Retrieve node values from combobox

programming flash
1

I have populated a comboBox dynamilcally from an xml file. When a user selects an item from the comboBox, I want to search the XML nodes and retrieve an attribute of that node.
At the moment I had this working correctly by storing the value in a _global variable and using the info in a function.


// Create Listener Object.
var cbListener:Object = new Object();

// Assign function to Listener Object.
cbListener.change = function(evt_obj:Object) {
	trace("Value changed to: "+event_obj.target.selectedItem.label);
};

cbList.change = function(eventObj) {
	_global.Uni = (eventObj.target.value);

This technique won’t suffice as we are changing languages around.
How would I use eventObj to target the desired node value?
A point in the right direction would be greatly appreciated.