ver = navigator.appVersion.substring(0,1)
If (ver >= 4)
    {
   	var Preload = document.getElementById("preload-slideshow"); 
    var navi = (navigator.appName == "Netscape" && parseInt(navigator.appVersion) >= 4);
    var HIDDEN = (navi) ? 'hide' : 'hidden';
    var VISIBLE = (navi) ? 'show' : 'visible';
    var cache = (navi) ? document.cache : document.all.cache.style;
    largeur = screen.width;
    cache.left = Math.round(100);
    cache.visibility = VISIBLE;
    }
Function cacheOff()
    {
    If (ver >= 4)
        {
        cache.visibility = HIDDEN;
        }
    }