Waarom werkt het volgende niet:
document.getElementById(overlay_inhoud).innerHTML = <a href="#" onclick="document.getElementById(overlay).style.display =
one; return false;"><img src="[COLOR= #0000BB]<?php[/COLOR] [URL="http://www.php.net/echo"]echo[/URL] URL[COLOR= #007700];[/COLOR] ?>images/sluiten.gif" height="16" width="16" alt="" style="float: right; border: 0; margin: -13px -12px -8px 0; border: 4px solid #999;" /></a><table><table><tr><td><p>Kies je taal</p></td><td><p>Choose your language</p></td></tr><tr><td><img src="[COLOR= #0000BB]<?php[/COLOR] [URL="http://www.php.net/echo"]echo[/URL] URL ?>images/nl.gif" lang="nl" onclick="document.location = [COLOR= #0000BB]<?php[/COLOR] [URL="http://www.php.net/echo"]echo[/URL] URL ?>lang?lang=NL" /></td><td><img src="[COLOR= #0000BB]<?php[/COLOR] [URL="http://www.php.net/echo"]echo[/URL] URL ?>images/en.gif" lang="en" onclick="document.location = [COLOR= #0000BB]<?php[/COLOR] [URL="http://www.php.net/echo"]echo[/URL] URL ?>lang?lang=EN" /></td></tr></table>;