[jQuery] parent of "this"

Hello,
i need get the this's parent div, something like this:
<div>
<a href="#" class="close">Close</a>
</div>
and in code..
$(".class a").click(function(){
$(this < div).slideUp(); //here
});
that way many buttons will work with no ids and with the same code!
how can i do it?
i don't wanna use ids...
sorry my bad english
thanks!