ActionScript 3.0 :: For Loop Running Infinite Times When Triggered

I've got this for loop, but for some weird reason it malfunctions:
- When triggered, it runs infinite times.
- It only triggers when segmenten1 or segmenten3 are 0, which is weird, because it should also work when segmenten0 and 2 and 4 are 0...

Here is the for loop:
stage.addEventListener(Event.ENTER_FRAME,addmetaal);
function addmetaal (evt:Event) {
for(var animteller=0;animteller<5;animteller++){
if (this["segmenten"+animteller]==0) {
[Code] .....

It seems to me like that when any of the segmented variables hits 0, it should trigger 2nd for loop, and repeat that 4 times. The xco and yco are arrays which store values for the x and y coordinates for spwaning the addchilds, this works fine.
the segmented variables are declared as following:
var segmenten1:Number=17, segmenten2:Number=17, segmenten3:Number=17, segmenten4:Number=17, segmenten0:Number=17;