how to make play/pause toggle button.

[Middlesbrough]

still one error message ive now got it to this piont
on (release) {
stop();
var interval:Number = setInterval(function () {
trace(interval);
play();
clearInterval(interval);
"setTimeout(functionName,1000);//" ;
}})

and the error message that comes up is

**Error** Scene=Scene 1, layer=pause, frame=20:Line 8: ')' or ',' expected
}})

Total ActionScript Errors: 1 Reported Errors: 1

can anybody give me a hand with that and thanks i dont mean to be a pain.