// copyright 2005 goldenbrown.ca c/o tam-inc.com

function preload(root){
	
	if(document.images){
		
		img_list = ['btn-home_conf-over.gif', 'btn-exhibitors-over.gif', 'btn-agenda-over.gif', 'btn-seminar-over.gif', 'btn-register-over.gif', 'btn-home_tam-over.gif', ];
		
		for(var x in img_list){
			document.preload = new Image();
			document.preload.src = root+'~stock/images/'+img_list[x];
		}
	}
}

function rollover(root, img_src, id){
	
	if(document.images){
		
		document.getElementById(id).src = root+'~stock/images/'+img_src;
	}
}