function sendForm(form,div,url) {
    
    var myAjax = new Ajax.Updater(
                                  div,
                                  url,
                                  {
                                      method: 'post',
                                      parameters: Form.serialize(form),
                                      evalScripts: true,
                                      onLoading: function() {
                                          
                                          $(div).innerHTML = '<div align="center">Espere...</div>';
                                      }
                                  }
                                  );
}


function hideArea(div) {
    
    new Effect.Opacity(div,
                        {
                            duration:1.0,
                            from: 0.0,
                            to:1.0
                        });
}