function callJavascript(url) {
   //use JQuery to populate lightbox container div with lightbox html links using query parameter from <data> section on galleryxml.aspx (url)
   $("#lightbox_container").load("galleryhtml.aspx", {mid:url}, function(){
    // initialise the light box
    $(".lightbox").lightbox();
    //click on the first lightbox link
    $("#click0").click();
   });
  
}