function ClosePopup() {

    if (!popupLoaded) return false;



    $lu('#overlay').remove();

    $lu('#popup').remove();

        

    popupLoaded = false;     

}



$lu(document).ready(function() {

    // Close popup if close button clicked

    $lu('a.close').live('click', function(e) {

        e.preventDefault();

        ClosePopup();

    });

    

    // Close popup if overlay clicked

    $lu('#overlay').live('click', function(e) { ClosePopup(); });

    

    // Close popup if ESC key pressed

    $lu(document).keyup(function(e){

        if (e.keyCode == 27 && popupLoaded) ClosePopup();

    });

});