xsl:apply-templates and modes ("default" mode?)

I have a template I made some time ago which *always* outputs 4 lines. 
However, on a separate page (in a separate template), I want to output 
only those lines that have data. "mode=" appears to be ideal for this, 
but I'd rather not *require* a mode (without a mode, it "defaults" to 
one version; if a mode is specified, it uses that mode). I'd like to 
have it use the current "always output 4 lines" version unless mode is 
specified.
Is this possible?  If I have one xsl:template with a mode, do I have to 
always specify the two types of modes?
I'm hoping to be able to keep the current standard/default method, so I 
don't have to go and change all of the documents which are currently 
using that system.
Here's my XML:

<ICD9S>
  <ICD9LINE>
    <ICD9>847.1</ICD9>
    <ICD9DESC>IMPORTANT INFORMATION ABOUT 847.1</ICD9DESC>
  </ICD9LINE>
  <ICD9LINE>
    <ICD9>847.2</ICD9>
    <ICD9DESC>IMPORTANT INFORMATION ABOUT 847.2</ICD9DESC>
  </ICD9LINE>
  <ICD9LINE>
    <ICD9>847.3</ICD9>
    <ICD9DESC>IMPORTANT INFORMATION ABOUT 847.3</ICD9DESC>
  </ICD9LINE>
  <ICD9LINE>
    <ICD9/>
    <ICD9DESC/>
  </ICD9LINE>
</ICD9S>

And my XSL-FO:

<xsl:template match="ICD9S">
  <fo:block>
    <fo:table border="0pt" table-layout="fixed">
      <fo:table-column column-width="1.9cm"/>
      <fo:table-column column-width="18.1cm"/>
      <fo:table-body>
        <fo:table-row>
          <fo:table-cell text-align="right">
            <fo:block font-weight="bold" 
keep-with-next.within-page="always">
            ICD9:
          </fo:block>
          </fo:table-cell>
          <fo:table-cell>
            <fo:table border="0pt" table-layout="fixed" margin-top="4pt">
              <fo:table-column column-width="1.3cm"/>
              <fo:table-column column-width="16.8cm"/>
              <fo:table-body>
                <xsl:for-each select="ICD9LINE">
                  <fo:table-row>
                    <xsl:attribute 
name="background-color"><xsl:choose><xsl:when test="(position() mod 2) = 
0"><xsl:value-of 
select="$varAccentBGColor"/></xsl:when><xsl:otherwise><xsl:value-of 
select="$varNormalBGColor"/></xsl:otherwise></xsl:choose></xsl:attribute>
                    <fo:table-cell>
                      <fo:block keep-with-next.within-page="always">
                        <xsl:value-of select="ICD9"/>
                      </fo:block>
                    </fo:table-cell>
                    <fo:table-cell>
                      <fo:block padding-left="6pt" 
keep-with-next.within-page="always">
                        <fo:inline font-size="4pt">&#160;</fo:inline>
                        <xsl:value-of select="ICD9DESC"/>
                      </fo:block>
                    </fo:table-cell>
                  </fo:table-row>
                </xsl:for-each>
              </fo:table-body>
            </fo:table>
          </fo:table-cell>
        </fo:table-row>
      </fo:table-body>
    </fo:table>
  </fo:block>
</xsl:template>

I'd like to add this underneath, if possible:

<xsl:template match="ICD9S" mode="drg">
  <fo:block>
    <fo:table border="0pt" table-layout="fixed">
      <fo:table-column column-width="1.9cm"/>
      <fo:table-column column-width="18.1cm"/>
      <fo:table-body>
        <fo:table-row>
          <fo:table-cell text-align="right">
            <fo:block font-weight="bold" 
keep-with-next.within-page="always">
            ICD9:
          </fo:block>
          </fo:table-cell>
          <fo:table-cell>
            <fo:table border="0pt" table-layout="fixed" margin-top="4pt">
              <fo:table-column column-width="1.3cm"/>
              <fo:table-column column-width="16.8cm"/>
              <fo:table-body>
                <xsl:for-each select="ICD9LINE">
                  <xsl:choose>
                    <xsl:when test=".!=''">
                      <fo:table-row>
                        <xsl:attribute 
name="background-color"><xsl:choose><xsl:when test="(position() mod 2) = 
0"><xsl:value-of select="$varAccentBGColor"/>  </xsl:when> 
<xsl:otherwise><xsl:value-of 
select="$varNormalBGColor"/></xsl:otherwise></xsl:choose></xsl:attribute>
                        <fo:table-cell>
                          <fo:block keep-with-next.within-page="always">
                            <xsl:value-of select="ICD9"/>
                          </fo:block>
                        </fo:table-cell>
                        <fo:table-cell>
                          <fo:block padding-left="6pt" 
keep-with-next.within-page="always">
                            <fo:inline font-size="4pt">&#160;</fo:inline>
                            <xsl:value-of select="ICD9DESC"/>
                          </fo:block>
                        </fo:table-cell>
                      </fo:table-row>
                    </xsl:when>
                    <xsl:otherwise>
                      <fo:table-row>
                        <fo:table-cell number-columns-spanned="2">
                          <fo:block keep-with-next.within-page="always">
                            &#160;
                          </fo:block>
                        </fo:table-cell>
                      </fo:table-row>
                    </xsl:otherwise>
                  </xsl:choose>
                </xsl:for-each>
              </fo:table-body>
            </fo:table>
          </fo:table-cell>
        </fo:table-row>
      </fo:table-body>
    </fo:table>
  </fo:block>
</xsl:template>

Does anyone have a better idea?
--
Clay Leeds - cleeds(_at_)medata(_dot_)com
Web Developer - Medata, Inc. - http://www.medata.com
PGP Public Key: https://mail.medata.com/pgp/cleeds.asc


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