Same mc tells different mcs to play once completed

hey guys,

im trying to figure this out in an easier manner.

currently, when a button is clicked it tells another mc to play a sequence as laid out in the timeline. eg: frm1 = play “intro_mc” | frm20 = play another mc with content for same name as button.

this works but is a pain in the a~@ to edit.

is there a way to tell flash that - regardless of what button is clicked - it plays “intro_mc” (its a SINGLE mc used just before all content is displayed, ((intro uses masks, animations, etc))…and THEN once it reaches the end, it plays the respective content that relates to the clicked button.

ANY help is most welcome. thanks!
Julio