1 <p><a href=
"javascript:document.title = 'This is a test'; document.title += ', this document URL is '+document.url;void(0);">Change the document.title while preventing going anywhere because returning
<code>undefined
</code>.
</a></p>
3 <p><a href=
"javascript:document.url='elinks.or.cz';">Change the document.url
</a> (which is impossible because it's read-only, but the return value of the statement is used as the link target so it magically still works).
</p>
5 <p><a href=
"javascript:{ document.title = 'This is a test'; document.title += ', this document URL is '+document.url; 'elinks.or.cz' }">Change the document.title and go to elinks.or.cz (return value of statement).
</a></p>