[xsl] To eliminate duplicate entries

["X.P.Pratibha :-)" <xp_pratibha@xxxxxxxxxx>]

Hi all.,
   I am novoice to XSL .

My XML has multiple Duplicate entries and while displaying it through
XSL I have to eliminate the multiple duplicate entries and display only
one entry .

Is there is any way to check the uniqueness of the data to be displayed
in XSL.

In my xml data say if "employee id" is unqui ,Is there anyway to check
the replication of employee id in xsl.

Any links or sample code will be of great help.


Thanks,
Pratibha