... and - this is a very common question. So common in fact that there is a post (permanently) near the top of this forum http://www.coade.com/ubbthreads/ubbthreads.php?ubb=showflat&Number=9084&page=1#Post9084 that discusses this exact question.

You can also find the answer to many question by using the [Search] option, located just above the Calendar to the right. (Note, the [Search] option is only available if you're logged in.)