[RESOLVED] Next and prev buttons not functioning.

[vastaso90]

I have a flash file with a MC "wmc" which contains the following script to randomize labels on load as well as for next and prev buttons to function. I used the prev/next btn scipt in a previous file but for some reason the buttons are no longer functioning in this one. I must be missing something elementary! I would greatly appreciate any help any of you could offer. The actual file is available via the following link (see the "workmc" MovieClip in layer "wimages"): http://senduit.com/3aa253

import flash.display.FrameLabel;

function goRandNext(event:MouseEvent = null):void {
	var labels:Array=currentLabels;
	for (var i:uint = 0; i < labels.length; i++) {
		var label:FrameLabel=labels[i];
		trace("frame " + label.frame + ": " + label.name);
	}
	var num:uint=Math.ceil(Math.random()*labels.length-1);
	label=labels[num];
	trace(num +" -- "+"frame " + label.frame + ": " + label.name);
	gotoAndPlay(label.frame);
}

addEventListener(MouseEvent.MOUSE_UP,goRandNext);

goRandNext();


r_btn.addEventListener(MouseEvent.CLICK, nextSection);
l_btn.addEventListener(MouseEvent.CLICK, prevSection);

function nextSection(event:MouseEvent):void {

var thisLabel:String = currentLabel;
var thisLabelNum:String = thisLabel.replace("sc", "");
var curNumber:Number = Number(thisLabelNum);
if (curNumber < 5) {

var nextNum:Number = curNumber + 1;
gotoAndStop("sc" + nextNum);

}

}

function prevSection(event:MouseEvent):void {

var thisLabel:String = currentLabel; 
var thisLabelNum:String = thisLabel.replace("sc", "");
var curNumber:Number = Number(thisLabelNum);
var prevNum:Number = curNumber - 1;
gotoAndStop("sc" + prevNum);

}

Thank you VERy much, in advance. (I'll have to put this forum on the payroll soon)