Header some image

Hi @ all,

I try to insert an image to my header pdf output.

Therefore I defined a customization layer looks like:

...
  <xsl:when test="$sequence = 'odd' and $position = 'right'">
       <fo:block>
         <fo:external-grafic src="url(/C:/logo.png)"/>
        </fo:block>
        <!--fo:block>hello</fo:block-->
      </xsl:when>
...

If I insert the text hello, it is in the right corner in the pdf written.
But if I try to insert the image it do nothing! I also change the image to jpg, bmp, png.
Has anyone an idea how it works?

Should I customize some parameters? Like the before area?

Thank you a lot of:-)
Martin