<xsl:value-of ...> as value of HTML attribute

hi all,
	I'm pretty sure that this question has already been answered but I
haven't been able to find the answer in the FAQ or in the archives.  Below
is the snippet of code which I'm having a problem with.  I know it has to do
with having double quotes inside of double quotes but I'm not sure how to
fix the problem.  

This is what I want to do:
<xsl:template match="Code">
	<option value="<xsl:value-of select="Effect"/>"><xsl:value-of
select="Display"/></option>
</xsl:template>


I have tried putting single instead of double quotes like: <option
value='<xsl:value-of select="Effect"/>'> .
but this doesn't seem to work either.

Any suggestions would be greatly appreciated.  

	Thanks as always,
	Heather


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