Help with code ..

[Dastard]

well i want to create a simple GUI . i have a three command buttons naming
( start , start from line , Quit ) and i have a text file( words.txt) of 5014 lines.
now i want that when i click start . program should pick up the very first line of the text file and prompts the content of whole first line as a window ( or message box ) .. keeps it there for almost 10 seconds and then refreashes that very window with the next line of text file and keeps on doing it till 5014th line or user clicks "Quit"

and incase at start up user clicks " start from line "
it prompt for a line number from user and at input . repeat the previous procedure starting from this line number ( which user have just given ) and keeps running just like before

well basically text file contains vocabulary . and this very program is sorta help to learn that vocabulary while user is using computer .
i hope i ll be making lil sense ..
regards and waiting for reply ..