[xsl] finding elements lowest in hierarchy?

["james walker" <jameswalkerandy@xxxxxxxxxxx>]

I have several template matches at several stages in a hierarchy of 
elements, i am trying to find an xpath staement to find out if any of a 
particuler elements lowest children have an attirbute called "minimum".
e.g. given this hierarchy
<1>
<2>
<3><4 minimum="true"></4><4></4><4 minimum="true"></4><4></4></3>
<3><4></4><4></4></3>
</2>
<2>
<3><4></4><4></4><4></4></3>
</2>
</1>

e.g. when it template matches for "2" i am trying to say if any "4" elements 
below the current element have a minimum attribute then execute some 
code.....
i would like to do the smae for other elemnts such as "3"-- if there are any 
"4" elements below the current element have a minimum attribute then execute 
some code

does anyone know how to find out whether any of the lowest children in a 
hierarchy have a particuler attribute??
cheers
james walker

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