function Popup(url)
		{
		   var w = 600; // set the width of pop-up
		   var h = 500; // 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","toolbar=yes,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=" + w + ",height=" + h + ",top=" + t + ",left=" + l);
		}     

		function Popup_Gallery(url)
		{
		   var w = 800; // set the width of pop-up
		   var h = 600; // 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,"Popup_Gallery","toolbar=yes,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=" + w + ",height=" + h + ",top=" + t + ",left=" + l);
		}