Command button to Hide a tab and unhide a tab with a password

Hi, I'm a newbie here as far as posting, but I've gotten some great advice from other threads, but I can't find anything that will work for what I'm trying to do now.

I have a spreadsheet with several tabs. I would like one tab (the Setup tab) to be hidden so that our customers do not have access to it. However I need to keep the tab on the spreadsheet as it feeds information into the other tabs, and our employees will need to have access to the tab frequently.
I would like 1 command button that will hide tab when clicked.
I would like another button to unhide the tab after requesting a password.
Any help would be greatly appreciated.

See royUks work here

http://www.excelforum.com/excel-prog...-tabs-vba.html