Function move

static/editor.md/editormd.js:4527–4535

(e)

                };

                var move = function(e) {
                    e.preventDefault();
                    var orig = e.originalEvent;

                    $(this).parent().css({
                        top  : orig.changedTouches[0].pageY - offset.y,
                        left : orig.changedTouches[0].pageX - offset.x
                    });
                };

                this.bind("touchstart", start).bind("touchmove", move);
            };