function finiNews(){
  $("impt_mail_menuAcc").onkeypress = function(evt){enterNewsAcc(evt);};
}

function enterNewsAcc(event){
  if(!event) var event = window.event;
  if(event && event.keyCode==13) envoiMailByAjaxByForm('formNewsletterAcc','elemInfoNewsletterAcc',false);
}