//탑 움직이는 버튼

        var _scroll_topmargin=217;        // 이동 메뉴의 상단 한계 픽셀
        var _scroll_ing_topmargin=30;         // 움직이는 도중의 상단과의 간격
        var _scroll_activate_speed=100;        // 초기 움직임을 감지하는 시간차이 (1/1000초)
        var _scroll_ing_activate_speed=5;        // 움직이기 시작한 이후에 감지하는 시간차이 (1/1000초)

        var isDOM = (document.getElementById ? true : false); 
        var isIE4 = ((document.all && !isDOM) ? true : false);
        var isNS4 = (document.layers ? true : false);

        function getRef(id) {
                if (isDOM) return document.getElementById(id);
                if (isIE4) return document.all[id];
                if (isNS4) return document.layers[id];
        }

        var isNS = navigator.appName == "Netscape";

        function moveRightEdge() {
                var yMenuFrom, yMenuTo, yOffset, timeoutNextCheck;
                if (isNS4) {
                        yMenuFrom   = divMenu.top;
                        yMenuTo     = windows.pageYOffset+_scroll_ing_topmargin;
                } else if (isDOM) {
                        yMenuFrom   = parseInt (divMenu.style.top, 10);
                        yMenuTo     = (isNS ? window.pageYOffset : document.body.scrollTop)+_scroll_ing_topmargin;
                }
                if(yMenuTo<_scroll_topmargin) yMenuTo = _scroll_topmargin;

                timeoutNextCheck = _scroll_activate_speed;

                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 = _scroll_ing_activate_speed;
                }
                setTimeout ("moveRightEdge()", timeoutNextCheck);
        }


if (isNS4) {
        var divMenu = document["divMenu"];
        divMenu.top = top.pageYOffset + _scroll_topmargin;
        divMenu.visibility = "visible";
        moveRightEdge();
}
else if (isDOM) {
        var divMenu = getRef('divMenu');
        divMenu.style.top = (isNS ? window.pageYOffset : document.body.scrollTop) + _scroll_topmargin;
        divMenu.style.visibility = "visible";
        moveRightEdge();
}