// JavaScript Document

function Initialize(){
	initRollovers();
}

function initRollovers() {
	if (!document.getElementById) return
	
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = document.getElementsByTagName('img');
	var cur = this.location.href.substring(this.location.href.lastIndexOf('/')+1,this.location.href.lastIndexOf('.'));
	for (var i = 0; i < aImages.length; i++) {      
		if (aImages[i].className == 'nav') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_ov'+ftype);
			if(cur.indexOf(aImages[i].getAttribute("Id")) != -1) {
				aImages[i].setAttribute('src', src.replace(ftype, '_cur'+ftype));
			}
			aImages[i].setAttribute('hsrc', hsrc);

			aPreLoad[i] = new Image();
			aPreLoad[i].src = hsrc;
			if(cur.indexOf(aImages[i].getAttribute("Id"))==-1 && aImages[i].parentNode.tagName=="A") {
			aImages[i].onmouseover = function() {
				sTempSrc = this.getAttribute('src');
				this.setAttribute('src', this.getAttribute('hsrc'));
			}

			aImages[i].onmouseout = function() {
				if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_ov'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
			}
		}
	}
}

$(document).ready(Initialize);