if (isNS4) { 
        var divMenu = document["divMenu"]; 
        divMenu.top = top.pageYOffset + 100; 
        divMenu.visibility = "visible"; 
        moveRightEdge(); 
} else if (isDOM) { 
        var divMenu = getRef('divMenu'); 
        divMenu.style.top = (isNS ? window.pageYOffset : document.body.scrollTop) + 100; 
        divMenu.style.visibility = "visible";
        moveRightEdge();
}