function twitter(url) { 
   		$('#twitter').html("<center><img src='http://valentinbourgoin.net/blog/wp-content/themes/valentin/images/preload.gif' alt='Chargement...' /></center>");
        $('#twitter').slideUp("slow", function() { 
            $('#twitter').load(url, function() { 
                $('#twitter .next, #twitter .prev').click(function() { 
                    twitter($(this).attr('href')); 
                    return false; 
                }); 
                $('#twitter').slideDown("slow"); 
            }); 
        }); 
    } 
     
	
	 /*** Fonction d'envoi de mail ***/
 	function send_mail() {
		if(document.getElementById('name').value != "" && document.getElementById('comments').value != "") {
			document.getElementById("form_mail").submit();
		} else alert("Veuillez saisir tous les champs");
	}