docs: function (axis, v) {
              v = Math.floor(v);
              var change = v - this[axis], //change in direction
                  context = Crafty.canvas.context,
                  style = Crafty.stage.inner.style,
                  canvas;
  
              //update viewport and DOM scroll
              this[axis] = v;
  			if (context) {
  				if (axis == '_x') {
  					context.translate(change, 0);
  				} else {
  					context.translate(0, change);
  				}
  				Crafty.DrawManager.drawAll();
  			}
              style[axis == '_x' ? "left" : "top"] = v + "px";
          }