function OuvrirPopup(uneUrl,fenetre) {
     /*  window.open(page,nom,option);*/
	    var h = 435; // hauteur de la popup
		var l = 365; // largeur de la popup
		if (h==0) h=screen.availWidth;
		if (l==0) l=screen.availHeight;
		var PosX = ( screen.availWidth - h ) / 2; 
		var PosY = ( screen.availHeight - l ) / 2; 
		var option = "resizable=no,toolbar=no,scrollbars=no,menubar=no,top="+PosY+",left="+PosX+",width="+h+",height="+l; 
		window.open(uneUrl,fenetre,option); 
    }