<li><a href="/example/html/sun.html" target="view_window">Sun</a></li>
<li><a href="/example/html/mercur.html" target="view_window">mercury</a></li>
<li><a href="/example/html/venus.html" target="view_window">venus</a></li>
<li><a href="/example/html/mars.html" target="view_window">mars</a></li>