function doScale(symbolObj) {
		oldWidth = symbolObj._width;
	oldHeight = symbolObj._height;
	currentX = symbolObj._x;
	symbolObj._x = id * (thumbWidth + PADDING);
	trace(symbolObj._x + "set x");
	aspectRatio = thumbWidth / oldWidth  * 100;
	thumbHeight = oldHeight / 100 * aspectRatio
	symbolObj._width = thumbWidth;
	symbolObj._height = thumbHeight;
	symbolObj.onRollOver = function () {
		trace("expanding thumb");
		symbolObj._width = oldWidth;
		symbolObj._height = oldHeight;
	}
	symbolObj.onRollOut = function() {
		trace("shrinking thumb");
		symbolObj._width = thumbWidth;
		symbolObj._height = thumbHeight;
	}
}