function cvUsername_Validate(obj, args)
{
    var username = getUserName();
    var password = getPassword();

    if (username == '' && password != '') {
        args.IsValid = false;
        loadPopup('.popupContact');
    } else {
        args.IsValid = true;
    }
}

function cvPassword_Validate(obj, args)
{
    var username = getUserName();
    var password = getPassword();
    
    if (username != '' && password == ''){
        args.IsValid = false;
        loadPopup('.popupContact');
    }else{
        args.IsValid = true;
    }
}

function cvUserPass_Validate(obj, args)
{
    var username = getUserName();
    var password = getPassword();
    
    if (username == '' && password == ''){
        args.IsValid = false;
        loadPopup('.popupContact');
    }else{
        args.IsValid = true;
    }
}

function getUserName() {
    if ($("#ctl00_loginRegister_txtUsername").val() != null) {
        return $find("ctl00_loginRegister_tbweUsername").get_Text().trim();
    } else {
        return $find("ctl00_ctl00_loginRegister_tbweUsername").get_Text().trim();
    }
}

function getPassword() {
    if ($("#ctl00_loginRegister_txtPassword").val() != null) {
        return $find("ctl00_loginRegister_tbwePassword").get_Text().trim();
    } else {
        return $find("ctl00_ctl00_loginRegister_tbwePassword").get_Text().trim();
    }
}

$(document).ready(function()
{
    $("#login .username").keydown(login_textbox_keydown);
    $("#login .password").keydown(login_textbox_keydown);
});

function login_textbox_keydown(event)
{
    if (event.keyCode == 13)
    {
        eval($("#login .sign").attr('href'));
    }
}