function launchCenter(url, name, width, height, winstyle) 
	    {
	        var str = "height=" + height + ",innerHeight=" + height;
		    str += ",width=" + width + ",innerWidth=" + width;  if (window.screen) {
		    var ah = screen.availHeight - 30;    var aw = screen.availWidth - 10;
		    var xc = (aw - width) / 2;    var yc = (ah - height) / 2;
		    str += ",left=" + xc + ",screenX=" + xc;
		    str += ",top=" + yc + ",screenY=" + yc;  }
		    return window.open(url, name, str + "," + winstyle);
	    }
	
    function PopWindow(strURL, width, height)
	    {		
		    launchCenter(strURL, '_blank', width, height, 'scrollbars=yes,toolbar=no,location=no,menubar=no,resizable=no');
        }