/*
	Standards Compliant Rollover Script
	Author : Daniel Nolan
	http://www.bleedingego.co.uk/webdev.php
*/

function initRollovers2() {
	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 == 'menu') {
			
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_on'+ftype);
			var picname = src.substring((src.lastIndexOf('\/')+1),src.lastIndexOf('.'));
			
			aImages[i].setAttribute('hsrc', hsrc);
			aImages[i].setAttribute('picname', picname);
			
			//aPreLoad[i] = new Image();
			//aPreLoad[i].src = hsrc;
			
			aImages[i].onmouseover = function() {
				//sTempSrc = this.getAttribute('src');
				//this.setAttribute('src', this.getAttribute('hsrc'));
				swapImage(this.getAttribute('picname'));
			}	
			
			aImages[i].onmouseout = function() {
				//if (!sTempSrc) sTempSrc = this.getAttribute('src').replace('_on'+ftype, ftype);
				//this.setAttribute('src', sTempSrc);
			}
			
		}
	}
}

function swapImage(imgname) { 
	imgTag = '<img src="./img/home/top_'+imgname+'.jpg" width="630" height="210"/>';
	document.getElementById("topimage").innerHTML = imgTag; 
}

window.onload = initRollovers2;