looping through XML

I have an xml file that I need to loop though to find a specific node based on a String value. When it finds this node it also needs to know the index or depth of this node in the xml tree.

here is my xml.

Code:

---


<?xml version="1.0" encoding="UTF-8"?>
<menu>
        <data>
        <children>
                <row id="0">
                        <title icon=""><![CDATA[Main Navigation 1]]></title>
                        <url></url>
                        <children>
                                <row id="0">
                                        <title icon=""><![CDATA[Sub1 Menu1]]></title>
                                        <url>/book</url>
                                </row>
                                <row id="1">
                                        <title icon=""><![CDATA[Sub1 Menu 2]]></title>
                                        <url>/grid</url>
                                </row>
                        </children>
                </row>
                <row id="1">
                        <title><![CDATA[Main Navigation 2]]></title>
                        <url>/book</url>
                        <children>
                                <row id="0">
                                        <title><![CDATA[Sub2 Menu1]]></title>
                                        <url>/guide1?page=0</url>
                                </row>
                                <row id="1" >
                                        <title><![CDATA[Sub2 Menu2]]></title>
                                        <url>/guide2?page=0</url>
                                </row>
                        </children>
                </row>
        </children>
        </data>
</menu>

---

For example if I have the value of "/grid" I need to loop through my xml to find which node matches that value and keep a counter for which top level object it came form.

So right now I have 2 top level nodes called row 0 and row 1 If the search finds the value in row 0 then it needs to keep track of that value and so on.

Anyone know how I would achieve this.
I tried this which does find the node but it doesn't know which top level node its come from.

Actionscript Code:

var node:XML = data..row.( elements( "url" ) == fullPath )[0];

Then I tried a for loop but got stuck on how to deal with the search.

Actionscript Code:

var nod:XMLList = data.children.row;
            var depth:int = 0;
            for each (var item:XML in nod){
                var current:XML = item;
                /*if(current == node){
                    depth ++;
                    return;
                }  
                */
                
                //nod = nod.children();
                trace(current);
            }