comment_author_url

woops i guess i didn’t escape my characters
here it is again, kind of!

“><?php comment_author(); ?>

So i tried this piece of javascript

<script language="JavaScript" type="text/Javascript">
	if (<?php comment_author_url(); ?> != null) {
 	  document.write('<span class="commentauthor">  <a href="<?php comment_author_url(); ?>"><?php comment_author(); ?></a></span>');
	} else {
          document.write('<span class="commentauthor">  <?php comment_author(); ?></span>');
	}
</script>

but i have now read that document.write is not supported un xhtml.

Any ideas what i could do??
cheers

i am not concerned with validation right now. The script above doesnt work.

All i am trying to do is hyperlink a commenters name if they leave a web site URL when making a comment. If they dont leave a url i just want to dosplay the name with no hyperlink.

The reason i am doing this is that i noticed that if you hyperlink all names with the url, then if the filed was left blank then the the default url is the name of the post. i dont want that!!

so i tried this php code, but it is giving me strange results:-

<?php
            $urlentered = comment_author_url();
           if (!empty($urlentered))
                echo '<span class="commentauthor"><a href="',comment_author_url(),'" target="_blank">',  comment_author(), ' </a></span>';
           else
                echo '<span class="commentauthor">',  comment_author(), ' </span>';
          ?>

The strange result is that the url – when present- gets printed before the span tag.

I’ve been struggling with this for days now!!!
cheers