[jQuery] load and unload site

[clicforw...@googlemail.com]

Hello,

im loading external site like this.
$('a#link').click(function(){
        $("#playGround div").load("http://www.mysite.de";);
        return false;
        });

how can i unload this site?
i tried:

$("#playGround div").remove(html);

and:

$("#playGround div").unload(html);

but both is not working!?

Thanks for Help