sidebar_ends, sidebar_start hooks

Hi!

I am writing an ad-plugin, and would like to be able to show up the ads in several places. One of them is the end of the sidebar. But as I see there is no hook for it.

Could you rewrite the get_sidebar function in wp-includes/template-functions-general.php as

function get_sidebar() {
do_action('sidebar_starts');
if ( file_exists( TEMPLATEPATH . '/sidebar.php') )
load_template( TEMPLATEPATH . '/sidebar.php');
else
load_template( ABSPATH . 'wp-content/themes/default/sidebar.php');
do_action('sidebar_ends');
}


I think that this could be helpful for a lot of plugin devs!