Return On Click

So I have a ifelse statement. What I want is at the end of all the code for the text to blink and say press and button to return and it will return to the menu. Any simple ways to do this?

Also off topic, how would I make a function that overrides what I was doing?

Any more details? What's your current code?
I don't really understand what you want.

Yeah, that was written rather quickly. Let me paste some code.

if p == "1" then
    term.clear()
    term.setCursorPos(1,1) 
    textutils.slowPrint("Loading Mainframes...")
    sleep(3)
    print()
    textutils.slowPrint("Loading Subsystems...")
    sleep(2)
    print()
    textutils.slowPrint("Starting Cooling Systems...")
    sleep(2)
    bOut = colors.combine(bOut, colors.brown)
    rs.setBundledOutput("bottom", bOut)
    sleep(2)
    print()
    textutils.slowPrint("Starting Reactor...")
    sleep(2)  
    bOut = colors.combine(bOut, colors.lightBlue)
    rs.setBundledOutput("bottom", bOut)
    sleep(2)
    print()
    textutils.slowPrint("Reactor Successfully Started")
    return

So this is one of my if statements. What I want is for at the end where return is. I want it to say "Press Any Button To Return". If theres a simple way to make it blink that would be cool to but not required. So that will appear and when any button is pressed it will return to the menu just as the normal return would.

if p == "1" then
    term.clear()
    term.setCursorPos(1,1)
    textutils.slowPrint("Loading Mainframes...")
    sleep(3)
    print()
    textutils.slowPrint("Loading Subsystems...")
    sleep(2)
    print()
    textutils.slowPrint("Starting Cooling Systems...")
    sleep(2)
    bOut = colors.combine(bOut, colors.brown)
    rs.setBundledOutput("bottom", bOut)
    sleep(2)
    print()
    textutils.slowPrint("Starting Reactor...")
    sleep(2) 
    bOut = colors.combine(bOut, colors.lightBlue)
    rs.setBundledOutput("bottom", bOut)
    sleep(2)
    print()
    textutils.slowPrint("Reactor Successfully Started")
    textutils.slowPrint("Press and button to return")
    event, key = os.pullEvent(10) -- Timeout
    if event == "key" then
	    return()
    else
        -- WHATEVER YOU WANT HERE TO DO IF TIMEOUT SUCCEEDS
    end
end

That's the basic
Where it has return()
Make a function called return
Then have it go back to where it was.
If it was a loop to go back to beginning then just (simple way) put all your code in a function and make the return() that function (return() main())

Ok, now some code that will actually work:

local function someMenu()
  -- some menu code here
  if someCondition then
    print("Press any key to continue")
    os.pullEvent("key")
    return
  end
end