switch(location.host){
    case "dance.lymtv.com":
    location.href="http://dance.lymtv.com/zhiliaoyi/index.htm"
    break;   
    case "www.bjjw163.com":
    location.href="http://www.bjjw163.com/jinjiguang/index.htm"
    break;
    case "www.lymtv.com":
    location.href="http://dance.lymtv.com/zhiliaoyi/index.htm"
    break;	
	
    }