Canvas drawImage example 1

function boot() {
  draw(document.getElementById('canvas').getContext('2d'));
  draw(document.getElementById('vmlcanvas').getContext('2d'));
}
function draw(ctx) {
  var img = new Image();
  img.onload = function(){
      ctx.translate(-10, 5);
      ctx.scale(1.2, 0.8);
      ctx.rotate(5 * Math.PI / 180);

    ctx.drawImage(img,0,0);
    ctx.beginPath();
    ctx.moveTo(30,96);
    ctx.lineTo(70,66);
    ctx.lineTo(103,76);
    ctx.lineTo(170,15);
    ctx.stroke();
  }
  img.src = 'images/backdrop.png?' + new Date().getTime();
}