function sendafriend(event) {
	YAHOO.util.Event.stopEvent(event);
	var form = YAHOO.util.Dom.get('tellafriendForm');
	var inputs = form.elements;
	
  if(inputs[0].value == "") {
		alert('Merci de rentrer votre nom.');
		return;
	}
  
  if(inputs[2].value == "") {
		alert('Vous devez rentrer au moins une adresse email.');
		return;
	}
  
	var emails = [];
	for(var i = 2 ; i < inputs.length ; i++) {
    if (inputs[i].value != ""){
		emails.push(inputs[i].value);
    }
	}
	YAHOO.util.Connect.asyncRequest('POST', '/ajaxTellaFriend', { 
	   success: function(o) {
	      alert(o.responseText);
        
       	for(var i = 1 ; i < inputs.length ; i++) {
        inputs[i].value = "";
          }
	   }, 
	   failure: function(o) {
	      alert(o.responseText);
	   }
	}, "emails="+window.encodeURIComponent(emails.join(','))+"&name="+window.encodeURIComponent(inputs[0].value)+"&comment="+window.encodeURIComponent(inputs[1].value) );
}
YAHOO.util.Event.addListener('tellAddButton', 'click', function(e, params) {
	var tgt = YAHOO.util.Event.getTarget(e);
	var form = YAHOO.util.Dom.get('tellafriendForm');
	var input = document.createElement('input');
	input.type="text";
	input.className="cell_mail";
	form.appendChild( input );
	form.appendChild( document.createElement('br') );
});