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


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 == 'rollover') {
				var src = aImages[i].getAttribute('src');
				var hsrc = src.replace('_off', '_on');
	
				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', '_off');
					this.setAttribute('src', sTempSrc);
				}
			}
		}
	}
	
	
	
	// load event
	function addLoadEvent(func) {
	 var oldonload = window.onload;
		 if (typeof window.onload != 'function') {
			window.onload = func;
		 } else {
			 window.onload = function() {
			 oldonload();
			 func();
			 }
		 }
	}
	
	addLoadEvent(initRollovers);