var ng = navigator;
var ua = ng.userAgent;
var nav = (ng.appName == 'Netscape');
var ie4 = (ng.appVersion.indexOf('MSIE 4') != -1);
var mac = (ua.indexOf('Mac') != -1);
var aol = (ua.indexOf('AOL') != -1);
var hnd;

function imageWin(url) {
	if (mac) { w=nav?400:384; h=nav?320:(ie4?307:304); } else { w=400; h=aol?325:320; }
	hnd = window.open(url,'enlarge','resizable=no,scrollbars=no,width='+w+',height='+h+',screenx=25,screeny=30,left=25,top=30');
	if (hnd && !ie4) { hnd.focus(); }
}