var mall = {
            $: function(objName) { if (document.getElementById) { return eval('document.getElementById("' + objName + '")') } else { return eval('document.all.' + objName) } },
            isIE: navigator.appVersion.indexOf("MSIE") != -1 ? true : false,
            addEvent: function(obj, eventType, func) { if (obj.attachEvent) { obj.attachEvent("on" + eventType, func); } else { obj.addEventListener(eventType, func, false) } },
            delEvent: function(obj, eventType, func) { if (obj.detachEvent) { obj.detachEvent("on" + eventType, func) } else { obj.removeEventListener(eventType, func, false) } }
        };
        function ocSearchSelectOption() {
            if (mall.$("chgSearchSelectOptionIHT").value == "0") {
                mall.$("chgSearchSelectOption").style.display = "block";
                mall.$("chgSearchSelectOptionIHT").value = "1";
                mall.addEvent(document.body, "click", ClickOther);
            } else {
                ocSearchSelectClose();
            }
        };
        function ClickOther(e) {
            thisObj = e.target ? e.target : event.srcElement;
            do {
                if (thisObj.id == "SearchSelect") return;
                if (thisObj.tagName == "BODY" || thisObj == null) { ocSearchSelectClose(); return; };
                thisObj = thisObj.parentNode;
            } while (thisObj.parentNode);

        };
        function ocSearchSelectClose() {
            mall.$("chgSearchSelectOption").style.display = "none";
            mall.$("chgSearchSelectOptionIHT").value = "0";
            //sina.delEvent(document.body, "click", ClickOther);
        }
        function chgSearchSelectOption(Id) {
            if (Id == 1) {
                mall.$("SearchSelectOptionInner1").innerHTML = "网页";
                hiddenObj("sbox_iask");
                showObj("sbox_google");
                mall.$("chgSearchSelectOption").style.display = "none";
                mall.$("chgSearchSelectOptionIHT").value = "0";
            } else {
                mall.$("SearchSelectOptionInner1").innerHTML = "新闻";
                hiddenObj("sbox_google");
                showObj("sbox_iask");
                mall.$("chgSearchSelectOption").style.display = "none";
                mall.$("chgSearchSelectOptionIHT").value = "0";
            }
        }
        /* 搜索 begin */
        document.gform.q.value = "请输关键词";
        document._searchiask.k.value = "请输关键词";
        document.gform.q.onfocus = function() {
            checkGoogleValue();
        };
        document._searchiask.k.onfocus = function() {
            document._searchiask.k.value = "";
        };
        document.gform.onsubmit = function() {//提交Google搜索表单
            return checkGoogleValue();
        };
        document._searchiask.onsubmit = function() {//提交iAsk搜索表单
            return checkiask();
        };
        mall.$("sbox_change_google").onclick = function() {//处理GoogleLogo点击行为
            submitFormWithChannel("tlogo");
        };
        //切换搜索 begin
        var OpenSearch = 1; //默认开启的搜索引擎，1为google，2为iask;
        function chgSearchBox(sId) {
            if (sId == 1) {
                hiddenObj("sbox_iask");
                showObj("sbox_google");
            } else {
                hiddenObj("sbox_google");
                showObj("sbox_iask");
            }
        }
        function hiddenObj(a) {
            mall.$(a).style.display = "none"
        }
        function showObj(a) {
            mall.$(a).style.display = "block"
        }
        chgSearchBox(OpenSearch); //设置默认开启
        function submitFormWithChannel(a) {
            if (document.gform.q.value == "请输关键词" || document.gform.q.value == "请输入关键字" || document.gform.q.value == "") {
                document.gform.q.value = "";
                document.gform.channel.value = a;
                document.gform.submit()
            } else {
                document.gform.channel.value = a;
                document.gform.submit();
                return
            }
        }
        function checkGoogleValue() {
            if (document.gform.q.value == "请输关键词" || document.gform.q.value == "请输入关键字" || document.gform.q.value == "") {
                document.gform.q.value = ""
            }
            document.gform.channel.value = "tsearch";
            return true
        }
        function checkiask() {
            if (document._searchiask.k.value == "请输关键词" || document._searchiask.k.value == "") {
                window.open("http://n.iask.com");
                return false
            }
            return true
        }