'(' expected

I’m making a beat 'em up style game where you click a button and your character attacks…
heres my problem. on the button named ‘punch’ i want it so when you enter a certain frame on the ‘ragebar’ the enemy starts to go red.
i think i got the code right

on (release)
{_root.joe.gotoAndPlay(Punch);}
on {_root.ragebar.enterFrame(‘red1’); gotoAndPlay(‘gored’);}

but it keeps saying ‘(’ expected
and no matter what i do, it says the same thing OR says other things are wrong and the ‘(’ expected again…

help would be greatly apprectiated.
Thanks.