toggleTabs:
        function(e) {
            var elEvent = e || window.event;
            var elTarget = null;
            if (elEvent) {
                elTarget = elEvent.target;
                if (elTarget == null)
                    elTarget = elEvent.srcElement;

                // Ignore event if shopper clicks on active tab.
                if (elTarget && elTarget.className != "tab_on") {
                    var id = elTarget.id;
                    if (id.indexOf(ProStores.Detail.ID_DIV_TAB) != -1) {
                        var nIdx = id.substring(ProStores.Detail.ID_DIV_TAB.length);

                        for (var i = 0; i < ProStores.Detail.nTabCount; i++) {
                            var j = i + 1;
                            var strClassName = "tab_off";
                            var elDesc = _(ProStores.Detail.ID_DIV_DESC + j);
                            if (elDesc) {
                                if (j == nIdx)
                                    elDesc.style.display = "inline";
                                else
                                    elDesc.style.display = "none";
                            }
                            var elTab = _(ProStores.Detail.ID_DIV_TAB + j);
                            if (elTab) {
                                if (j == nIdx)
                                    elTab.className = "tab_on";
                                else
                                    elTab.className = "tab_off";
                            }
                        }
                    }
                }
            }
        },