//On load page, init the timer which check if the there are anchor changes each 300 ms  
  $().ready(function(){  
      setInterval("checkAnchor()", 300);  
  });  
  var currentAnchor = null;  
  //Function which chek if there are anchor changes, if there are, sends the ajax petition  
  function checkAnchor(){  
      //Check if it has changes  
      if(currentAnchor != document.location.hash){
          currentAnchor = document.location.hash;          
          //if there is not anchor, the loads the default section  
          if(!currentAnchor)
              query = "gromada.html";  
          else  
          {  
              //Creates the  string callback. This converts the url URL/#main&id=2 in URL/?section=main&id=2  
              var splits = currentAnchor.substring(1).split('&');  
              //Get the section  
              var section = splits[0];  
              delete splits[0];  
              //Create the params string  
              //var params = splits.join('&');
              var query = section + ".html";  
          }  
          //Send the petition  
          $.get(/*"callbacks.php",*/query, "", function(data){  
              $("#content").html(data);  
          });  
      }  
  }