement.scrollTop||window.document.body.scrollTop);return{width:C,height:B,x:A,y:D}}};var FancyZoomBox={directory:"images",zooming:false,setup:false,init:function(C){if(FancyZoomBox.setup){return }FancyZoomBox.setup=true;var E=navigator.userAgent.match(/MSIE\s(\d)+/);if(E){var B=parseInt(E[1]);Prototype.Browser["IE"+B.toString()]=true;Prototype.Browser.ltIE7=(B<7)?true:false}var D='<div id="zoom" style="display:none;">                   <table id="zoom_table" style="border-collapse:collapse; width:100%; height:100%;">                     <tbody>                       <tr>                         <td class="tl" style="background:url('+FancyZoomBox.directory+'/tl.png) 0 0 no-repeat; width:20px; height:20px; overflow:hidden;" />                         <td class="tm" style="background:url('+FancyZoomBox.directory+'/tm.png) 0 0 repeat-x; height:20px; overflow:hidden;" />                         <td class="tr" style="background:url('+FancyZoomBox.directory+'/tr.png) 100% 0 no-repeat; width:20px; height:20px; overflow:hidden;" />                       </tr>                       <tr>                         <td class="ml" style="background:url('+FancyZoomBox.directory+'/ml.png) 0 0 repeat-y; width:20px; overflow:hidden;" />                         <td class="mm" style="background:#fff; vertical-align:top; padding:10px;">                           <div id="zoom_content">                           </div>                         </td>                         <td class="mr" style="background:url('+FancyZoomBox.directory+'/mr.png) 100% 0 repeat-y;  width:20px; overflow:hidden;" />                       </tr>                       <tr>                         <td class="bl" style="background:url('+FancyZoomBox.directory+'/bl.png) 0 100% no-repeat; width:20px; height:20px; overflow:hidden;" />                         <td class="bm" style="background:url('+FancyZoomBox.directory+'/bm.png) 0 100% repeat-x; height:20px; overflow:hidden;" />                         <td class="br" style="background:url('+FancyZoomBox.directory+'/br.png) 100% 100% no-repeat; width:20px; height:20px; overflow:hidden;" />                       </tr>                     </tbody>                   </table>                   <a href="#" title="Close" id="zoom_close" style="position:absolute; top:0; left:0;">                     <img src="'+FancyZoomBox.directory+'/closebox.png" alt="Close" style="border:none; margin:0; padding:0;" />                   </a>                 </div>';var A=$$("body").first();A.insert(D);FancyZoomBox.zoom=$("zoom");FancyZoomBox.zoom_table=$("zoom_table");FancyZoomBox.zoom_close=$("zoom_close");FancyZoomBox.zoom_content=$("zoom_content");FancyZoomBox.zoom_close.observe("click",FancyZoomBox.hide);FancyZoomBox.middle_row=$A([$$("td.ml"),$$("td.mm"),$$("td.mr")]).flatten();FancyZoomBox.cells=FancyZoomBox.zoom_table.select("td");$$("html").first().observe("click",function(H){var G=H.findElement("#zoom"),F=FancyZoomBox.zoom.getStyle("display");if(F=="block"&&!G){FancyZoomBox.hide(H)}});$(document).observe("keyup",function(G){var F=FancyZoomBox.zoom.getStyle("display");if(G.keyCode==Event.KEY_ESC&&F=="block"){FancyZoomBox.hide(G)}});if(Prototype.Browser.ltIE7){FancyZoomBox.switchBackgroundImagesTo("gif")}},show:function(E){E.stop();if(FancyZoomBox.zooming){return }FancyZoomBox.zooming=true;var C=E.findElement("a");var D=C.content_div;var A=(C.zoom_width||D.getWidth())+60;var I=(C.zoom_height||D.getHeight())+60;var F=Window.size();var B=document.viewport.getScrollOffsets()[1];var G=Math.max((F.height/2)-(I/2)+B,0);var H=(F.width/2)-(A/2);FancyZoomBox.curTop=E.pointerY();FancyZoomBox.curLeft=E.pointerX();FancyZoomBox.moveX=-(FancyZoomBox.curLeft-H);FancyZoomBox.moveY=-(FancyZoomBox.curTop-G);FancyZoomBox.zoom.hide().setStyle({position:"absolute",top:FancyZoomBox.curTop.px(),left:FancyZoomBox.curLeft.px()});new Effect.Parallel([new Effect.Appear(FancyZoomBox.zoom,{sync:true}),new Effect.Move(FancyZoomBox.zoom,{x:FancyZoomBox.moveX,y:FancyZoomBox.moveY,sync:true}),new Effect.Morph(FancyZoomBox.zoom,{style:{width:A.px(),height:I.px()},sync:true,beforeStart:function(J){if(Prototype.Browser.IE){FancyZoomBox.middle_row.invoke("setStyle",{height:(I-40).px()})}FancyZoomBox.fixBackgroundsForIE()},afterFinish:function(J){FancyZoomBox.zoom_content.innerHTML=D.innerHTML;FancyZoomBox.unfixBackgroundsForIE();FancyZoomBox.zoom_close.show();FancyZoomBox.zooming=false}})],{duration:0.5})},hide:function(A){A.stop();if(FancyZoomBox.zooming){return }FancyZoomBox.zooming=true;new Effect.Parallel([new Effect.Move(FancyZoomBox.zoom,{x:FancyZoomBox.moveX*-1,y:FancyZoomBox.moveY*-1,sync:true}),new Effect.Morph(FancyZoomBox.zoom,{style:{width:"1".px(),height:"1".px()},sync:true,beforeStart:function(B){FancyZoomBox.fixBackgroundsForIE();FancyZoomBox.zoom_content.innerHTML="";FancyZoomBox.zoom_close.hide()},afterFinish:function(B){FancyZoomBox.unfixBackgroundsForIE();FancyZoomBox.zooming=false}}),new Effect.Fade(FancyZoomBox.zoom,{sync:true})],{duration:0.5})},switchBackgroundImagesTo:function(C){FancyZoomBox.cells.each(function(E){var D=E.getStyle("background-image").gsub(/\.(png|gif|none)\)$/,"."+C+")");E.setStyle("background-image: "+D)});var B=FancyZoomBox.zoom_close.firstDescendant();var A=B.readAttribute("src").gsub(/\.(png|gif|none)$/,"."+C);B.writeAttribute("src",A)},fixBackgroundsForIE:function(){if(Prototype.Browser.IE7){FancyZoomBox.switchBackgroundImagesTo("gif")}},unfixBackgroundsForIE:function(){if(Prototype.Browser.IE7){FancyZoomBox.switchBackgroundImagesTo("png")}}};var FancyZoom=Class.create({initialize:function(A){this.options=arguments.length>1?arguments[1]:{};FancyZoomBox.init();this.element=$(A);if(this.element){this.element.content_div=$(this.element.readAttribute("href").gsub(/^#/,""));this.element.content_div.hide();this.element.zoom_width=this.options.width;this.element.zoom_height=this.options.height;this.element.observe("click",FancyZoomBox.show)}}});