function tvips_window(file, width, height) {
  var win_width, win_height;
  (width ? (win_width=",width=" + width) : win_width="");
  (height ?  (win_height=",height=" + height) : win_height="");
  var win_dow = open(file, '', 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=1,resizable=1,dependent=1'+win_width+','+win_height); 
  win_dow.focus();
}


function ImageBrowser(file, width, height) {
  var win_width, win_height;
  (width ? (win_width=",width=" + width) : win_width="");
  (height ?  (win_height=",height=" + height) : win_height="");
  var win_dow = open(file, '', 'toolbar=0,location=0,directories=0,status=0,menubar=0,scrollbars=0,resizable=0,dependent=0'+win_width+','+win_height); 
  win_dow.focus();
}

function change_parent_url(url)
        {
	    document.location=url;
        }