[xsl] get variable value in another template

[T Uma Shankari <umashankari@xxxxxxxxxxxxxxxxxxxx>]

Hello all,

  I have assigned a value to variable in one template. While accessing the 
same variable from another template, i couldn't retrieve that variable 
value. I tried it a different method but i couldn't get the value. here is 
my code

Actually i need  to replace {sub} tag to <sub> and {/sub} to </sub>

<xsl:template name="globalsubReplace">
  <xsl:param name="outputString"/>
  <xsl:param name="target"/>
  <xsl:param name="replacement"/>
   <xsl:variable name="outputString12">
  <xsl:choose>
    <xsl:when test="contains($outputString,$target)">
      <xsl:value-of select="concat(substring-before($outputString,$target),$replacement)"/>
      <xsl:call-template name="globalsubReplace">
        <xsl:with-param name="outputString" select="substring-after($outputString,$target)"/>
        <xsl:with-param name="target" select="$target"/>
        <xsl:with-param name="replacement" select="$replacement"/>
      </xsl:call-template>
    </xsl:when>
    <xsl:otherwise>
      <xsl:value-of select="$outputString"/>
    </xsl:otherwise>
  </xsl:choose>
 </xsl:variable>
<!--  <xsl:value-of select="$outputString12"/>-->
</xsl:template>



<xsl:template name="globalsubclose">
<xsl:param name="outputString12"/>
  <xsl:param name="target1"/>
  <xsl:param name="replacement1"/>
 <xsl:value-of select="$outputString12"/>
 <xsl:variable name="outputString22">
  <xsl:choose>
    <xsl:when test="contains($outputString12,$target1)">
      <xsl:value-of 
select="concat(substring-before($outputString12,$target1),$replacement1)"/>
      <xsl:call-template name="globalsubclose">
        <xsl:with-param name="outputString1" select="substring-after($outputString12,$target1)"/>
        <xsl:with-param name="target1" select="$target1"/>
        <xsl:with-param name="replacement1" select="$replacement1"/>
      </xsl:call-template>
    </xsl:when>
    <xsl:otherwise>
     <xsl:value-of select="$outputString12"/>
    </xsl:otherwise>
  </xsl:choose>
 </xsl:variable>
</xsl:template>


<xsl:template match="opt">
<xsl:call-template name="globalsubReplace">
  <xsl:with-param name="outputString" select="."/>
  <xsl:with-param name="target" select="'{sub}'"/>
  <xsl:with-param name="replacement" select="'&lt;sub&gt;'"/>
  </xsl:call-template>
 <xsl:call-template name="globalsubclose">
  <xsl:with-param name="outputString12" select="."/>
  <xsl:with-param name="target1" select="'{/sub}'"/>
  <xsl:with-param name="replacement1" select="'&lt;/sub&gt;'"/>
  </xsl:call-template>
</xsl:template>


can anyone please tell me the solution for this?

thanks in advance
uma