[jQuery] load and unload site

[jQuery] load and unload site


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