var menu = '  <ul class="menu">	' +
    '<li><a href="/">首页</a></li>	' +
    '<li><a href="/shop/cross/">产品系列</a></li>	' +
    '<li><a href="http://store.taobao.com/shop/view_shop-a8a0a00a2c8f9163b8ac07ff68d6d3ce.htm" target="_blank">淘宝商城</a></li>	' +
    '<li><a href="/news/">热点资讯</a></li>	' +
    '<li><a href="/contact.html">联系我们</a></li>	' +
    '<li><a href="/bbs/" target="_blank">产品论坛</a></li>	' +
    '<li class="search">	' +
    '  <input class="search" type="text" name="textfield" id="textfield" />	' +
    '</li>	' +
    '<li><img src="/images/search.jpg" width="70" height="22" /></li>	' +
  '</ul>	' ;
document.write(menu);