/** Dom onLoad event hanlder object. */
var DOMEvents = new Object();

/** Array storing the functions to call. */
DOMEvents.Entries = new Array();

/** State variables. */
DOMEvents.State = 0;
DOMEvents.REGISTERED = 1;
DOMEvents.LOADED = 2;

/**
 * Register a function for the onDomLoaded event.
 */
DOMEvents.register = function (fCallback)
{
	this.Entries[this.Entries.length] = fCallback;
	
	if (this.State >= this.LOADED) {
		this._run();
	}
}

/**
 * Run the registered functions.
 */
DOMEvents._run = function ()
{
	// Call all the registered functions.
	for (var i = 0; i < this.Entries.length; i++) {
		this.Entries[i]();
	}
	
	// Reset array and set state to loaded.
	this.Entries = new Array();
	this.State = this.LOADED;
}

/**
 * Register the events needed.
 */
DOMEvents._registerEvent = function ()
{
	if (this.State < this.REGISTERED) {
		// Case GECKO
		if (document.addEventListener) {
			document.addEventListener('DOMContentLoaded', function () { DOMEvents._run(); }, null);
			this.State = this.REGISTERED;
		}
		
		// Case IE
		/*
		var sAgent = navigator.userAgent.toLowerCase();
		if (sAgent.indexOf('msie') != -1 && sAgent.indexOf('opera') == -1) {
			if (document.getElementsByTagName
				&& (document.getElementsByTagName('body')[0] != null || document.body != null)) {
				var oHtml = document.getElementsByTagName('html')[0];
				var oScript = document.createElement('script');
				oScript.type = 'text/javascript';
				oHtml.appendChild(oScript);
				oScript.text = 'DOMEvents._run();';
				this.State = this.REGISTERED;
			} else {
				setTimeout(function () { DOMEvents._registerEvent(); }, 10);
			}
		}
		*/
		
		// Default
		if (this.State < this.REGISTERED) {
			if (document.body) {
				if (document.body._DOMLoaded) {
					DOMEvents._run();
				} else {
					var fOldOnLoad = window.onload;
					window.onload = function () {
						DOMEvents._run();
						if (fOldOnLoad) fOldOnLoad();
					}
				}
				this.State = this.REGISTERED;
			} else {
				setTimeout(function () { DOMEvents._registerEvent(); }, 0);
				return false;
			}
		}
		
		return true;
	}
	
	return false;
}

/** Make sure we have registered the event. */
DOMEvents._registerEvent();