function funAjax(url, destino, pars)
  {
  var myAjax = new Ajax.Request( url,	
    {
    method: 'get', 
    parameters: pars, 
    onLoading: showLoad, 
    onComplete: function showResponse (originalRequest)
      {
      var newData = originalRequest.responseText;
      $('load').style.display = 'none';
      $(destino).innerHTML = newData;
      }
    });
  }


function showLoad()
  {
  $('load').style.display = 'block';
  }