anchor.diff:  						case 39:
   						arrowDown('right');
   						break;
  -
  +						
  +						case 37:
  +						arrowDown('left');
  +						break;
  +						
   						case 40:
   						arrowDown('back');
   						break;
  
positive.code: 				}
  				$(document).keydown(function(e) {
  					switch(e.which) {
  						case 37:
  						arrowDown('left');
  						break;
  
  						case 38:
  						arrowDown('up');
  						break;
  
negative.code: 			<div class="unit1of2 joystick center">
  				<h2>Tell me where to go !</h2>
  				<div class="unit1of1 center">
  					<div id="top" class="pad up" data-direction="up">
  						<span>UP</span>
  					</div>
  				</div>
  