lays this document.</li>
	<li><b>About</b> Displays the program version.</li>
</ul>

<h3><a name="mainview">Main view</a> <a href="#top">&uarr;</a></h3>

<p>The backspace/space key skips to the previous/next page. The home/end key
skips to the first/last page. The arrow, page up and page down keys scroll
the viewport. Pressing control and return jumps to the page before the last
jump.</p>

<p>Using the mouse wheel scrolls up and down. Holding <b>ALT</b> while using
the mouse wheel scrolls left and right. Ho