How do I reset the position of scroll-able content back to the top of the page/symbol?

Hi all,

I have a project with lots of content delivered in multiple scroll windows. The user can close adn reopen these windows as they choose.

The problem is I want to reset the content of the scroll box to the top of the scroll-able page/ symbol each time its revisited – currently it remembers the position where that user left off and this isn't what we want.

Thanks in advance.
Shaun