Example:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Mobile-Web-App: HTML5 Canvas</title>
<script type="text/javascript">
function loadcanvas(){
var canvas;
var context;
//get element by ID of "mycanvas"
canvas = document.getElementById("mycanvas");
//create a "2d" context object
context = canvas.getContext("2d");
drawPath(context);
}
function drawPath(c){
drawQuadraticCurveTo(c, 100);
for (i = 0; i <= 300; i = i + 20)
{
drawQuadraticCurveTo(c, i, i, i);
}
}
function drawQuadraticCurveTo(c, cpx, cpy){
c.lineWidth = 3;
c.strokeStyle = "#000000";
c.beginPath();
c.moveTo(50, 150)
c.quadraticCurveTo(cpx, cpy, 250, 150); //(cpx, cpy, x, y)
c.stroke();
}
</script>
</head>
<body onload="loadcanvas();">
<h1>Mobile-Web-App: HTML5 canvas</h1>
<canvas id="mycanvas" style="border: 5px solid;" width="300" height="300">
Sorry! Your browser doesn't support Canvas.
</canvas>
</body>
</html>
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