Issuin in tracking the xpath in xslt

[derakesh]

HI All,
I am facing problem while using xslt.
the scenario is:
I have a input file which is as following
<sample>
<Term id="12" Rid="23">
<data1>xy</data1>
<data2>xy</data2>
<data3>xy</data3>
</Term>
<Sterm>
<Lterm>
<Term idref="13"/>
<Term idref="12"/>
<Term idref="14"/>
<Term id="15" Rid="27">
<data1>xy</data1>
<data2>xy</data2>
<data3>xy</data3>
</Term>
</Sterm>
<Nterm>
<Term id="13" Rid="23">
<data1>xy</data1>
<data2>xy</data2>
<data3>xy</data3>
</Term>
<Nterm>
</Lterm>
<a>
<b>
<c>
<Term id="14" Rid="23">
<data1>xy</data1>
<data2>xy</data2>
<data3>xy</data3>
</Term>
<Term idref="15/>
</a>
</b>
</c>
</sample>

Here we can find that the node "Term" can appear in any level.
The above sample says that
1.)the node "Term " can have either id or idref,
2.)If id exists the the corresponding data will exists under the node 3.)and if idref exists, it means that the valuse if idref would be equal to one of the "Term" node in the input xml( with specifying the path)

Please help me in the case where i get idref and using that i want to fin the whole "Term" node which has value of id equals to idref.

Kindly help.

Thanks
Rakesh