Pass actionscript code through variable (dynamic buttons)

i have some dynamic MC buttons which are working great but i want to basically inject what the onrelease code is for each button usng on onLoad command. Right now onLoad sends the button label and i would like to send the actionscript code as well.

On the MC that holds the button the onLoad passes

this.label = "button label";

correctly.

command = 'trace("osaka!");'

passes that info to

on(release) {
	command
	}

inside, but it treats it as text and not code. So how can i pass actionscript commands so they fill in the variables inside the button?

Thanks.