function windowOpen(url, name, w, h) {
	var winl = (screen.width - w) / 2;
	var wint = (screen.height - h) / 2;
	winbuild = 'height='+h+',width='+w+',top='+wint+',left='+winl+',buttons=0,scrollbars=0,location=0,menubar=0,resizable=0,status=0,directories=0,toolbar=0,copyhistory=0'
	win = window.open(url,name,winbuild)
	if (parseInt(navigator.appVersion) >= 4) {
		win.window.focus();
	}
}