js给隐藏控件赋值的问题

Question

js代码：
       function f_check_IP() {
            var ip1 = document.getElementById('TextBox1').value;
            var ip2 = document.getElementById('TextBox2').value;
            var r = /^(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])\.(\d{1,2}|1\d\d|2[0-4]\d|25[0-5])$/;
            if (r.test(ip1) && r.test(ip2)) {
                document.getElementById('Label2').innerHTML = "1";
                return true;
            }
            else {
                alert("请输入正确的IP地址！");
                document.getElementById('Label2').innerHTML = "2";
                return false;
            }
        }
后台：
     Label lbl = Page.FindControl("Label2") as Label;
            if (lbl.Text == "1")
            {
                Response.Write("成功！");
            }
            else
            {
                Response.Write("失败！");
            }
问题是lbl.text总是空字符串 取不到值  这是为什么呢？

Answer 1

后台直接lable.text不就可以了啊。