function openCenteredWindow(url, width, height) {
    var left = parseInt((screen.availWidth/2) - (width/2));
    var top = parseInt((screen.availHeight/2) - (height/2));
    var windowFeatures = "width=" + width + ",height=" + height + ",_blank,status=no,toolbar=no,menubar=no,location=no,left=" + left + ",top=" + top + "screenX=" + left + ",screenY=" + top;
    myWindow = window.open(url, "subWind", windowFeatures);
}

function OpenFile( fileUrl )
{        
    window.opener.SetUrl( encodeURI( fileUrl ) ) ;
    window.close() ;
	window.opener.focus() ;
}