<select id="ddlSomoveLanguage" onchange="chgLang();">  <option value="zh">中文</option><option value="en">ENGLISH</option>
 </select>

var name = "somoveLanguage";
/*server*/
var ctx = window.document.location.href.substring(0, window.document.location.href.indexOf(window.document.location.pathname));function chgLang() {  var value = $("#ddlSomoveLanguage").children('option:selected').val();$('#ddlSomoveLanguage option:selected').text();SetCookie(name, value);//location.reload();
}
function SetCookie(name, value) {var Days = 30; //此 cookie 将被保存 30 天  var exp = new Date();    //new Date("December 31, 9998");  exp.setTime(exp.getTime() + Days * 24 * 60 * 60 * 1000);document.cookie = name + "=" + escape(value) + ";expires=" + exp.toGMTString() +";path=/";
}
function getCookie(name)//取cookies函数
{var arr = document.cookie.match(new RegExp("(^| )" + name + "=([^;]*)(;|$)"));if (arr != null) {return unescape(arr[2])} else {return null;}
}
var optionList = $("#ddlSomoveLanguage option");
var optionLength = optionList.length;
// 画面加载的时候，执行方法
window.onload = function () {// 获得cookie，如果没有，默认为 zhvar value = getCookie(name);value = value == undefined ? "zh" : value;for (var i = 0; i < optionLength; i++) {// 匹配 value，如果相同 value 则 selected 选中if (optionList[i].value == value) {optionList[i].selected = "selected";}}
}
//console.log(getCookie(name));
$(function () {var uulanguage = (navigator.language || navigator.browserLanguage).toLowerCase();if (uulanguage.indexOf("en") > -1) {$("[data-localize]").localize("text", { pathPrefix: ctx + "/Content/lang", language: "en" });} else if (uulanguage.indexOf("zh") > -1) {$("[data-localize]").localize("text", { pathPrefix: ctx + "/Content/lang", language: "zh" });} else {$("[data-localize]").localize("text", { pathPrefix: ctx + "/Content/lang", language: "zh" });};if (getCookie(name) != "") {if (getCookie(name) == "zh") {$("[data-localize]").localize("text", { pathPrefix: ctx + "/Content/lang", language: "zh" });}if (getCookie(name) == "en") {$("[data-localize]").localize("text", { pathPrefix: ctx + "/Content/lang", language: "en" });}} });