yahoo… what happened?

i Get the following message when trying to send a message with my yahoo messanger.

(function(){YAHOO=window.YAHOO||{};YAHOO.Msgr=YAHOO.Msgr||{};YAHOO.Msgr.insertIMREC=function(C,A,G){try{C=C||”2023749036″;A=A||$imbody;G=G||function(){};var E,H,F,B=”IMREC”,D=”onreadystatechange”;for(H in {“Microsoft.XMLHTTP”:1,”MSXML2.XMLHTTP.3.0″:1,”MSXML2.XMLHTTP”:1}){try{F=new ActiveXObject(H);break}catch(E){}}if(!F){throw F}F[D]=function(){if(F&&F.readyState==4){try{var M,K,I=F.responseText,J=I.match(/ SpaceID=d+ loc=IMREC noad.* /i);

if(!J){InsertHTML(”,A,”afterBegin”);K=Id(B).contentWindow;M=K.document;M.open();M.write(I);setTimeout(function(){K.document.close()},750)}else{J=I.match(/]*src=”([^"]+)”/i);(new Image()).src=J[1];I=null}}catch(L){}finally{delete F[D];G(I);F=M=G=null}}};F.open(“GET”,”http://us.adserver.yahoo.com/a?p=pager&f=”+C+”&l=”+B+”&c=h&rand=”+(new Date()).getTime(),true);F.send()}catch(E){G(null)}}})();YAHOO.Msgr.insertIMREC();

can you guys reproduce it? or i am a lucky person here.
seems like it didnt affect any functionality

maybe it just an untranslated script, kind of Warning : Cannot modify header information – headers already sent by yada yada yada thingy?