xml - update the attribute name and element value -

i need update address address line 1 , value inside 1 jane place , save in variable. input dummy xml

used stylesheet

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/xsl/transform" xmlns:xs="http://www.w3.org/2001/xmlschema">     <xsl:template match="/">         <xsl:variable name="request">             <customers>                 <customer name="address">1 doe place</customer>                 <customer name="state">oh</customer>                 <customer name="name">john</customer>                 <customer name="name">kevin</customer>                 <customer name="name">leon</customer>                 <customer name="name">adam</customer>                 <customer name="city">columbus</customer>             </customers>         </xsl:variable>         <xsl:variable name="response">         -------         </xsl:variable>         <xsl:copy-of select="$response"/>     </xsl:template> </xsl:stylesheet> 

dont know update here. know how identity transform here i'm confused

perhaps work (i still puzzled regarding about):

xslt 1.0

<xsl:stylesheet version="1.0"  xmlns:xsl="http://www.w3.org/1999/xsl/transform" xmlns:exsl="http://exslt.org/common" extension-element-prefixes="exsl"> <xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes"/>  <xsl:variable name="request">     <customers>         <customer name="address">1 doe place</customer>         <customer name="state">oh</customer>         <customer name="name">john</customer>         <customer name="name">kevin</customer>         <customer name="name">leon</customer>         <customer name="name">adam</customer>         <customer name="city">columbus</customer>     </customers> </xsl:variable>  <xsl:variable name="response">     <customers>         <xsl:for-each select="exsl:node-set($request)/customers/customer">             <xsl:choose>                 <xsl:when test="@name='address'">                     <xsl:copy>                         <xsl:copy-of select="@*"/>                         <xsl:text>1 jane place</xsl:text>                     </xsl:copy>                 </xsl:when>                 <xsl:otherwise>                     <xsl:copy-of select="."/>                 </xsl:otherwise>             </xsl:choose>         </xsl:for-each>     </customers> </xsl:variable>  <xsl:template match="/">     <xsl:copy-of select="$response"/> </xsl:template>  </xsl:stylesheet> 

the result, when applied xml input:

<?xml version="1.0" encoding="utf-8"?> <customers>    <customer name="address">1 jane place</customer>    <customer name="state">oh</customer>    <customer name="name">john</customer>    <customer name="name">kevin</customer>    <customer name="name">leon</customer>    <customer name="name">adam</customer>    <customer name="city">columbus</customer> </customers>