var tc = 0;

function Animate(tick, points)
// return interpolation
// points is arrray, eg 0,30, 3,50, 6,30, 9,50, 12,30
// tick, value, tick value etc
{
	
	for(var n = 2; n<points.length; n+=2)
	{
		if(tick <= points[n]) // found ?
		{
			var r =
				(points[n+1] - points[n-1]) / 
				(points[n] - points[n-2]) *
				(tick - points[n-2]) +
				points[n-1];
			return r;
		}
	}
	tc = 0; // reset tick, mark end
	return points[points.length-1]; // if finished - last value
}

function xInt(arg):Number
// guaranteed to return a number
{
	var r:Number = parseInt(String(arg));

	if (isNaN(r)) return 0;// return 0 if NaN

	return r;
}

function AttachMovie(mc, sym, Settings=undefined)
		{
				var classRef:Class = getDefinitionByName(sym) as Class;
				var Ret = new classRef();
				if(Settings)
				{
					if(Settings['x']) Ret.x = Settings['x'];
					if(Settings['y']) Ret.y = Settings['y'];
					if(Settings['scaleX']) Ret.scaleX = Settings['scaleX'];
					if(Settings['scaleY']) Ret.scaleY = Settings['scaleY'];
					if(Settings['width']) Ret.width = Settings['width'];
					if(Settings['height']) Ret.height = Settings['height'];
				}
				mc.addChild(Ret);			
				return Ret;
		}