jQuery().ready(function(){

   var bann = new Array ();  // on donne les liens de chaque bannière
   bann[0] = "https://i.servimg.com/u/f11/17/72/36/01/sans_t64.jpg";
   bann[1] = "https://i.servimg.com/u/f11/17/72/36/01/lihal_12.jpg";
   bann[2] = "https://i.servimg.com/u/f11/17/72/36/01/lilith13.jpg";
   bann[3] = "https://i.servimg.com/u/f11/17/72/36/01/police11.jpg";

   var i = Math.floor(4*Math.random());

   document.getElementById("bann").innerHTML = "<a href=\"https://psylder.forumactif.com/\"><img src=\""+bann[i]+"\" alt=\"mon forum\" border=\"0\"></a>";
   
});