Scrolling within a div, do not affect main scrollbar?

Question

I have a div with a vertical scrollbar, with a main window scrollbar. when i'm scrolling within the div, and it reaches the end of the scroll, it will then affect the main scroll bar.

Is is possible to set any scrolls within the div to not affect the main scroll bar?

Oh, and the best part is that, i'm using facebook canvas, which mean i have no access to the main scrollbar.