[iNils]

var flag:Boolean = false;
var choice:Number;
 
for (var i:Number = 1; i<5; i++) {
	_root['g'+i].text = _root['b'+i].text;
	_root['btn'+i].i = i;
	_root['btn'+i].onRelease = onBtnRelease;
}
 
function onBtnRelease() {
	if (flag) {
		var str:String = _root['b'+choice].text;
		_root['b'+choice].text = _root['b'+this.i].text;
		_root['b'+this.i].text = str;
	} else {
		choice = this.i;
		trace(this);
	}
	flag = !flag;
}