// Adapted from DOM Ready extension by Dan Webb// http://www.vivabit.com/bollocks/2006/06/21/a-dom-ready-extension-for-prototype// which was based on work by Matthias Miller, Dean Edwards and John Resig//// Usage://// Event.onReady(callbackFunction);
Object.extend(Event, {  _domReady : function() {    if (arguments.callee.done) return;    arguments.callee.done = true;     if (Event._timer)  clearInterval(Event._timer);     Event._readyCallbacks.each(function(f) { f() });    Event._readyCallbacks = null;   },  onReady : function(f) {    if (!this._readyCallbacks) {      var domReady = this._domReady;       if (domReady.done) return f();       if (document.addEventListener)        document.addEventListener("DOMContentLoaded", domReady, false);         /*@cc_on @*/        /*@if (@_win32)            var dummy = location.protocol == "https:" ?  "https://javascript:void(0)" : "javascript:void(0)";            document.write("<script id=__ie_onload defer src='" + dummy + "'><\/script>");            document.getElementById("__ie_onload").onreadystatechange = function() {                if (this.readyState == "complete") { domReady(); }            };        /*@end @*/         if (/WebKit/i.test(navigator.userAgent)) {           this._timer = setInterval(function() {            if (/loaded|complete/.test(document.readyState)) domReady();           }, 10);        }         Event.observe(window, 'load', domReady);        Event._readyCallbacks =  [];    }    Event._readyCallbacks.push(f);  }});