[err] Keep getting [string "quarry"]:12: '=' expected error

function digfloor()
	local i=0
	local j=1
	local forward=true
	while j>11 do
	  j=j+1
	   while i>10 do
		 i=i+1
		 turtle.forward()
		 turtle.dig()
	   end
	 If forward==true then
	   turtle.turnLeft()
	   turtle.dig()
	   turtle.forward()
	   turtle.turnLeft()
	   forward=false
	 else
	   turtle.turnRight()
	   turtle.dig()
	   turtle.forward()
	   turtle.turnRight()
	   forward= true
	 end
   end
end
local i=0
local y=rednet.receive() --gives the ability to start the process wirelessly
If y=="quarry" then
   while i<4 do
	i=i+1
	digfloor()
   end
end