function _checkMail(email)
{
  /** Enleve les espaces inutiles */
  var aRemplacer = / /g;
  var mail = email.replace(aRemplacer, "");
  /** Recupere le @ */
  var arobas = mail.indexOf("@", 0);
  if(arobas <= -1) return false;
  else
  {
    var username = mail.substring(0, arobas);
    /** Recupere le point d'extension */
    var point = mail.lastIndexOf(".");
    if(point <= -1) return false;
    else
    {
      var domain = "/" + mail.substring(arobas + 1, point);
      return true;
    }
  }
}

function checkMail(email)
{
  var reg = /^[a-z0-9._-]+@[a-z0-9.-]{2,}[.][a-z]{2,3}$/ 
  return (reg.exec(email)!=null)
}