Flash CS3 Professional.
element.transformY
Property; a floating-point number that specifies the y value of the selected element’s transformation point, within the coordinate system of the element’s parent. Setting this property to a new value moves the element. By contrast, the element.setTransformationPoint() method moves the transformation point but does not move the element.
element.getTransformationPoint(), element.setTransformationPoint(), element.transformX