function remote_mouse() {
  $.getJSON( "http://www.nottobe.fr/remote_mouse/index.php?mode=display&code=TEST&width=" + $(document).width() + "&height=" + $(document).height(), function(data) {
    $("#remote_mouse").css( { left: data.x - data.offset/2, top: data.y - data.offset/2 });
    $("#remote_mouse_img").attr("src", "http://www.nottobe.fr/remote_mouse/" + data.img);
    $("#remote_mouse_img").attr("width", data.offset);
    setTimeout(remote_mouse, 500);
  });
}
document.write("<div id='remote_mouse' style='position:absolute;'><img id='remote_mouse_img' src='http://www.nottobe.fr/remote_mouse/hand.png' width='20' /></div>");

var x = null;
var y = null;
var shiftDown = false;

document.addEventListener('mousemove', onMouseUpdate, false);

function onMouseUpdate(e) {
  x = e.pageX;
  y = e.pageY;
  shiftDown = e.shiftKey;
}

remote_mouse();