function SaveAxisLimits
% SaveAxisLimits.m
% Author: Alexander Khaustov; alexander dot khaustov at gmail dot com 
% Copyright (C) 2008 St.-Petersburg Institute of Cardiological Technics (Incart), www.incart.ru
% This software is released under the terms of the GNU General
% Public License (http://www.gnu.org/copyleft/gpl.html).
% 
% Saves axis limits for the current axes to restore later

    %   Save axis limits
    global currlimX currlimY
    currlimX = [];
    if length(get(gca, 'Children'))
      currlimX = get(gca, 'XLim');
      currlimY = get(gca, 'YLim');
    end;
    
return;