actionscript 3 - ActionScript3. The screen auto change after a time -

i'm newbie in as3 , have stuck while coding pause , un-pause. @ frame 20

    stage.framerate=0;     stage.addeventlistener(keyboardevent.key_up, wait); function wait(event:keyboardevent) {         if(event.keycode == 40)         {             //resume pause return framerate = 20             stage.framerate = 20;             event.currenttarget.removeeventlistener(keyboardevent.key_up,wait);         } } 

i dont' know why after wait 10 second, screen contain code automatic change frame 21

framerate's value

adobe mentions 0 can't framerate's value:

valid range frame rate 0.01 1000 frames per second.

that means framerate's value of 0.01, flash movie play 100 seconds later.

gotoandstop()

the stage framerate's property not intended stop movie @ frame, , set frame rate of stage.

if want stop flash movie , wait frame 20:

gotoandstop(20); 

if want play:

play();