Detect mouse out of WP-ImageFlow2

/* Detect mouse out of imageflow */
function onMouseOut(event) {
        e = event.toElement || event.relatedTarget;
    if ((e === null)) {
    thisObject.dragobject = null; thisObject.dragging = false;
    }
    else if ((e.parentNode == this || e == this || e.parentNode.parentNode == this)) {
        return;
    }
    thisObject.dragobject = null; thisObject.dragging = false;
};

this.imageflowcustom2_div.addEventListener('mouseout',onMouseOut,true);
/* END Detect mouse out of imageflow */