function web_menu()
{
  var m_var;
  m_var="<table border=0 cellspacing=0 cellpadding=0 class=tf align=center width='98%'><tr align=center height=18>" +
        "<td><a class=h_menu href='http://lunwen.dmjy.net/index.asp'>主页</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=10'>语文</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=11'>德育</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=5'>政治</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=6'>英语</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=7'>数学</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=8'>物理</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=9'>化学</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=2'>历史</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=3'> 地理</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=4'>生物</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=12'>计算机</a></td>" + 
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=1'>自然</a></td>" + 
        "<td><a class=h_menu href='down.asp'>课件</a></td>" +    
        "<td><a class=h_menu href='http://lunwen.dmjy.net/article_list.asp?c_id=13'>学生作品</a></td>" + 
        "</tr></table>"
  return m_var;
}