Positioning a clip

hey i have 2 movieclips on the stage the first one is the mainclip and the otherone is the menuclip the menuclip is on the of the mainclip and the menuclip is position on the top left of the movie clip what i want to do is whenever i resize either the width and height for the mainclip the menuclip remain on top left of the mainclip can anyone help me with this?