Using with-param with apply-templates

airports.xslt

<!-- Start -->
<xsl:apply-templates select="airports/airport">
	<xsl:with-param name="position" select="'start'" />
</xsl:apply-templates>

<!-- End -->
<xsl:apply-templates select="airports/airport">
	<xsl:with-param name="position" select="'end'" />
</xsl:apply-templates>

<xsl:template match="airports/airport">
	<xsl:param name="position" />
    <option value="{@iata}" data-alternative-spellings="{.},{@iata}">
        <xsl:if test="(@iata = 'LGW' and $position = 'start') or (@iata = 'LAX' and $position = 'end')">
            <xsl:attribute name="selected">selected</xsl:attribute>
        </xsl:if>
        <xsl:value-of select="@iata"/> - <xsl:value-of select="." />
    </option>
</xsl:template>