这段JS怎样解密？

一直纳闷你们哪复制这么多一样加密的代码?
    var fangke_xHead=document.getElementsByTagName('HEAD').item(0);var para=document.getElementById("qq_js");var v;var v=para.src;var tmp=v.split("?");var ids=tmp[1];var url=tmp[0].split("Count.js");function skip(){if(document.getElementById('QQfangke_iframe')==null){var QQfangke_xurl='http://qq-812631263.huantu.net/T-census.php?'+ids;var QQfangke_ref=encodeURIComponent(document.referrer);var QQfangke_page=encodeURIComponent(document.location.href);var QQfangke_url=QQfangke_xurl+'&url='+url[0]+'&llurl='+QQfangke_ref+'&thepage='+QQfangke_page+'&t='+new Date().getTime();var iframe=document.createElement("iframe");iframe.src=QQfangke_url;iframe.id="QQfangke_iframe";iframe.name="QQfangke_iframe";iframe.style.width="0px";iframe.style.height="0px";iframe.scrolling="no";iframe.setAttribute('frameborder','0',0);document.body.appendChild(iframe)}}skip();