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| <button id="btn">11</button>
<script>
var EventUtil = {
addHandler: function(element, type, handler) {
//绑定事件
//Chrome Firefox IE9等 addEventListener
//IE8及IE8以下的浏览器 attachEvent
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) {
//移除事件
//Chrome Firefox IE9等
//IE8及IE8以下的浏览器
if(element.removeEventListener) {
element.removeEventListener(type, handler, false);
} else if(element.detachEvent) {
element.detachEvent("on" + type, handler);
} else {
element["on" + type] = handler
}
},
getTarget: function(event) {
return event.target || event.srcElement;
},
preventDefault: function(event) {
if(event.preventDefault) {
event.preventDefault();
} else {
event.returnValue = false;
}
},
stopPropagation: function(event) {
if(event.stopPropagation) {
event.stopPropagation()
} else {
event.cancelBubble = true;
}
}
}
var handler=function () {
alert("11");
}
EventUtil.addHandler(btn,"click",handler);
EventUtil.removeHandler(btn,"click",handler);
</script>
|
