/* handles highlight selection of menu */


function menu_rollover() 
{
	var imgs;
	var preload;
	var i;
	var j;
	var c;
	var offsrc ;
	var onsrc ;
		
	c = 0;
	preload = new Array();
	imgs = document.getElementsByTagName('img');
	
	for ( i=0, j=imgs.length; i<j; i++ ) {
	
		if ( imgs[i].className && imgs[i].className == 'rollover' ) {
			
			if ( imgs[i].src.match (/-off((?:\.[^\.]*)?)$/) ) {
		
				imgs[i].offsrc = imgs[i].src;
				imgs[i].onsrc = imgs[i].src.replace (/-off((?:\.[^\.]*)?)$/, '-on$1');
				
				preload[c] = new Image();
				preload[c++].src = imgs[i].onsrc;
				
				imgs[i].onmouseover = function () { this.src = this.onsrc; }				
				imgs[i].onmouseout = function () { this.src = this.offsrc; }
			}	
		}	
	}
		
} // END function menu_rollover

document.onLoad = menu_rollover();