JS Canvas Draw Words Of All Diff Sizes SRC

<html>
<body onload="
Draw();">
<canvas id="myCanvas" width="500" height="500"
style="border:1px solid #d3d3d3;">
Your browser does not support the canvas element.
</canvas>
<script>
var ii=1;
function Draw(){
ii++;
var intt=prompt("Enter #:");
var t=prompt('Enter Text To Display:');
for(var i=0;i<intt;i++){
var canvas = document.getElementById("myCanvas");
var ctx=canvas.getContext("2d");
ctx.font="50px Comic Sans MS";
ctx.fillStyle = "red";
ctx.textAlign = "center";
ctx.fillText(""+t,Math.floor(Math.random()*500)+ii,Math.floor(Math.random()*500+ii),ii++);
}
}
</script>
</body>
</html>