Javascript JSON and ParseJson

JSON result

echo '{"srt":"'.$rw->idx.'","nosur" : "'.$rw->nosur.'","kode": "'.$rw->kode.'", "cetak" : "'.$rw->cetak.'", "url" : "'.$rw->url.'"}';

Parse It

$.get("?ajax=../cetak/print2&cetak=" + srt,function(response){
        if(response!=""){
            var json=$.parseJSON(response);
            $('#printmodal').modal();                   
            fmcetak=document.forms['fmcetak'];
            fmcetak.action='.?ajax='+loader+'&srt='+srt+'&src='+src;
            fmcetak['nosur'].value=json['nosur'];
            fmcetak.submit();
        }
});