title: Nesting of xsl:when conditions
body: <p>I have a query related to xsl choose , inside xsl choose is being used
  Now i have two xsl:when condition is there like as hsown below </p>
  
  <pre><code>&lt;xsl:choose&gt;
    &lt;xsl:when test=$labcVar=$cde&gt;
      &lt;xsl:when test="$erf=$der"&gt;
        &lt;xsl:value-of select="'edr'" /&gt;
      &lt;/xsl:when&gt;
      &lt;xsl:otherwise&gt;
        &lt;xsl:value-of select="'fre'" /&gt;
      &lt;/xsl:otherwise&gt;
  </code></pre>
  
  <p>please advise is it the correct approach since insise xsl:when ..I have to begain only when first when condition becomes true the only I should go for second xsl:when condition, please advsie it is aloowed or not </p>