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    document.getElementById("head").innerHTML = '<h1><a class="title" href="index.xhtml">Getting Down with Logic Circuits</a></h1><table id="navigation" class="c2" width="100%" style="margin: auto;" cellpadding="0" cellspacing="0"><tr><td class="c2" id="s1"><a href="lesson1.xhtml"><span>Lesson 1</span></a></td><td class="c2" id="s2"><a href="lesson2.xhtml"><span>Lesson 2</span></a></td><td class="c2" id="s3"><a href="lesson3.xhtml"><span>Lesson 3</span></a></td><td class="c2" id="s4"><a href="lesson4.xhtml"><span>Lesson 4</span></a></td><td class="c2" id="s5"><a href="lesson5.xhtml"><span>Lesson 5</span></a></td></tr><tr><td colspan="5"><div class="c3">By Peter Bui, Iliana Vazuka, Joshua Eddy and Jeffrey Elkner</div></td></tr></table>';
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