function OpenFile(url,width,height) {
	var Left = (screen.width - width) / 2 - 5;
	var Top = (screen.height - height) / 2 - 29;
	var Scroll = typeof(arguments[3])=='undefined'?'no':arguments[3];
	shown=window.open(url,"","top="+Top+",left="+Left+",width="+width+",height="+height+",scrollbars="+Scroll+",status=no,resizable=yes,high");
	return false;
}