document.write('<ul>');
document.write('<li id="small"><a href="#" onclick="switchFontsize(\'fontS\'); return false;" title="小">小</a></li>');
document.write('<li id="medium"><a href="#" onclick="switchFontsize(\'fontM\'); return false;" title="中">中</a></li>');
document.write('<li id="large"><a href="#" onclick="switchFontsize(\'fontL\'); return false;" title="大">大</a></li>');
document.write('</ul>');