Bridge building turtle!

Hello programmers< I have built a code to make a bridge anywhere. But, the code has a problem. at line 86-87, there should be a end there that closes the function at 35. this makes no since to me as there is already a "end" closing the function. Can someone figure this out? thanks.

here is the Pastebin: http://pastebin.com/CfBucinY

I believe at 35

function stairDown()
turtle.select
)<<<<>>>>>>>>no end here

Budman's right, your first stairDown() doesn't have a closing "end". But the error message doesn't make any sense: There are only 82 lines in the program??