Fixed button position in browser window

[many_tentacles]

Hi

I want to have a button which is permanently visible at the bottom right of the browser window and does not move when the rest of the page is scrolled.

Could anyone point me in the right direction as to how this can be done without using frames.???

Thanks

Tom

[crows]

Im totally new to web design but I remember reading something about persistant layers,see how you go.