Help Coding Speedhack - New to Lua

function addCmds( cmd )
	concommand.Add("orion_sh 1", speedhackOn)
	concommand.Add("orion_sh 0", speedhackOff)
end

function speedhackOn() -- Starting the On Function
	local ply = LocalPlayer() -- Getting Ourselves
	ply:SetRunSpeed 2500 -- Sets the Player's RunSpeed Variable to 2500, mega fast
end

function speedhackOff() -- Starting the Off Function
	local ply = LocalPlayer() -- Getting Ourselves
	ply:SetRunSpeed 500 -- Returns the Player's RunSpeed Variable to 500, the default
end