[xsl] Sort By Multiple Values?

Hi,

I have a document here where I am attempting to sort it using multiple valu= 
es. Here is the XML:

  <computer>
            <language>
                <ability rank=3D"1">XML 1.0</ability>
                <type>XML</type>
            </language>
            <language>
                <ability rank=3D"1">XSLT 1.0</ability>
                <type>XML</type>
            </language>
            <language>
                <ability rank=3D"2">XSLT 2.0</ability>
                <type>XML</type>
            </language>
            <language>
                <ability rank=3D"1">HTML 4.01 / XHTML 1.0</ability>
                <type>HTML</type>
            </language>
            <language>
                <ability rank=3D"1">CSS</ability>
                <type>HTML</type>
            </language>
</computer>

The XSL:

   <xsl:template match=3D"computer">
   [<span class="skills">
                        <xsl:apply-templates select="language">
                            <xsl:sort select="@rank" order="ascending"/>
                        </xsl:apply-templates>
                    </span>]
</xsl:template>

The output now is in the same order as it is in the order of the document w= 
hen the @rank value is 1, and followed by the one where @rank=3D2.

[XML 1.0] [XSLT 1.0] [HTML 4.01/XHTML 1.0] [CSS] [XSLT 2.0].

Is it possible that I can get it to display as

[CSS] [HTML 4.01/XHTML 1.0] [XML 1.0] [XSLT 1.0] [XSLT 2.0]

?

Thanks to those who can help.

---------------------------------------
Alice Wei
MIS 2008
School of Library and Information Science Indiana University Bloomington 
ajwei(_at_)indiana(_dot_)edu
812-856-2659

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