// JavaScript Document
	var blank = new Image();
	blank.src = "/image/blankarrow.gif";
	var anim = new Image();
	anim.src = "/image/arrows.gif";
	var still = new Image();
	still.src = "/image/stillarrow.gif";
	
	var leftsOn = new Image(); // Active images
	leftsOn.src = "/image/lefts.on.gif";
	var leftsOff = new Image(); // Inactive images
	leftsOff.src = "/image/lefts.off.gif";

	var rightsOn = new Image(); // Active images
	rightsOn.src = "/image/rights.on.gif";
	var rightsOff = new Image(); // Inactive images
	rightsOff.src = "/image/rights.off.gif";

	function showAnim(buttonName)
	{
		document[buttonName].src = anim.src;
	}
	function hideAnim(buttonName, selected)
	{
		if(selected) 
			document[buttonName].src = still.src;
		else 
			document[buttonName].src = blank.src;
	}
	function imgOn(imgName) 
	{
			document[imgName].src = eval(imgName + "On.src");
	}
	
	function imgOff(imgName) 
	{
			document[imgName].src = eval(imgName + "Off.src");
	}
	function addEvent(obj, evType, fn)
	{
		if (obj.addEventListener) 
		{
			obj.addEventListener(evType, fn, true);
			return true;
		} 
		else if (obj.attachEvent) 
		{
			var f = function(evt) {
				obj.__hnd = fn;
				var result = obj.__hnd(evt);
				obj.__hnd = null;
				return result;
			};
			var r = obj.attachEvent("on"+evType, f);
			return r;
		} 
		else 
		{
			return false;
		}
	}
	
	function addLoadEvent(func) 
	{
		var oldonload = window.onload;
		if (typeof window.onload != 'function') 
			window.onload = func;
		else 
		{
			window.onload = function() {
				if (oldonload) 
					oldonload();
				func();
			}
		}
	}