XF 2.2 Eklenti Posbit Kayıt Tarihi ( Ay Gün)

<script>
var a=document.getElementById("registered");                        
today = new Date()
past = new Date({{ date($user.register_date) }}) 
function calcDate(date1,date2) {
    var diff = Math.floor(date1.getTime() - date2.getTime());
    var day = 1000 * 60 * 60 * 24;
    var days = Math.floor(diff/day);
    var months = Math.floor(days/31);
    var years = Math.floor(months/12);
    var message = Math.floor(months/12);
   
    message += months + " Ay "
    message += days + " Gün " 
    return message
    }
a = calcDate(today,past)
document.write(a);
                                                            
</script>
<dd id="registered"></dd>