Pseudo-Random JavaScript

Just playing and did this code just for fun. Nothing fancy but does the Random job nicely. Check this out:

<button onclick="mkRandom()">GET RANDOMS</button>
<p id="demo"></p>
<script>
function mkRandom() {
    var d = new Date();
    var n = d.getMilliseconds();
    document.getElementById("demo").innerHTML = "<br>Random 0 - 999: ";
    document.getElementById("demo").innerHTML += n;
    document.getElementById("demo").innerHTML += "<br>Random Binary: ";
    document.getElementById("demo").innerHTML += n.toString(2);
    document.getElementById("demo").innerHTML += "<br>Random Decimal 0 - 9: ";
    document.getElementById("demo").innerHTML += n.toString()[0,0];
    document.getElementById("demo").innerHTML += "<br>Random True[1] or False[0]: ";
    if(n >= 500)
    {
     document.getElementById("demo").innerHTML += "TRUE [1]";
    }else
    {
     document.getElementById("demo").innerHTML += "FALSE [0]";
    }
}
</script>

Let's see: