Difference between webbrowser.refresh and webbrowser.refresh2

What is the difference between the two and what are the levels in webbrowser.refresh2 means and what are their puspose?

I hope somebody would enlighten me on this....

The first simply reloads the page.
The second is the same but has a parameter to specify the refresh level :)

Edit: Spelling errors everywhere....

Cheers,

RyanJ

Refresh2 :)