winArray=new Array();
loaded=false;
chrome=',scrollbars=no,toolbar=no,location=no,directories=no,status=no,resizable=no,copyhistory=no,titlebar=no';
function start(path, extension, list) {
	loaded=true;
	imgData=new Array();
	for (var i=0;i<list.length;i++) {
		basename=list[i];
		imgData[basename]=new Image();
		imgData[basename].src=path+basename+"."+extension;
		imgData[basename+"_h"]=new Image();
		imgData[basename+"_h"].src=path+basename+"_h."+extension;
	}
}

function openWindow(theURL, winName, w, h) {
	sW = screen.availWidth;
	sH = screen.availHeight;
	var x = ((sW-w)/2), y = ((sH-h)/2);
	winArray[winName]=window.open(theURL,winName,'width='+ w +',height='+ h +',top='+ y +',left='+ x +',screenY='+ y +',screenX='+ x + chrome);
	if (!document.layers) {
		setTimeout('winArray["'+winName+'"].moveTo('+x+','+y+')',200);
	}
	winArray[winName].focus();
}

function rollover(img) { if (loaded) {document.images[img].src=imgData[img+"_h"].src;} }

function rollout(img) { if (loaded) {document.images[img].src=imgData[img].src;} }