How do I create spoiler tag tags?

[Stalker0]

Hey guys, I wanted to lump a bunch of text into a button that only shows it when its clicked (like the spoiler buttons you see on many forums). How do I do that?

 

[LightPhoenix]

sblock in brackets, like so:

[sblock]Whoa![/sblock]

 

[Piratecat]

Stalker, quote LightPhoenix's post if you want to see exactly how they're used.