Hi im making a map for my server and i have this little file that tells me different object/car id's, but i want a gate like is on the police stations in gta sa that opens and closes, i couldnt find it in my object file because i didnt know what it was called and tried all sorts, so can some one please tell me the object id for this police gate?? thanks in advance.

Edit: im a complete noob at this forum i should of put it in Deathmatch serverside... where ever that is...