function gestionClic(nom,eml,sujet,message)
{
  var url = 'verif_form.php';
  var params = 'nom='+escape($F('nom'))+'&eml='+escape($F('eml'))+'&sujet='+escape($F('sujet'))+'&message='+escape($F('message'));
  var myAjax = new Ajax.Request(
	  url, 
	  {
		method: 'post', 
		postBody: params,
		onLoading: function(){ $("result").innerHTML = "<div><img src=\"images/ajax-loader.gif\"></div>";},
		onComplete: gestionReponse
	  });
}
function gestionReponse(xhr)
{
    if (xhr.status == 200)
    {
        $('result').innerHTML = xhr.responseText;
    }
    else
    {
        $('result').innerHTML = xhr.status;
    }
}