/*
    改变站点
  */

        function getId(id) {
            return document.getElementById(id);
        }

        function showMenu(baseID, divID) {
            baseID = getId(baseID);
            divID = getId(divID);
            if (showMenu.timer) clearTimeout(showMenu.timer);
            hideCur();
            divID.style.display = 'block';
            showMenu.cur = divID;
            if (!divID.isCreate) {
                divID.isCreate = true;
                divID.onmouseover = function() {
                    if (showMenu.timer) clearTimeout(showMenu.timer);
                    hideCur();
                    divID.style.display = 'block';
                };

                function hide() {
                    showMenu.timer = setTimeout(function() { divID.style.display = 'none'; }, 500);
                }

                divID.onmouseout = hide;
                baseID.onmouseout = hide;
            }
            function hideCur() {
                showMenu.cur && (showMenu.cur.style.display = 'none');
            }
        }