Difference between setTimeout(fn, 0) and setTimeout(fn, 1)?

[weedbreath]

The jquery source features uses of \[code\]setTimeout\[/code\] with both \[code\]0\[/code\] and \[code\]1\[/code\] as second argument. I'm under the impression that they both mean "execute the function as soon as you can".Is this correct? Is there a difference between the two?