function openwindow2(width,height,url) {
	var left=(screen.width-width-10)/2;
	var top=(screen.height-height-20)/2;
	var show = false;
	var pw="";
	if (left<0) left=0;
	if (top<0) top=0;
	if (pw=="") {
		show=true;
	} else {
		rep=prompt("","");
		if (rep!=null) {
			if (rep!=pw) {
				alert("");
			} else {
				show=true;
			}
		}
	}
	if (show) {
		var options = "toolbar=no,location=no,directories=no,status=yes,menubar=no,scrollbars=no,resizable=no,copyhistory=no,width="+width+",height="+height+",left="+left+",top="+top;
		var mypopup = window.open( url ,"popupwindow", options);
		mypopup.moveTo(left, top);
	}
}