Thanks Joe, Thats what I was lookinf for. 
This solution brought me to the next problem:
I'm using xsl to transfer WS data (xml) into my xml, and then load it into 
DataTable. I know there is 5 <book> elements (in my destination xml). How can 
I make sure that even if I'll recieve only 2 (from the WS) my XSL will add 
another 3? 
Thanks again,
        sg..

"Joe Fawcett" wrote:

> "sg" <sg@d...> wrote in message 
> news:AA136C57-0D8F-45C3-BCEA-947094A2B31E@m......
> > hi,
> >
> > I have this xml:
> > <root>
> >    <book>
> >        <name>book1</name
> >    </book>
> >    <book>
> >        <name>book1</name
> >    </book>
> >    .
> >    .
> >    .
> > </root>
> >
> > and I'm tring to transfer it to this:
> > <root>
> >    <book1>
> >        <name>book1</name
> >    </book>
> >    <book2>
> >        <name>book1</name
> >    </book>
> >    .
> >    .
> >    <bookn>
> >        <name>book1</name
> >    </book>
> >
> > How can I do this using XSL?
> 
> I wholeheartedly recommend against this, it's very difficult to process this 
> type of markup, you can't easily sort or select all the book(n) elements.
> This would be the stylesheet:
> 
> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> <xsl:template match="/root">
> <xsl:copy>
> <xsl:apply-templates select="book"/>
> </xsl:copy>
> </xsl:template>
> <xsl:template match="book">
> <xsl:element name="{concat('book', position())}">
> <xsl:copy-of select="name"/>
> </xsl:element>
> </xsl:template>
> </xsl:stylesheet>
> 
> I'd prefer:
> 
> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> <xsl:template match="/root">
> <xsl:copy>
> <xsl:apply-templates select="book"/>
> </xsl:copy>
> </xsl:template>
> <xsl:template match="book">
> <book position="{position()}">
> <xsl:copy-of select="name"/>
> </book>
> </xsl:template>
> </xsl:stylesheet>
> 
> Which would give:
> 
> <root>
>   <book position="1">
>     <name>book1</name>
>   </book>
>   <book position="2">
>     <name>book1</name>
>   </book>
> ....
> </root>
> 
> -- 
> 
> Joe (MVP - XML)
> 
> 
>