var isDOM = (document.getElementById ? true : false);
var isIE4 = ((document.all && !isDOM) ? true : false);
var isNS4 = (document.layers ? true : false);
var isNS = navigator.appName == "Netscape";
function getRef(id) {
        if (isDOM) return document.getElementById(id);
        if (isIE4) return document.all[id];
        if (isNS4) return document.layers[id];
}
var scrollerHeight = 150;
var puaseBetweenImages = 3000;
var imageIdx = 0;
function moveRightEdge() {
        var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;
        if (isDOM) {
                yMenuFrom   = parseInt (divMenu.style.top, 10);
                yMenuTo     = (isNS ? window.pageYOffset : document.body.scrollTop) + 289; // À§ÂÊ À§Ä¡
        }
        timeoutNextCheck = 300;
        if (yMenuFrom != yMenuTo) {
                yOffset = Math.ceil(Math.abs(yMenuTo - yMenuFrom) / 10);
                if (yMenuTo < yMenuFrom)
                        yOffset = -yOffset;
                if (isNS4)
                        divMenu.top += yOffset;
                else if (isDOM)
                        divMenu.style.top = parseInt (divMenu.style.top, 10) + yOffset;
                        timeoutNextCheck = 10;
        }
        setTimeout ('moveRightEdge()', timeoutNextCheck);
}