incrediBILL - 5:44 pm on Mar 30, 2011 (gmt 0)
if it's a FF 4 thing I'd go report the bug to them then because I found lots of little quirks in FF 4 and bailed on it.
BTW, why do both of you use the ID attribute instead of the NAME attribute?
I trust W3C's definition of this: [w3schools.com...]
Although ID might work, NAME is what it's always supposed to have been for this purpose if I'm not mistaken.