javascript 跨浏览器事件处理

<div id="myDiv" style="width:100px; height:100px; border:1px solid #f00;"></div>

<script>
/**
* 跨浏览器事件处理
**/
var EventUtil = {
//添加事件
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;
}
},
//获取事件对象
getEvent:function(event){
return event ? event : window.event;
},
//获取元素对象
getTarget:function(event){
return event.target || event.srcElement;
},
//删除默认事件
preventDefault:function(event){
if(event.preventDefault){
event.preventDefault();
}else{
event.returnValue = false;
}
},
//删除事件
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;s
}
},
//阻止事件冒泡
stopPropagation:function(event){
if(event.stopPropagation){
event.stopPropagation();
}else{
event.cancelBubble = true;
}
},
//获取相关元素(mouseove和mouserout事件可能用的到)
getRelatedTarget:function(event){
if(event.relatedTarget){
return event.relatedTarget;
}else if(event.toElement){
return event.toElement;
}else if(event.fromElement){
return event.fromElement;
}else{
return null;
}
}
};
/**
* 使用方法实例
**/
var myDiv = document.getElementById("myDiv");
//添加事件
EventUtil.addHandler(myDiv, 'click',addEventFun);
//删除事件
//EventUtil.removeHandler(myDiv, 'click', addEventFun);
function addEventFun(event){
//获取事件对象event
var eventName = EventUtil.getEvent(event);
console.log(eventName);
//获取元素对象
var elementTarget = EventUtil.getTarget(event);
console.log(elementTarget);
//删除默认事件
EventUtil.preventDefault(event);//比如a的href跳转
//阻止事件冒泡
EventUtil.stopPropagation(event);//比如body也有click事件,则不执行body的click

}
</script>