old_contents: var width = 800;
  var height = 600;
  var FPS = 60;
  
  var canvasElement = document.getElementById('canvas');
  canvasElement.width = width;
  canvasElement.height = height;
  var ctx = canvasElement;
  
  if(canvasElement.getContext)
  {
  	ctx = canvasElement.getContext("2d");
  
  	setInterval(function() {
  		update();
  		draw();
  	}, 1000/FPS);
  }
  else { alert("Your browser doesn't support <canvas>."); }
  
  function update()
  {
  	
  }
  
  
  function draw()
  {
  	ctx.clearRect(0, 0, width, height);
  }
  
  function getClick(e)
  {
  	var evt = e || window.event;
  	var mx = evt.pageX;
  	var my = evt.pageY;
  	clicked = true;
  }
  
  canvasElement.addEventListner("mousedown", getClick);
  
new_contents: var width = 800;
  var height = 600;
  var FPS = 60;
  
  var canvasElement = document.getElementById('canvas');
  canvasElement.width = width;
  canvasElement.height = height;
  var ctx = canvasElement;
  
  if(canvasElement.getContext)
  {
  	ctx = canvasElement.getContext("2d");
  
  	setInterval(function() {
  		update();
  		draw();
  	}, 1000/FPS);
  }
  else { alert("Your browser doesn't support <canvas>."); }
  
  function update()
  {
  //Hello	
  }
  
  
  function draw()
  {
  	ctx.clearRect(0, 0, width, height);
  }
  
  function getClick(e)
  {
  	var evt = e || window.event;
  	var mx = evt.pageX;
  	var my = evt.pageY;
  	clicked = true;
  }
  
  canvasElement.addEventListner("mousedown", getClick);
  
subject: Update DungeonMaster.js