ActionScript 3.0 :: Dynamically Display Custom Slider Value?

I had to create a non-component slider for a project. I am new to actionscript (and entirely self-taught so bear with my probably poor programming style) and have no idea how to display the value as the thumb moves. Is there a way to use the sliderevents outside of the slider components, or is there a way to update a text box as the slider moves outside of the sliderevents. Here is the code for one of the sliders:

function getPercentageA() {
return Math.ceil(((slidera.thumb.x-slidera.Track.x)/slidera.Track.width)*100);
}

[code].....