复制代码 代码如下:

var EventUtil = {

addHandler: function (element, type, handler) {

if (element.addEventListener) {

element.addEventListener(type, handler, false);

} else if (element.attachEvent) {

element.attachEvent("on" + type, handler);

} else {

element["on" + type] = handler;

}

},

removeHandler: function (element, type, handler) {

if (element.removeEventListener) {

element.removeEventListener(type, handler, false);

} else if (element.detachEvent) {

element.detachEvent("on" + type, handler);

} else {

element["on" + type] = null;

}

}

};

var dom = document.createElement('img');

dom.style = 'display:none;';

dom.src = 'http://www.baidu.com/img/bdlogo.gif';

dom.id = 'map_img';

EventUtil.addHandler(dom, 'error', function(){

alert('你的电脑没有链接网络，连接上网络后才能打开地图！');

});

document.body.appendChild(dom);