<head>
<script language="JavaScript">
<!--
function Center(url){
   var w = 250; // set the width of pop-up
   var h = 250; // set the height of pop-up
   var l = Math.floor((screen.width-w)/2);
   var t = Math.floor((screen.height-h)/2);
   window.open(url,"pop","width=" + w + ",height=" + h + ",top=" + t + ",left=" + l);
 }
-->
</script>
</head>