Quick ASP.NET page fix

I have a page which I need fixed to have some dynamically generated content shown when a user clicks the header of the content. There are a number of tables created which are hidden and one which is visible. What I need is to have the one clicked shown while the others are hidden. This is a very urgent project that needs to be done by today. If you can't meet this deadline please don't bid. Please view attached files before bidding.