value of parent tag

excuse me if i ask stupid question, but i've been
looking for the answer since yesterday and i found
nothing. it's silly newbie's problem:

<aaa key="abc">
   <cc/>
   <cc/>
</aaa>
<aaa key="cde">
   <cc/>
   <cc/>
</aaa>

and i need to know 'key' value of a parent tag in each
particular <cc/>. on the example in 1st and 2nd <cc/> it's 
"abc", in 3rd and 4th - "cde".

i found only sth like //aaa[current()]/@key, which shows me
always "abc" value, regardelss in which <cc/> i'm checking it.
besides i want to check it independently to parent's name
treating it only as a parent.

-- 
Daniel `bonkey' Bauke; http://www.oho.pl/~bonkey/; {happiness=bike&&unix;}

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