creating an rtf/node-set from <script> function

ultimately, I'm trying to create a node-set (via node-set()) from a string 
returned from script.  below is a snippet of my code.  variable $dt works 
like a great <xsl:value-of select="msxsl:node-set($dt)/name"/>.  however, 
variable $st doesn't.  is there a way to convert a string, say returned from 
script, into an rtf or node-set?
.
.
.
<msxsl:script language="JavaScript" implements-prefix="myScript">
<![CDATA[
function pData()
pData = "<name id='3'>Rum and Coke</name>"
end function
]]>
</msxsl:script>
.
.
.
<xsl:variable name="dt">
<name id='7'>Harvey Wallbanger</name>
</xsl:variable>

<xsl:variable name="st">
<xsl:value-of select="myScript:pData()"/>
</xsl:variable>


Thanks

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