Implementing incremental logic in XSLT

I faced difficult time to implement the incremental logic for xslt 1.0 today..My requirement was to printout consequent numbers upto a certain value.
Here is my sample segment xslt code for this..

  <xsl:element name="Numbers">

                              <xsl:for-each select="//flight_info">

                              <xsl:if test="position()= last()">

                                  <xsl:call-template name="incrementValue">

                                      <xsl:with-param name="i"  select="1"/>                                                                    

                                     <xsl:with-param name="pos" select="position()"/>

                                </xsl:call-template>

                                </xsl:if>                                     

                             </xsl:for-each>

     </xsl:element>

//This template does the trick, which contains the recursive call to the same template..

    <xsl:template name="incrementValue">

        <xsl:param name="i" />

        <xsl:param name="pos" />

        <xsl:if test="$i <= $pos">

            <xsl:value-of select="concat($i,' ')" />

            <xsl:call-template name="incrementValue">

                <xsl:with-param name="i" select="$i + 1" />

                <xsl:with-param name="pos" select="$pos" />

            </xsl:call-template>

        </xsl:if>

    </xsl:template>