gotoAndStop won't go

programming flash
1

Hi, please see my coding here. I had applied this script to four of the mc(aboutus,advertiser,history,contactus) but just one of those run this script perfectly, this is funny. Other 3 of them failed to run in the last gotoAndStop(1), that means only 1 of them will go back to frame1, others will not go back. What happen??

onClipEvent (load) {
	_root.closebtn._visible = false;
}
onClipEvent (enterFrame) {
	this.btn1.onRelease = function() {
		_root.fco.dd += 2;
		_root.fco.aboutus.swapDepths(_root.fco.dd);
		gotoAndPlay(1);
	};
	if (this._currentframe == 24) {
		_root.closebtn._visible = true;
		_root.contents.loadMovie("kocha.swf");
	}
		_root.closebtn.onRelease = function() {
			_root.closebtn._visible = false;
			_root.contents.loadMovie("");
			_root.fco.aboutus.gotoAndStop(1);//this one will not go and stop on the others 3
		};
}