Targeting Dynamic Text Box in an array

I’m trying to target a dynamic text box for a slideshow that is located in an attached movieclip.

This is the array:
var slideShow = [“slide1”, “slide2”, “slide3”, “slide4”];

Each slide is a movie clip that is loaded with attachMovie(). These movies each have a dynamic textbox named “slideDescription”. How would I be able to target that text box and get it to change the desciption each time I move to the next slide in the array?

Here is the code for the attachMovie() if you need it.
slides.attachMovie(slideShow*, “slide”, 1);