Thickness Routine

I am using Control Logix with Studio 5000 software and have a routine that compares the number between 8 different lasers and takes the smallest number and uses it as the final thickness of a board. What would be the easiest way to take the second smallest number and not the smallest?

'Smallest' = max possible reading, 'Second' = max possible reading.

For laser_reading = 1 to 8

If laser_reading < 'Smallest' then
'Second' = 'Smallest
'Smallest' = laser_reading

Else if laser_reading < 'Second'
'Second' = laser_reading

Next laser


Or just use a sort routine and pick what you want.