How to dynamically derive a variable's value

[Mollose]

In my FLA I have a MC called imageController. Into the imageController MC I load some variables from a .txt file - one such variable is numEventsImages=3. There's another variable called sectionName = Events;

I have a function called count in the first frame of the main timeline, and it uses both variables.

QUESTION: When I invoke the count function within the imageController MC, how can I *dynamically* get the value of numEventsImages.

I know that I can get it by referring directly to the loaded variable: trace("numEventsImages: " + imageController.numEventsImages);

But I want to do it dynamically, but when I try:
trace("numEventsImages (derived): " + "num" + imageController.sectionName + "Images");
all I get is the *string* numEventsImages.

and when I try:
trace("numEventsImages (derived): " + this["num" + imageController.sectionName + "Images"]);
I get nothing from the trace. I've also tried it with eval.

Thanks for your help.

[aldorr]

try

derVar="num" + imageController.sectionName + "Images";
trace("numEventsImages (derived): " + eval(derVar) );

aldorr.