public void Separator()
{
GUIStyle separator = AstarPathEditor.astarSkin.FindStyle ("PixelBox3Separator");
if (separator == null) {
separator = new GUIStyle ();
}
Rect r = GUILayoutUtility.GetRect (new GUIContent (),separator);
if (Event.current.type == EventType.Repaint) {
separator.Draw (r,false,false,false,false);
}
}