<!--- Redirection en fonction de la resolution

var wid=screen.width;

if (wid==640) {self.location.href="vallee1.htm";}

if (wid==800) {self.location.href="vallee1.htm";}

if (wid==1024) {self.location.href="vallee2.htm";}

if (wid>1024) {self.location.href="vallee3.htm";}

//  --->