I would do this as:

 <xsl:stylesheet version="1.0" 
 xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
 
   <xsl:output method="xml" indent="yes" />
 
   <xsl:template match="*">
     <xsl:copy>
       <xsl:apply-templates />
     </xsl:copy>
   </xsl:template>
 
   <xsl:template match="address/*">
     <xsl:element name="US_{local-name()}">
       <xsl:apply-templates/>
     </xsl:element>
   </xsl:template>
 
 </xsl:stylesheet>

 Michael Kay
http://www.saxonica.com/

> -----Original Message-----
> From: Mukul Gandhi [mailto:gandhi.mukul@xxxxxxxxx] 
> Sent: 14 September 2006 05:20
> To: xsl-list@xxxxxxxxxxxxxxxxxxxxxx
> Subject: Re:  Element name Change for a node
> 
> Please try this stylesheet:
> 
> <xsl:stylesheet version="1.0" 
> xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
> 
>   <xsl:output method="xml" indent="yes" />
> 
>   <xsl:template match="/address">
>     <address>
>       <xsl:apply-templates />
>     </address>
>   </xsl:template>
> 
>   <xsl:template match="*[../self::address]">
>     <xsl:element name="{concat('US_', local-name())}">
>       <xsl:value-of select="." />
>     </xsl:element>
>   </xsl:template>
> 
> </xsl:stylesheet>
> 
> This when applied to XML:
> 
> <address>
>   <streetAddress>123 First Street</streetAddress>
>   <city>Sometown</city>
>   <state>CA</state>
>   <zip>12345</zip>
>   <province/>
>   <country>USA</country>
> </address>
> 
> Produces output:
> 
> <?xml version="1.0" encoding="UTF-8"?>
> <address>
>    <US_streetAddress>123 First Street</US_streetAddress>
>    <US_city>Sometown</US_city>
>    <US_state>CA</US_state>
>    <US_zip>12345</US_zip>
>    <US_province/>
>    <US_country>USA</US_country>
> </address>
> 
> 
> On 9/14/06, Senthilkumaravelan Krishnanatham 
> <senthil@xxxxxxxxx> wrote:
> >
> > Hi All,
> >
> > I have the following structure in my XML and I want to 
> transform this 
> > all "address" node content to prefix with "US".
> > Please let me how to create the XSL template for the given input.
> >
> > Input
> >   <address>
> >    <streetAddress>123 First Street</streetAddress>
> >      <city>Sometown</city>
> >      <state>CA</state>
> >      <zip>12345</zip>
> >      <province />
> >      <country>USA</country>
> >   </address>
> >
> > output
> >   <address>
> >    <US_streetAddress>123 First Street</US_streetAddress>
> >      <US_city>Sometown</US_city>
> >      <US_state>CA<US_/state>
> >      <US_zip>12345</US_zip>
> >      <US_province />
> >      <US_country>USA</US_country>
> >   </address>
> >
> > I do not know how to create the XSL for it to transform.
> >
> > Thanks for your help.
> >
> >
> > Regards,
> > Senthil
> 
> 
> --
> Regards,
> Mukul Gandhi
> 
> http://gandhimukul.tripod.com