Test code for my previous post Telerik RadWindow Client-Side Content Container.  Sorry, the formatting is a little off.
CSS:

ul#actionList, ul#actionList li {margin: 0; padding: 0; list-style: none; line-height: 20px;}
ul#actionList { margin: 5px 10px; } ul#actionList li { margin-bottom: 5px; }
div#echoConsole { margin: 20px; border: 1px solid #ababab; background-color: #fbfec2; padding: 5px; }
p { padding: 5px; margin: 0; font-family: Arial; font-size: 12px; }
.mar-b-10 {margin-bottom: 10px;}
   

JavaScript:

$(document).ready(function() {
      // attach the click event to the buttons - button will open the new RadWindow dialog
      $('ul#actionList button').click(function(e) {
         e.preventDefault();
         var btnID = $(this).get(0).id;
         switch (parseInt(btnID.substring(btnID.length - 1))) {
            case 0:
               radWindowExtensions.openDialog({ width: 400, height: 400, title: 'This is the Dialog Title', content: $('div#hiddenDiv'), resizable: false, onOpen: dialogHandlers.onOpen, onClosing: dialogHandlers.onClosing, onClosed: dialogHandlers.onClosed });
               break;
            case 1:
               radWindowExtensions.openDialog({ width: 500, height: 600, title: 'This is the Dialog Title', content: $('div#hiddenDiv').html(), resizable: true, onOpen: dialogHandlers.onOpen, onClosing: dialogHandlers.onClosing, onClosed: dialogHandlers.onClosed });
               break;
            case 2:
               radWindowExtensions.openDialog({ xPos: '100', yPos: 10, onOpen: dialogHandlers.onOpen, onClosing: dialogHandlers.onClosing, onClosed: dialogHandlers.onClosed });
               break;
            case 3:
               radWindowExtensions.openDialog();
               break;
         }
      });
   });

   // test handlers object - will echo event handler messages to a div tag
   var dialogHandlers = {
      _getConsole: function() { if (!dialogHandlers._console) { dialogHandlers._console = $('div#echoConsole').show(); } return dialogHandlers._console; },
      _echo: function(msg) { var c = dialogHandlers._getConsole(); c.append($('<div/>').addClass('mar-b-10').html(msg)); },
      onOpen: function(content) {
         // use onOpen event handler to modify the content - e.g. add event handlers to buttons, etc...
         dialogHandlers._echo('onOpen event fired on RadWindow with ID of ' + this.get_name());
         $(content).find('p:first').css('color', 'red');
      },         
      onClosing: function(content) {
         // use onClosing event handler to clean up content - e.g. unbind event handlers.
         dialogHandlers._echo('onClosing event fired on RadWindow with ID of ' + this.get_name());            
         dialogHandlers._echo('number of paragraphs: ' + $(content).find('p').size());
      },
      onClosed: function(content) {
         dialogHandlers._echo('onClosed event fired on RadWindow with ID of ' + this.get_name());
         dialogHandlers._echo('number of paragraphs: ' + $(content).find('p').size());
      }
   };

HTML:

    Content set to a jQuery wrapped object, non-resizable  
    Content set to HTML  
    No Content, positioned dialog  
    No Content, no options (default) dialog  
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