function checkEmail() {
    var mail = document.getElementById("EmilAddressNameEN")
    if (mail.value.length == 0) {
        alert('Your email address is empty.');
        mail.focus();
        return false;
    }
    if (mail.value.search("^(?:\\w+\\.?)*\\w+@(?:\\w+\\.?)*\\w+$") != 0) {
        alert('Email address is not correct.');
        mail.select();
        mail.focus();
        return false;
    }
}

function ajaxRequestEmail()
{ 
$.ajax
(
{
    type:"get",
    url:"ajaxRequest.aspx",
    data:"mode=2&userEmail="+escape($("#EmilAddressNameEN").val()),
    success:
    function(msg)
    {
     $("#EmailTip").html(msg);
    },
    error:
    function()
    {
    alert('Request error,please try again!');
    },
    onwait :$("#EmailTip").html("Verifying Email Please wait..."),
    tiemout:
    function()
    {
    alert('Request overtime,please try again!');
    }
}
);
}