Проблема с ajax

<script type="text/javascript">

function loadpage(div_id){
   div_id.find('a.ajaxload').click(
      function(){
         if ($(this).attr("href").indexOf("http://") == -1) {
            if ($(this).attr("class") != "cajaxload") {
               var url = $(this).attr('href');
               div_id.hide('slow',
                  function(){   
                     div_id.empty();
                     $("#loading_animation").show();
                     $.get(url,{},
                        function(response){
                           $("#loading_animation").hide();
                           div_id.append(response).fadeIn('slow');
                            $.fn.lightbox.initialize();
                           loadpage(div_id);
                        }
                     )
                  }            
               );      
               return false;
            }
         }
      }
   );
}



$(document).ready(function(){
var div_id = $('#information_system_19');
loadpage(div_id);
});
   
</script>

setTimeout(function(){
...
}, 100);

setTimeout(function(){
...

jQuery.ready();

}, 100);