http://www.ks5u.com/down/2009-5/3/221469.shtml
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if(chkid != null){return true; }
else {return false; }
}
if (chkdiv('count')) {
document.getElementById('count').innerHTML='日1618 周1621 月1634 总2176';
}
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document.getElementById('count').innerHTML=''
document.getElementById('count').previousElementSibling.innerHTML='';
if (chkdiv('Res_Prives')) {
document.getElementById('Res_Prives').innerHTML='在线预览
';
}