Help setting up back navigation button by label name.

Question

Newbie back for some gems of wisdom.
I am trying to get forward and back buttons to advance the user along the timeline by label name. I got the forward button to work, but can't seem to find the right code tweakage to get the back button to work.
Here is what I have:
stop();
var myLabels:Array = [ "A","B","C","D","E","F","G","H" ];
var nextLabel:String;
var inc:int = 1;
var prevLabel:String;
var inc2:int = -1;
fwdbtn.addEventListener(MouseEvent.CLICK, clickNextSection);
function clickNextSection(e:MouseEvent):void
    nextLabel = String(myLabels[inc]);
    gotoAndPlay(nextLabel);
    inc++;
bkbtn.addEventListener(MouseEvent.CLICK, clickPreviousSection);
function clickPreviousSection(e:MouseEvent):void
    prevLabel = String(myLabels[inc2]);
    gotoAndPlay(prevLabel);
    inc2++;
I'm sure there are some reduncies and I know I'm missing the variable that tells the timeline to subtract positioning from the array.
Do I need to define a new array for the back button?
Any idea what I'm messing up??
Thanks!!

Answer 1

Thanks for the reply! Kind of lost unfortunately.
So can you tell me how to edit the code to reflect that? Not sure how what the deincriment syntax and is and not sure how to set it up the way you are suggesting - only adding deincriment/increment on the fly.
Any help you could lend to chopping the code would be appreciated.
Love the logic you suggest. That would ideal for it to work from any point.
Thanks for your help!