XML->HTML using XSLT

Thanks - especially Ken - for all the help. My aim was to make the use of my XML browser independent, so I tried to work with the XSLT extension but without much succes. I used this code from the manual and changed the filenames, but I get validation errors or nothing at all. I know the XML is working without PHP so I don't get it. Anyone? <? // Allocate a new XSLT processor $xh = xslt_create(); // Process the document xslt_process($xh, "webdev.xml", "menus.xsl", "result.xml") print "<pre>\n"; readfile("result.xml"); print "</pre>\n"; xslt_free($xh); ?>