I don't know how, but from a day to other, Opera give me error on jQuery file when I use this kind of selector: :eq(x) , :visible, : first, :last, everythink whit ":" , but if I skip error it work correctly.
For exemple this:
- $("#argument_cont li:eq("+current+") a")
this kind of error is returned from try-catch statement at line 3530 of jquery-1.4.2.js and is normal, if there is error it's catched. With Firefox nothing work and it freeze and Firebug don't find any error (last FF version on linux, mac and windows ... same problem).
I restored some old version but nothing work on FF (two day ago the same code was working)
Safari: no error an everythings work.
Chorme: no error an everythings work.
IE8 return error on different line then Opera, but is working
I ask myself: how it is possibile?