function popup(contentsURL, winName, winProps, width, height) {
     if (!winName) var winName = "_blank";
    // if (!winProps) var winProps = "menubar=0,toolbar=0,resizable=0,location=0,status=0,scrollbars=1";
     if (!width) var w = 600
             else w = width;
     if (!height) var h = 400
                 else h = height;

     var args = "width=" + w + ",height=" + h
      + "," + winProps

	 return window.open(contentsURL, winName, args)
}