displayNode = $("#display");
canvasNode = $("<canvas id='canvas1'></canvas>");
canvasNode.attr("width", width);
canvasNode.attr("height", height);
displayNode.append(canvasNode);
context = canvasNode('canvas1').getContext("2d");




canvasNode = document.createElement("canvas");
context = canvasNode.getContext("2d");
displayNode = document.getElementById("display");
canvasNode.setAttribute("width", width);
canvasNode.setAttribute("height", height);
displayNode.appendChild(canvasNode);