function newWin(url,w,h) {
	var winx = (screen.width/2)-(w/2);
	var winy = (screen.height/2)-(h/2);
	window.open(url,'','toolbar=0,scrollbars=auto,location=0,statusbar=0,menubar=0,resizable=0,width='+w+',height='+h+',left='+winx+',top='+winy+'');
}