Show/Hide Tab Controls in Firefox bugs

hi all folks,

i need your help. please..
i use this tab controls and i use show/hide layer but got bugs

take a look at this picture.

http://www.geocities.com/mr.putera/firefox.jpg

help me folks.. how do i settle this. in IE its ok.

Maybe you should add overflow:hidden rule to the DIV?

thanks Alex. its work!