a.blue,a.blue:link,a.blue:visited,a.blue:active,a.blue:hover {color:#0000ff; text-decoration:underline}
a,a:link,a:visited,a:active{text-decoration:none}
a:hover{color:#ff0000; text-decoration:underline}
a.blue_n,a.blue_n:link,a.blue_n:visited,a.blue_n:active{color:#0000ff; text-decoration:none}
a.blue_n:hover {color:#ff0000; text-decoration:none}