dynamic menu possible?

Hi all. I was wondering if a situation I'll describe below is possible. If it is, I'm hoping someone could point me to the topics I would need to study to learn how to do it. I hate to say that right now I don't have the time to read the Manual or any books cover-to-cover to figure it out...but I do want to learn how to do things on my own. So if someone could just tell me what the items I'd need to study are called, I'd really appreciate it. What I want to do is have a drop-down menu where the options are files located in a folder on the server that changes as items are added to or removed. Then the user can select an item from the menu, submit, and that page will load. Did that make sense? So I have 1.htm and 2.htm and 3.htm in a folder. A selectable menu reads the folder and lists those three files as options. The user can click on it and submit and that page will load. And if I add 4.htm, the menu will add that to the drop down on its own. That that's not possible, how close can I get to something like that? An example of something close to that I found on www.megatokyo.com . They have a dropdown menu where a user selects an item and gets sent to that page. A URL from one attempts shows as http://www.megatokyo.com/index.php?date=2001-09-04 . How is that done? Again, if I could just be pointed to the related PHP concepts I'll take it from there. Thanks!!!!! Liam www.celticbear.com