/*
	Standards Compliant Rollover Script
	Author : Daniel Nolan
	http://www.bleedingego.co.uk/webdev.php
	
	Last Modified: 2009-06-17, by RaNa design associates, inc.
*/

function initRollovers() {
	if (!document.getElementById) return
	var c = {
		_class: 'rollover',
		prefix: '_on'
	};
	var aPreLoad = new Array();
	var sTempSrc;
	var aImages = [];
	var imgs = document.getElementsByTagName('img');
	for (var i = 0, l = imgs.length; i < l; i++)  aImages.push(imgs[i]);
	var inputs = document.getElementsByTagName('input');	
	for (var i = 0, l = inputs.length; i < l; i++) {
		if (inputs[i].getAttribute('type') == 'image') aImages.push(inputs[i]);
	}
//	for(var i = 0, l = inputsIMG.length; i <l; i++) alert(inputsIMG[i].alt);
	for (var i = 0; i < aImages.length; i++) {		
		if (aImages[i].className == c._class) {
			
			var src = aImages[i].getAttribute('src');
			var exIndex = src.lastIndexOf('.');
			if(src.substring(exIndex - 3, exIndex) == c.prefix) continue;
			
			var ftype = src.substring(exIndex, src.length);
			var hsrc = src.replace(ftype, c.prefix + 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(c.prefix + ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}
if(window.addEventListener) window.addEventListener('load', initRollovers, false);
else if(window.attachEvent) window.attachEvent('onload', initRollovers);