Locked door with two Computers

Hey guys,

I was about to build a big door with two computers, one before and one behind the door.
-> http://pastebin.com/1MQX4dis
The computers are freezing after I type in the correct password. I am new to lua and computercraft, but I know the basics of Java.
I hope that someone can help me with this problem. :)/>

They're not freezing, they're waiting for a rednet message from (I assume) the other computer. If they're both using the same program, that will never happen, since neither of them will ever send a rednet message until they have received one.

Ah okay.. Yes they are both using nearly the same code. Can you help me to make this code working?