Javascript UTC to Day of Week, Month

Converting from

HTML

<html>
    <body>
        <script>
      var x=new Date();
x.setFullYear(2015,10,01);
var y=new Date();
y.setFullYear(2015,11,01);
var j=1;
var count=0;
for(var i=0;x<y;i+=J){
    if(x.getDay()==5){
        document.write("Date":+x.getDate()+"/"+(x.getMonth()+1"<br/>");
        x=new Date(x.getTime()+(7*24*60*60*1000));
        j=7;
        count++;
    }
    else{
        j=1;
        x = new Date(x.getTime() + (24 * 60 * 60 * 1000));
             x = new Date(x.getTime() + (24 * 60 * 60 * 1000));
            }
        }
        document.write("total fridays : " + count + "<br>");
    </script>
    </body>
</html>