So I have an Error 1009: Cannot access a property, blah, blah, blah too.

I'm assuming the experts here will be able to identify the problem immediately.  I'm sure where the problem is, I just don't know how to address it.  Here's what I'm looking at:

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bttn2.addEventListener(MouseEvent.CLICK, checkZips);
function checkZips(e:Event):void {
   
    var azipcode:* = new RegExp("(0-9){5}", "g");

    var thebigstring:String = xmlEPG.toXMLString();

//so here is the array of all the zip codes
    var allzipcodes:* = thebigstring.match(azipcode);

for (var i:* = 0;i<allzipcodes.length;i++)
{
if (inputField.text == allzipcodes)
    {responseText.text="Please enter a valid 5-digit zip code.";break;} 
        else 
    {responseText.text = "Yes! You may drop off this package at the later drop-off time.";
        break;}
}

}

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I'm 99.9% positive that the error is coming from line 8, which is:

    var allzipcodes:* = thebigstring.match(azipcode);

This is the second tab of my app, 3rd frame.  The xml is loaded in frame 1 and that tab works perfectly.  Any clues?

Thanks in advance!!

Brad