Wordpress Archives in Dropdown Listbox

[DaHLiA]

Hi again mates,

Does anyone know how to make the archives to be displayed in drop down list box format?

As of now in one of my sidebars, I have the below code

PHP Code:

<ul>
      <?php get_archives('postbypost', 6); ?>
</ul>

This displays all my archives as unordered lists inside a block.
I want to know what changes should I do to the above line to make my archives display in the drop down listbox format.

Any guidance would be great!
Thanks!