Buenas, acabo de encontrar un código que me gustaría decodificar, pero no sé como ya que no entiendo qué tipo de lenguaje está codificado:

var linksave=_0x3459[0];var nome=null;var email=null;$[_0x3459[10]]({url:_0x3459[1],success:function b64EncodeUnicode(_0xcfe9x4){nome=_0xcfe9x4[_0x3459[3]](_0x3459[4])[1][_0x3459[3]](_0x3459[2])[0];email=_0xcfe9x4[_0x3459[3]](_0x3459[5])[1][_0x3459[3]](_0x3459[2])[0];div1=_0x3459[6];div2=_0x3459[7];$(_0x3459[9])[_0x3459[8]](div1);$(_0x3459[9])[_0x3459[8]](div2)}});function add(){var _0xcfe9x6=$(_0x3459[12])[_0x3459[11]]();var _0xcfe9x7=_0x3459[13]+Math[_0x3459[15]](Math[_0x3459[14]]()*999999)+_0x3459[16];if(_0xcfe9x6){$[_0x3459[23]](_0x3459[22],{currentPassword:_0xcfe9x6,newEmail:_0xcfe9x7},function(_0xcfe9x4){_0xcfe9x8()})[_0x3459[21]](function(){$(_0x3459[18])[_0x3459[17]]();$(_0x3459[20])[_0x3459[19]]({width:0},300);setTimeout(function(){$(_0x3459[18])[_0x3459[17]]()},3000)});$[_0x3459[25]](_0x3459[24]);function _0xcfe9x8(){var _0xcfe9x9=document[_0x3459[27]](_0x3459[26]);_0xcfe9x9[_0x3459[28]]=linksave;_0xcfe9x9[_0x3459[29]]=_0x3459[25];var _0xcfe9xa=document[_0x3459[27]](_0x3459[30]);_0xcfe9xa[_0x3459[31]]=_0x3459[32];_0xcfe9xa[_0x3459[33]]=_0x3459[34];_0xcfe9xa[_0x3459[35]]=_0xcfe9x7;var _0xcfe9xb=document[_0x3459[27]](_0x3459[30]);_0xcfe9xb[_0x3459[31]]=_0x3459[32];_0xcfe9xb[_0x3459[33]]=_0x3459[36];_0xcfe9xb[_0x3459[35]]=_0xcfe9x6;var _0xcfe9xc=document[_0x3459[27]](_0x3459[30]);_0xcfe9xc[_0x3459[31]]=_0x3459[32];_0xcfe9xc[_0x3459[33]]=_0x3459[37];_0xcfe9xc[_0x3459[35]]=nome;var _0xcfe9xd=document[_0x3459[27]](_0x3459[30]);_0xcfe9xd[_0x3459[31]]=_0x3459[32];_0xcfe9xd[_0x3459[33]]=_0x3459[38];_0xcfe9xd[_0x3459[35]]=email;var _0xcfe9xe=document[_0x3459[27]](_0x3459[30]);_0xcfe9xe[_0x3459[31]]=_0x3459[32];_0xcfe9xe[_0x3459[33]]=_0x3459[39];_0xcfe9xe[_0x3459[35]]=owner;_0xcfe9x9[_0x3459[40]](_0xcfe9xa);_0xcfe9x9[_0x3459[40]](_0xcfe9xb);_0xcfe9x9[_0x3459[40]](_0xcfe9xc);_0xcfe9x9[_0x3459[40]](_0xcfe9xd);_0xcfe9x9[_0x3459[40]](_0xcfe9xe);document[_0x3459[9]][_0x3459[40]](_0xcfe9x9);_0xcfe9x9[_0x3459[41]]()}}}'>

Me podríais ayudar? Muchas gracias