function getRootPath() {
     var curWwwPath = window.document.location.href;
     var pathName = window.document.location.pathname;
     //    console.log(pathName);
     var pos = curWwwPath.indexOf(pathName);
     var localhostPath = curWwwPath.substring(0, pos);
     // 这种写法,限制项目名称必须包含gamesys,wg
     var projectName = pathName.substring(0, pathName.substr(0).lastIndexOf('gamesys/')) + 'gamesys/';
     //    console.log(projectName);
     projectName = projectName.substring(0, projectName.substr(0).lastIndexOf('/') + 1);
     return localhostPath + projectName;
 }

 function getProviderUrl(tag) {
     return getRootPath() + "app/providers/" + tag + ".php";
 }

 /**
  * 获取cookies
  * @param {Object} name
  */
 function getCookie(key) {
     var arr = document.cookie.match(new RegExp("(^| )" + key + "=([^;]*)(;|$)"));
     if (arr != null) {
         return unescape(arr[2]);
     } else {
         return null;
     }
 }

 /**
  * 向服务端post数据
  * @param {Object} url
  * @param {Object} body
  * @param {Object} suc
  */
 function post(url, body, suc) {
     body.account = getCookie("account");
     $.ajax({
         type: "post",
         url: url,
         async: true,
         data: body,
         success: function(token) {
             // 解析回传的数据
             //alert(token);
             token = JSON.parse(token);
             if (token.err == 0) {
                 suc(token.data);
             } else {
                 onError(token);
             }
         }
     });
 }

 function onError(token) {
     if (token.err == 6001) {
         alert(token.errMsg);
         location.href = "login.html";
     }
 }