function testmail(mail) 
{
    var emailReg = "^[\\w-_\.]*[\\w-_\.]\@[\\w]\.+[\\w]+[\\w]$";
    var regex = new RegExp(emailReg);
    return regex.test(mail);
};

function ajaxsubscribe() {
    $('#ajaxresult').removeClass("error-message");
    $('#ajaxresult').removeClass("ok-message");
    $('#ajaxresult').addClass("black");
    $('#ajaxresult').text('Pracuji ...');
    var email = document.getElementById("email").value;
    if (testmail(email)) {
        $('#ajaxresult').removeClass("black");
        $('#ajaxresult').addClass("ok-message");
        $('#ajaxresult').load('/jslibs/ajaxsubscribe/ajaxsubscribe_Adobe.aspx?email=' + email + '&random=' + new Date().getTime());
    }
    else {
        $('#ajaxresult').removeClass("black");
        $('#ajaxresult').addClass("error-message");
        $('#ajaxresult').load('/jslibs/ajaxsubscribe/ajaxsubscribe.aspx?email=' + email );
    }
};