function checkname() {
    var Msg = document.getElementById("email");
    var chk = CheckN();
    if (chk) {
        $.ajax({ url: 'memberOK.aspx',
            type: 'POST',
            data: { username: $("#username").val() },
            dataType: 'html',
            timeout: 1000,
            error: function() { alert('An unknown error occurred!'); },
            success: function(data) {
                if (data == "Sorry,the email has been registered!") {
                    Msg.innerHTML = data;
                }
                if (data == "E-mail can register!") {
                  Msg.innerHTML = data;
                }
                if (data == "Please enter the email!") {
                   Msg.innerHTML = data;
                }
            }
        });
    }
}
    
    function CheckN() {
    var Msg = document.getElementById("email");
    var chk = true;
    var myreg = /^([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+@([a-zA-Z0-9]+[_|\_|\.]?)*[a-zA-Z0-9]+\.[a-zA-Z]{2,3}$/;
    if (!myreg.test(document.getElementById("username").value)){
        Msg.innerHTML = "E-mail Error!";
        chk = false;
    }
    return chk;
}

function chk_reguser() {
    var chk = true
    if (!CheckN()) {chk = false;}
    if ($("#hiddencheckname").val() == "no") { chk = false; }//这个是对其判断
    if (chk) 
    {       
          window.location.href = "register.aspx";
    }
    return (false);
}