JS Gen Random IP Address And Port SRC

<center>
<body bgcolor="black">
<button id="video" onclick="drawe();"><b><font color=green>Gen Random IP Address And Port
</button>
<script>
  function drawe(){
    var rand=Math.floor(Math.random()*256);
    var rand2=Math.floor(Math.random()*256);
    var rand3=Math.floor(Math.random()*256);
    var rand4=Math.floor(Math.random()*256);
var port=Math.floor(Math.random()*9999);
    document.body.innerHTML=document.body.innerHTML+'<b><font color=white>'+(rand+'.'+rand2+'.'+rand3+'.'+rand4+':'+port+'<br>');
  }
</script>
</body>
  </center>