function RootPath() {
    var strFullPath = window.document.location.href;
    var strPath = window.document.location.pathname;
    var pos = strFullPath.indexOf(strPath);
    var prePath = strFullPath.substring(0, pos);
    var postPath = strPath.substring(0, strPath.substr(1).indexOf('/') + 1);
    //return (prePath + postPath);如果发布IIS，有虚假目录用用这句
    return (prePath);
}
function AjaxJson(url, postData, callBack) {
    $.ajax({
        url: RootPath() + url,
        type: "post",
        //contentType:"application/json",
        data: postData,
        dataType: "json",
        async: false,
        success: function (data) {
            if (data.Code == "-1") {
                //Loading(false);
                dialogAlert(data.Message, -1);
            } else {
                //Loading(false);
                callBack(data);
            }
        },
        error: function (data) {
            //Loading(false);
            dialogAlert(data.responseText, -1);
        }
    });
}