sorry Michael, David
I was little bustling!
  hope this below is more clear now.
The varable value should be updated

<xsl:variable name="foo"/>

  <xsl:for-each select=bpartiotion/files/file[@name=bxxb or name=bxyb or name=basdb or  b&b&b&.. b>
        <xsl:variable name="foo">
                      <xsl:for-each select="data">
                          <xsl:choose>
                              <xsl:when test="contains(elements/elementA '1234) or contains(elements/package/id '55) or contains(elements/category/id, '67)" or contains(b&b&b&b&.">

                                  <xsl:value-of select="1"/>
                              </xsl:when>
                              <xsl:otherwise>
                                  <xsl:value-of select="0"/>
                              </xsl:otherwise>
                          </xsl:choose>
                      </xsl:for-each>
                 </xsl:variable>

                          <xsl:choose>
                              <xsl:when test="$foo = 1">

                                 //doSomething
                              </xsl:when>
                              <xsl:otherwise>
                                  //doNothing
                              </xsl:otherwise>
                          </xsl:choose>
      </xsl:for-each

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