网页校验

var CheckData = function () {

        var accountname = $("#AccountName").val();
        var accounttype = $("#AccountType").val();
        var mobile = $("#ContactPersonMobile").val();
        var email = $("#ContactPersonEmail").val();

        var regionid = $("#RegionID").val();
        var provinceid = $("#ProvinceID").val();
        var cityid = $("#CityID").val();

        var checkcode = $("#License").val();

        var ErrorMes = "";

        if (accountname.length == 0) {
            ErrorMes = "客户名称不能为空！
";
            $("#AccountName").focus();
            //return false;
        }
        if (accounttype.length == 0) {
            ErrorMes += "请选择客户类别！
";
            $("#AccountType").focus();
            //return false;
        }
        if (regionid.length == 0 || provinceid.length == 0 || cityid.length == 0) {
            ErrorMes += "请选择地域信息！
";
            $("#RegionID").focus();
            //return false;
        }
        if (email.length == 0) {
            ErrorMes += "邮箱不能为空！
";
            $("#ContactPersonEmail").focus();
            //return false;
        }
        if (mobile.length == 0) {
            ErrorMes += "手机不能为空！
";
            $("#ContactPersonMobile").focus();
            //return false;
        }
        if (checkcode.length == 0) {
            ErrorMes += "请输入验证码！";
            $("#License").focus();
            //return false;
        }

        if (ErrorMes != "") {
            $("#showErr").html("<font color=red>          系统提示信息：" + ErrorMes + "</font>");
            alert(ErrorMes);
            return false;
        }

        return true;

 $("#submit").click(function () {
            var accountName = document.getElementsByName('AccountName');
            if (accountName[0].value == "") {
                alert("@res.CreateOperate_Content1");
                return false;
            }