Horizontal menu, simple bug

i have az AS problem, and i can’t make the next step becouse I don’t now where’s the problem.
When I roll over on a menu item, I want the previous menu’s submenu to close
and I think the problem is somewhere here…
_root[_root.cursel].gotoAndPlay(“back”);

if somebody can help me…it would be :thumb2:
the link for FLA(zip) and the SWF

http://woney.net/domi/a.zip

http://woney.net/domi/a.swf