var r_img = new Array ();
r_img[0] = "\<img src='interface/entete.jpg' width='756' height='134'>";
r_img[1] = "\<img src='interface/entete1.jpg' width='756' height='134'>";
r_img[2] = "\<img src='interface/entete2.jpg' width='756' height='134'>";
r_img[3] = "\<img src='interface/entete3.jpg' width='756' height='134'>";
r_img[4] = "\<img src='interface/entete4.jpg' width='756' height='134'>";

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

if (navigator.appName == "Netscape")
   {
   document.write("<div style='width:756px;height:134px;'>" + r_img[i] + "</div>");
   }
else
   {
   document.write("<div style='width:756px;height:134px;'>" + r_img[i] + "</div>");
   }