// JavaScript Document
function initRollovers() {
 if (!document.getElementById) return

 var aPreLoad = new Array();
 var sTempSrc;
 var aImages = document.getElementsByTagName('img');

 for (var i = 0; i < aImages.length; i++) {
 if (aImages[i].className == 'imgover') {
 var src = aImages[i].getAttribute('src');
 var ftype = src.substring(src.lastIndexOf('.'), src.length);
 var hsrc = src.replace(ftype, '_on'+ftype);

 aImages[i].setAttribute('hsrc', hsrc);

 aPreLoad[i] = new Image();
 aPreLoad[i].src = hsrc;

 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('_on'+ftype, ftype);
 this.setAttribute('src', sTempSrc);
 }
 }
 }
}

if(window.addEventListener) {
	window.addEventListener("load", initRollovers, false);
}
else if(window.attachEvent) {
	window.attachEvent("onload", initRollovers);
}