Flash8 :: Dynamically Create XML File References?

I need to create two combo boxes that are populated by an XML file. In the first combo box there are 13 choices and depending on what the user selects I need to populate the second combo box with the correct information. Now I can create the first combo box just fine but when I try to dynamically create the XML file name for the second combo box it doesn�t seem to work. What I am doing so far is taking the data from the first combo box and adding the quotes and .xml with this piece of code:

PHP Code:

pModCombo = '"'+event_obj.target.selectedItem.data+"Combo"+".xml"+'"';
pModComboXML = new XML();
pModComboXML.ignoreWhite = true;
pModComboXML.load(pModCombo);

If you trace that code it creates the file name just fine however the xml file will not load. If I replace that code with the normal xml code like this:

PHP Code:

pModComboXML = new XML();
pModComboXML.ignoreWhite = true;
pModComboXML.load("new.xml");

The second xml file seems to load just fine. However, if I create an if statement with all the different xml file names I will have to update the swf every time I add a new choice in the first combo box. So my question is does anyone know how to dynamically create the xml file name?

PHP Code:

pmComboXML = new XML();
pmComboXML.ignoreWhite = true;
pmComboXML.load("brands combo.xml");

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