function fontsizebtn() {
document.write('<dl class="fsize">');
document.write('<dt class="fsize-title">文字サイズ</dt>');
document.write('<dd class="small"><a href="javascript:;" onclick="setActiveStyleSheet(\'small\');" class="fsize001">小</a></dd>');
document.write('<dd class="middle"><a href="javascript:;" onclick="setActiveStyleSheet(\'middle\');" class="fsize002">中</a></dd>');
document.write('<dd class="large"><a href="javascript:;" onclick="setActiveStyleSheet(\'large\');" class="fsize003">大</a></dd>');
document.write('</dl>');
}