IE_Refresh

This little AppleScript is a stay-open applet that uses JavaScript with Internet Explorer to refresh all open windows except the frontmost window after a configurable amount of time.

If only one window is open, it will be refreshed.
What's new in this version:
The script now tries to restore the scrolling positions of the reloaded windows.
Known bugs: The OS X version is very slow, if Internet Explorer is not the foreground application.