xslt svg problem

Hi,

I'm trying to create png/imagemap from svg. My svg
Documents are first created from GraphXML-files using
Xalan. Next I convert them to png with the
batik-rasterizer. Then I try to extract the
xlink:hrefs from the svg to build an Imagemap. And
there the problem starts. Xalan doesn't recognizes the
<a> element when I use my document like this (The dtd
is in the same folder):

<?xml version="1.0" encoding="iso-8859-1"
standalone="no"?>
  <!DOCTYPE svg SYSTEM "svg-20000802.dtd">
<svg xmlns:xlink="http://www.w3.org/1999/xlink"
xml:space="preserve" width="5.4959999999999996in"
height="5.4959999999999996in">
   <circle style="fill:blue;stroke:red;" cx="0.5496in"
cy="0.5496in" r="0.5496in"/>
   <a xlink:href="http://www.cwi.nl/~ivan">
      <text style="fill:red" x="52.211999999999996"
y="114.42399999999999">Project leader</text>
   </a>
</svg>

But when I change <!DOCTYPE svg SYSTEM
"svg-20000802.dtd"> to <!DOCTYPE svg> everything works
fine. 

What am I doing wrong?

MAX

P.s.: that's my XSL:

<xsl:stylesheet
xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
version="1.0"
               
xmlns:xlink="http://www.w3.org/1999/xlink">
<xsl:output encoding="UTF-16" method="html"/>
<xsl:template match="/">
	<xsl:element name="HTML">
		<xsl:element name="HEAD">
			<xsl:element
name="TITLE">imagemapbeispiel</xsl:element>
		</xsl:element>
		<xsl:element name="BODY">
			<xsl:element name="IMG">
				<xsl:attribute name="src">out.png</xsl:attribute>	
	
				<xsl:attribute  name = "usemap"
>#explmap</xsl:attribute>			
			</xsl:element>
			<xsl:element  name = "MAP">
				<xsl:attribute  name = "name"
>explmap</xsl:attribute>
				<xsl:apply-templates/>
			</xsl:element>
		</xsl:element>	
	</xsl:element> 
</xsl:template>
<xsl:template match="a">
					<xsl:element  name = "AREA">
						<xsl:attribute  name = "href" >
							<xsl:value-of select="@xlink:href" />
						</xsl:attribute>
						<xsl:attribute  name = "shape"
>rect</xsl:attribute>
						<xsl:variable name = "reftext"><xsl:value-of
select="text"/></xsl:variable>
						<xsl:variable name = "length"><xsl:value-of
select = "string-length($reftext)*5"/></xsl:variable>
						<xsl:variable name = "xwert">
							<xsl:value-of select = "text/@x" />
						</xsl:variable>
						<xsl:variable name = "ywert">
							<xsl:value-of select = "text/@y" />		
						</xsl:variable>	
						<xsl:variable name = "xwert2">
							<xsl:value-of select = "$xwert+$length" />
						</xsl:variable>		
						<xsl:variable name = "ywert2">
							<xsl:value-of select = "$ywert+-19" />		
						</xsl:variable>			
						<xsl:attribute  name = "coords" >
							<xsl:value-of select = "$xwert" />
							<xsl:text>,</xsl:text>
							<xsl:value-of select = "$ywert2" />
							<xsl:text>,</xsl:text>
							<xsl:value-of select = "$xwert2" />
							<xsl:text>,</xsl:text>
							<xsl:value-of select = "$ywert" />
						</xsl:attribute>
					</xsl:element>
				</xsl:template>
</xsl:stylesheet>



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