Collapse/Expand panel

[anand.neeli]

Hi Experts,

I'm fairly new to vb.net.
Can anybody tell me how can i create Collapse/Expand panel like the one shown in this link
OBOUT - ASP.NET Splitter - Collapse/Expand Panel example

plz explain me how to do this, or point me to any link which explains this. (was not able to google this )

Thanks
AKN