Pololu 6ch script for button

what is the script to make a button on channel 0, make a servo on channel 1 move all the way to one side then return to the middle?

this should to the trick.

 0 get_position 500 less_than if movement endif		

sub movement
  8000 1 servo  #8000 is the maximum value it goes to, change it to your needs
  500 delay      
  5000 1 servo  #5000 is the middle value, change it to your needs
  500 delay

ok how would i code it if i want one switch to contol the servo’s left movment and another switch to control the servos right movment?