[mooncar]

Тогда так попробуйте, без класса Tween:

but.onPress = function()
{
	smoke.gotoAndPlay(1);
	smoke._alpha = 100;
	smoke._x = 251;
	smoke._y = 180
};
 
but.onRelease = but.onReleaseOutside = function()
{
	this.useHandCursor = false ;		
	this.enabled = false ;
	smoke.onEnterFrame = smokeHide;
};
 
function smokeHide() 
{
	if (this._alpha > 0) 
	{
		this._alpha -= 5;
	}
	else 
	{
		delete this.onEnterFrame ;
		but.enabled = true ;
		but.useHandCursor = true ;		
	}
}