Hi i am a newbee

can someone help me

The problem.

I have a big gate that i want to open and close true a radio controller thats only have one button. It`s one switch at the top and one at the bottom of the gate to tell when the gate is open or closed.. If you puch the button and the gate is down the gate must go up and, and down when the gate is at the topp.
But when the port is going down and you puch the button the port stops, and if you puch it again it`s going up and reverse.

if someone can make a simple program to me i wil be so happy.