function on_news(leDocu, leTitre, leWidth, leHeight) {
if (leDocu == "")

	return;
  features="directories=no,location=no,menubar=no,scrollbars=yes,status=no,toolbar=no,resizable=no";
  if (leHeight=="")
  	leHeight = 450;
  if (leWidth=="")
  	leWidth = 400;
  features += ",width="+leWidth+",height="+leHeight;
  maFenetre = window.open(leDocu, leTitre, features);
}