quad.js Example File

 var canvas = document.getElementById('tutorial');

   // Make sure we don't execute when canvas isn't supported
   if (canvas.getContext){

     // use getContext to use the canvas for drawing
     var ctx = canvas.getContext('2d');

     // Draw shapes

     ctx.beginPath();
     ctx.moveTo(75,25);
     ctx.quadraticCurveTo(25,25,25,62.5);
     ctx.quadraticCurveTo(25,100,50,100);
     ctx.quadraticCurveTo(50,120,30,125);
     ctx.quadraticCurveTo(60,120,65,100);
     ctx.quadraticCurveTo(125,100,125,62.5);
     ctx.quadraticCurveTo(125,25,75,25);
     ctx.stroke();

   }