simple xml actionscript

[mfsiddiq]

HI

I have a form that i m creating dynamically using xml .But i need to add labels on each formitem after all formitems are created.So i store each formItem in an array.After the form is created i tried adding labels to the form using the following code:

var i:int=0;
for each(var n:XML in externalXML..someObject.item) {


if(n.hasOwnProperty('label'))
{
formLabels[i++].label=n.label

}

}

though it creates the formitems with corresponding labels it gives errors on the way like this
TypeError: Error #1010: A term is undefined and has no properties.
Can anyone explain why i am getting this error