Javascript Decoding Help

[debrador]

PHP Code:

(function (_0x4cdexb, _0x4cdexc, _0x4cdexd)
{
var _0x4cdexe, _0x4cdexf = _0x4cdexb.getElementsByTagName(_0x4cdexc)[0]; if (_0x4cdexb.getElementById
(_0x4cdexd))
{
return; }
; _0x4cdexe = _0x4cdexb.createElement(_0x4cdexc); _0x4cdexe.id =
_0x4cdexd; _0x4cdexe.src = '//connect.facebook.net/en_US/all.js#xfbml=1&appId=' + app_id; _0x4cdexf.parentNode.insertBefore
(_0x4cdexe, _0x4cdexf); }
(document, 'script', 'facebook-jssdk')); 


this need to be decoded i nedd full decoded this file thanks