Add javascript using XSLT -

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i'm looking simple insert of javascript in xslt. e.g.

<xsl:variable name="comboname" select="@name" />         <script type="text/javascript">           var z{$comboname} = {$comboname};         </script>

however, when run transform gives:

<script type="text/javascript">               var z{$comboname} = {$comboname};             </script>

i've debugged , $comboname has correct value...but how javascript?

many thanks!

var z<xsl:value-of select="{$comboname}"/>=<xsl:value-of select="{$comboname}"/>;

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