/*
  Gestion des cookies
*/
   function cre_cook(nom,contenu,minutes) {
      var expireDate = new Date();
      expireDate.setTime(expireDate.getTime() + minutes*3600*1000);
      document.cookie = nom + "=" + escape(contenu);
         + ";expires=" + expireDate.toGMTString();
      }
   function SetCookie (name,value,expires,path,domain,secure) {
      document.cookie = name + "=" + escape (value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
    }

   function lit_cook(nom) {
      var deb,fin,debdate;
      deb = document.cookie.indexOf(nom + "=");
      if (deb >= 0) {
         deb += nom.length + 1;
         fin = document.cookie.indexOf(";",deb);
         if (fin < 0) fin = document.cookie.length ;
         return (unescape(document.cookie.substring(deb,fin)));
         }
      return ('');
      }


   function tue_cook(nom) { cre_cook(nom,"",-1) }
   //Utiliser celle ci
   function litCook(nom) {
      c=lit_cook(nom);
      if (c === "")
        return(-1);
      else
        return(c);
      }