function readCookie(name) {
 if (!name) {
	 name = "symfony";
 }
 var nameEQ = name + "=";
 var ca = document.cookie.split(';');
 for(var i=0;i < ca.length;i++) {
  var c = ca[i];
  while (c.charAt(0)==' ') c = c.substring(1,c.length);
  if (c.indexOf(nameEQ) == 0)
  {
      //alert('hereiam '+c.substring(nameEQ.length,c.length));
      return c.substring(nameEQ.length,c.length);
  }
 }
 return null;
}