html上图片中区域点击实例

<IMG alt="" src="images/hoteladdr.gif" height="404" usemap="#Map3" border="0"> 
                                    <map name="Map3">
                                        <area shape="rect" coords="100,170,270,200" href="http://www.sheratongrand-shanghai.com"
                                            target="_blank">
                                        <area shape="rect" coords="110,210,280,240" href="http://www.renaissance-shanghai.com"
                                            target="_blank">
                                        <area shape="rect" coords="410,130,515,150" href="http://www.galaxyhotel.com" target="_blank">
                                    </map>