problem with image path

Hai all

The following is my code snippets for handling <img> tag.I have some problem
with image path.
I am created a servlet to converting a web page into pdf.For this i have
used a button on my page 
to invoke the servlet and gets the pdf of current web page. Here i am used
the image path as
<img src="http://localhost:8080/PDF/images/banner.gif"; />.Here the image
will be displayed on the web page 
and i can convert it into pdf using the following xsl.Now i have created a
pdf converter application(standalone application)and tried  with some html
page.Here what my problem is the images in the web pages are not get with
pdf document.Because in normal web page we can specify the path of image as

<img   src="images/banner.gif"/>


<!--********Code to handle img tag***********-->

<xsl:template match="img">
<fo:block>
        <fo:external-graphic>           
                <xsl:attribute name="src">
                        <xsl:text>url('</xsl:text>
                                <xsl:value-of select="@src"/>
                        <xsl:text>')</xsl:text>
                </xsl:attribute>
        </fo:external-graphic>
</fo:block>
</xsl:template>



How can i convert this path to actual path?How can i handle both url and
local path?

please help me 
george







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