FW: Linear counting problem in nested loop

Hi,

I have the following XML and want to implement such that I can have 
a linear counter increment with each iteration of the parent for-each 
loop and also the nested for-each loop. 

<?xml version="1.0"?>
<MENU>
    <MenuItems>
        <MenuLabel>Menu 1</MenuLabel>
        <SubMenuItems>
            <SubMenuLabel>Sub Menu 1</SubMenuLabel>
        </SubMenuItems>
        <SubMenuItems>
            <SubMenuLabel>Sub Menu 11</SubMenuLabel>
        </SubMenuItems>
    </MenuItems>
    <MenuItems>
        <MenuLabel>Menu 2</MenuLabel>
        <SubMenuItems>
            <SubMenuLabel>Sub Menu 2</SubMenuLabel>
        </SubMenuItems>
    </MenuItems>
</MENU>

e.g. The counter should return as:  
            1 for Menu 1
            2 for SubMenu 1
            3 for SubMenu 11
            4 for Menu 2
            5 for SubMenu 2

So far, what I got is the counter breaks when it reaches the second 
<MenuItems>, as it doesn't know about the subMenu from the first 
MenuItems counts 3 already...
Thanks a lot!
Dongzhi

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