"Goto" command?

local version =
0.01
local pastebinlink = "5rALib9G" --The pastebin "code"
local password = "123bacon" -- The password required to unlock the computer
trys = 3 -- The number of trys before anti bruteforce
bruteforcetime = 18 -- The amount of time the antibruteforce should take


--check version by Cranium
term.clear()
term.setCursorPos(1,1)
print("Program loading...")
print("Current version: "..version)
local updateSite = http.get("http://pastebin.com/raw.php?i="..pastebinlink)
updateSite.readLine()
local coding = updateSite.readLine()
local newVersion = (tonumber(coding))
sleep(2)
if tonumber(newVersion) > version then
		print("Newest version is: "..newVersion)
		print("Update required. Updating now...")
		local updateSite = http.get("http://pastebin.com/raw.php?i="..pastebinlink)
		local siteFile = updateSite.readAll()
		local writeFile = fs.open(shell.getRunningProgram(),"w")
		writeFile.write(siteFile)
		writeFile.close()
		print("The program will now restart your computer.")
		sleep(2)
		os.reboot()
end

--Password protection
tryerror = trys
locked = true
while locked == true do
		term.clear()
		term.setCursorPos(1,1)
		print("Please enter the password:")
		input = read("*")
		if input == password then
				print("Welcome")
				tryerror = trys
				sleep(1)
				locked = false
		else
				print("PASSWORD INCORRECT!")
				tryerror = tryerror - 1
				sleep(2)
				if tryerror < 1 then
						print("Brute Force Detected")
						sleep(bruteforcetime)
						tryerror = trys
				end
		end
end

--Beyond protection
term.clear()
term.setCursorPos(1,1)
print("+--------------------{NewkOS}--------------------+\n")

input = read()
if input == "version" then
		print("Current version: "..version)
elseif input == "lock" then
		locked = true
end

local version =
0.06
local pastebinlink = "5rALib9G" --The pastebin "code"
local password = "123bacon" -- The password required to unlock the computer
trys = 3 -- The number of trys before anti bruteforce
bruteforcetime = 18 -- The amount of time the antibruteforce should take


--==check version by Cranium==--
function versioncheck()
		term.clear()
		term.setCursorPos(1,1)
		print("Program loading...")
		print("Current version: "..version)
		local updateSite = http.get("http://pastebin.com/raw.php?i="..pastebinlink)
		updateSite.readLine()
		local coding = updateSite.readLine()
		local newVersion = (tonumber(coding))
		sleep(2)
		if tonumber(newVersion) > version then
				print("Newest version is: "..newVersion)
				print("Update required. Updating now...")
				local updateSite = http.get("http://pastebin.com/raw.php?i="..pastebinlink)
				local siteFile = updateSite.readAll()
				local writeFile = fs.open(shell.getRunningProgram(),"w")
				writeFile.write(siteFile)
				writeFile.close()
				print("The program will now restart your computer.")
				sleep(2)
				os.reboot()
		end
end


--==Password protection function==--
function locked()
		tryerror = trys
		locked = true
		while locked == true do
				term.clear()
				term.setCursorPos(1,1)
				print("Please enter the password:")
				input = read("*")
				if input == password then
						print("Welcome")
						tryerror = trys
						sleep(1)
						locked = false
						term.clear()
						term.setCursorPos(1,1)
						print("+--------------------{NewkOS}--------------------+n")
						unlocked()
				else
						print("PASSWORD INCORRECT!")
						tryerror = tryerror - 1
						sleep(2)
						if tryerror < 1 then
								print("Brute Force Detected")
								sleep(bruteforcetime)
								tryerror = trys
						end
				end
		end
end


--==Beyond protection function==--
function unlocked()
		input = read()
		if input == "version" then
				print("Current version: "..version)
				unlocked()
		elseif input == "lock" then
				locked = true
		elseif input == "shutdown" then
				os.shutdown()
		elseif input == "reboot" then
				os.reboot()
		end
end


--==starting==--
versioncheck()
locked()