asp实现:
<%
remote_host=lcase(request.ServerVariables("REMOTE_HOST"))
if remote_host="fjt.todayisp.com" then
response.write("<a href=""javascript:window.location.href='http:/'+'/www.abc.com/'"">简体</a>")
else response.write("<a href=""http://fjt.todayisp.com:7751/www.abc.com/"">繁体</a>")
end if
%>