function sbar(st){st.style.backgroundColor='#3d3ded';st.style.color='#ffffff';}
function cbar(st){st.style.backgroundColor='';st.style.color='';}

  sty = '<table border=1 cellpadding=0 cellspacing=1 bordercolor="3d3ded" width=180>';
  sty += '<tr><td align=center><a href="index.html"><div class="menu" onmouseover=sbar(this) onmouseout=cbar(this)>公司簡介</div></a></td></tr>';
  sty += '<tr><td align=center><a href="product.html"><div class="menu" onmouseover=sbar(this) onmouseout=cbar(this)>代理產品</div></a></td></tr>';
  sty += '<tr><td align=center><a href="catalog.html"><div class="menu" onmouseover=sbar(this) onmouseout=cbar(this)>產品目錄</div></a></td></tr>';
  sty += '<tr><td align=center><a href="contact.html"><div class="menu" onmouseover=sbar(this) onmouseout=cbar(this)>連絡我們</div></a></td></tr>';
  sty += '</table>';

  document.write(sty);