How to pass two or more parameters using xsl attribute?

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XML

XSLT

I m transforming a XML into a XSL File, while there is a need to call a Javascript Function.
Javascript function is as follows:
function Toggle(ID)
{
-------
}
and I m calling this as follows:

<xsl:attribute name="onclick">
          <xsl:text>Toggle(</xsl:text>
          <xsl:value-of select="$i"/>

          <xsl:text>)</xsl:text>
        </xsl:attribute>
what if I have to pass two parameters instead??
viz. how can I call
function Toggle(ID1, ID2)
{
-----
}???
Currently i m doing this

<xsl:attribute name="onclick" xmlns:xsl="#unknown">
          <xsl:text>Toggle(</xsl:text>
          <xsl:value-of select="$i" />
         
          <xsl:text>,ID)</xsl:text>
        </xsl:attribute>
Is this right???