would it be possible for someone to offer a few code examples and advice please?

code to go into a button that slides a page into a specific area

can a div content change from a button clicked within that div? for example:

a button on the main page changes the content of a div. In that content is a set of buttons and by clicking one of them, the content on the main div will change or would i div down in tiers? (does that make sense?)

what code do i put into a page that is being displayed in a div

thanks

Nigel