/*
	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 == 'imgover') {
			var src = aImages[i].getAttribute('src');
			var ftype = src.substring(src.lastIndexOf('.'), src.length);
			var hsrc = src.replace(ftype, '_o'+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('_o'+ftype, ftype);
				this.setAttribute('src', sTempSrc);
			}
		}
	}
}

// this function calls a popupWindow where
// win is the page address i.e. '../page.htm'
function popupWindow(win){
	winWidth = 1024; // sets a default width for browsers who do not understand screen.width below
	winheight = 768; // ditto for height

	if (screen){ // weeds out older browsers who do not understand screen.width/screen.height
		winWidth = screen.width;
   		winHeight = screen.height;
	}
	
	
	newWindow = window.open(win,'mainWin','toolbar=no,location=no,scrollbars=no,resizable=yes,width='+winWidth+',height='+winHeight+',left=0,top=0');
	newWindow.focus();

}

window.onload = function () {
	initRollovers();
}