Prosty skrypt .toggle()

[jingels]

Proszę o pomoc. Poniżej skrypt rozsuwania boxów po kliknięciu przycisku czytaj więcej. Potrzebuję dodać do skryptu funkcje .toggle aby po kliknięciu podmieniał się tekst czytaj więcej / zwiń ( .toggle).

Link do strony z funkcją: http://www.pawelskiba.ifirma.info/program.html

Kod:

function odpal(id){
(function($){
$('#opis-'+id).slideToggle();
})(jQuery);
}

Kod:

<div class="porgram-point-fade program-point">
                                <div id="opis-4">
                                <p>
                                Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum
                                </p>
                                </div>
                                <div class="klik text" onclick="odpal(4)">czytaj więcej</div>
            </div>
<div class="porgram-point-fade program-point">
                                <div id="opis-4">
                                <p>
                                Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum Lorem ipsum
                                </p>
                                </div>
                                <div class="klik text" onclick="odpal(4)">czytaj więcej</div>
            </div>