function g(o){
return document.getElementById(o);
}

function HoverLi(n){
for(var i=1;i<=4;i++){
g('tb_'+i).className='';g('tbc_0'+i).style.display = "none";
}
g('tb_'+n).className='on';
g('tbc_0'+n).style.display = "block";
}

function HostHoverLi(n){
for(var i=1;i<=8;i++){
g('hostmenu_0'+i).className='';g('hostbox_0'+i).style.display = "none";
}
g('hostmenu_0'+n).className='on';
g('hostbox_0'+n).style.display = "block";
}

//如果要做成点击后再转到请将<li>中的onmouseover 改成 onclick;