HTML5 Canvas scripting question - movieclip to movieclip interaction

Hi!

I have a movieclip with a button in it. I want the button to tell a movieclip named TriesRemainingMC on the maintimeline which is stopped on it's first frame to play.

I was thinking the code should be: 

function PumpkinDeath()
{
stage.TriesRemainingMC.play();

}

Thanks ahead for your reply,

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