playing movie clips using a button

hi,

i have a button on the main stage called "three_btn"

i have a movieclip on the stage called "village_mc" and a movieclip inside this 'village' called "sign_mc".

what i want is the "sign_mc" movie to play when you press "three_btn".

this seems very simple but all the action script i have tried does'nt work!!!

please help!
---------------
while im here, can anyone help with this:

the "sign" movie clip reveals(mask) a signpost. i want the sign to be revealed when you press the three_btn, but also i want the sign to disappear IF you press three_btn and the sign post is visible.

obviously i would have to make a movie clip that removes the signpost (is there an easy way to 'reverse' a movie clip?) and create an if statement, but i dont know how to do this!!!

any response would be great

thanks..

code on main timeline, same frame as button

three_btn.onRelease = function(){
village_mc.sign_mc.play();
}

for an if(condition) use the _currentframe of the clip (ie.. sign revealed at frame#10)

three_btn.onRelease = function(){
if(village_mc.sign_mc._currentframe == 10){
village_mc.sign_mc.gotoAndPlay("close_me_label"); // frame label to close sign
} else {
village_mc.sign_mc.play();
}
};

hth :)

thanks for the help, really appreciate it, just one question..

i dont really get this bit ("close_me_label"); // frame label to close sign

does this mean i have to label the first frame of the sign animation?

pseudo set-up -

the "sign" movie clip reveals(mask) a signpost from frame#1 to #10

the "sign" movie clip closes(unmasks) a signpost from frame#11 to #20

so frame#11 has a frame label - close_me