function ins_voto(voto, id_viaggio, pageElement, callMessage) {
   //  document.getElementById(pageElement).innerHTML = callMessage;
   document.getElementById(pageElement).innerHTML = '<span align="right"><img src="../img/wait.gif"></span>';
     try {
     req = new XMLHttpRequest(); /* e.g. Firefox */
     } catch(e) {
       try {
       req = new ActiveXObject("Msxml2.XMLHTTP");  /* some versions IE */
       } catch (e) {
         try {
         req = new ActiveXObject("Microsoft.XMLHTTP");  /* some versions IE */
         } catch (E) {
          req = false;
         } 
       } 
     }

     req.onreadystatechange = function() {responseAHAH(pageElement);};
     req.open("GET","ins_voto.php?id_viaggio="+id_viaggio+"&voto="+voto,true);
     req.setRequestHeader("content-type", "application/x-www-form-urlencoded");
     //info=voto+"_"+id_viaggio;
     //req.send("var1="+info);
     req.send(null);
     //eturn req;

     //alert(info);
  }




function responseAHAH(pageElement) {
   var output = '';
   if(req.readyState == 4) {
      if(req.status == 200) {
         output = req.responseText;
         document.getElementById(pageElement).innerHTML = output;
         }

      }

  }