 		private var yInterval:Number;
 		override public function drawBackground(dataBounds:IBounds2D, screenBounds:IBounds2D, destination:BitmapData):void
 		{
-			
+			var i:int;
 			valueMax = radiusColumnStats.getMax();
 			valueMin = radiusColumnStats.getMin();
 			

			if (typeRadio.value == simpleRadio)
			{
				circleRadiuses = new Array();
				for (var i:int = 0; i < numberOfCircles.value; i++)
					circleRadiuses.push(StandardLib.roundSignificant(valueMin + i * (valueMax - valueMin) / (numberOfCircles.value - 1), 4));
				
				yInterval = screenBounds.getYCoverage() / numberOfCircles.value;

			g.clear();
			lineStyle.beginLineStyle(null, g);
			
			for (i = 0; i < normalizedCircleRadiuses.length; i++)
			{
				tempPoint.y = yPosition;				
				
