[xsl] few question regarding the use of id generation

["=?big5?B?qkwgpGyq5A==?=" <minikittygo at hotmail dot com>]

hi there:
i was wondering anyone could help me out on this question....

suppose i have such structures:- 

<experiment>
<method>
<a>value1</a>
<b>value2</b>
<c>
   <d>vlaue</d>
   <e>value3</e>
</c>
<results>
<a>value1</a>
<b>value2</b>
<c>
   <d>vlaue</d>
   <e>value3</e>
</c>
</method>
...

Suppose i wish to generate an id for <c> in the results elemeny, i will 
have to use gerate-id(c), however i was wondering whether an same id will 
be generate in method/c (given that the value are the same). if not, is 
there a way to generate the same id for both of them? 

secondly, i know i might sound pretty stupid but is there a function in xsl 
that could do similar operation as the following sql command?
select * from results where c="2";

Many thanks

Kit



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