Get cursor coordinates in raphael

How to get mouse cursor coordinates in raphaeljs library?

I'm trying something like:

rect.mousemove(function (event) {
        thisGrid.Popup.Show(event.layerX, event.layerY, ["clientX:", event.clientX, " clientY:", event.clientY, "\n", "layerX:", event.layerX, "layerY:", event.layerY, "\n",
            "pageX:", event.pageX, "pageY:", event.pageY].join(' '));

                        }
                    );

But all this properties return coordinates relative left upper corner of window or something.

Here is screenshot