Probel with lights going down
 

My Headlights wont go down, and its not in the switch. My brights also wont work. All this happened when a complete idiot hooked the battery cables up backwards for like 1/2 of a second. it didnt blow any fuses(at least none in the interior fuse block or the one on the left side of the engine) and the motors still work, cause when i put them down manually with the fuse still in they comne right back up, if i pull the main fuse, they stay down, as soon as i put it back in they come back up. Does any one have any ideas of what i should do? i thought it might have been in the headlight controls but its not. thanks