window.CusEventTarget = function () { this._listener = {}; }; CusEventTarget.prototype = { constructor: this, addEvent: function (type, fn) { if (typeof type === "string" && typeof fn === "function") { if (typeof this._listener[type] === "undefined") { this._listener[type] = [fn]; } else { this._listener[type].push(fn); } } return this; }, addEvents: function (obj) { obj = typeof obj === "object" ? obj : {}; var type; for (type in obj) { if (type && typeof obj[type] === "function") { this.addEvent(type, obj[type]); } } return this; }, addMutipleEvents: function (types, fn) { types = types instanceof Array ? types : []; var type; for (var i in types) { type = types[i] this.addEvent(type, fn); } return this; }, fireEvent: function (type,data) { if (type && this._listener[type]) { var events = { type: type, target: this }; for (var length = this._listener[type].length, start = 0; start < length; start += 1) { this._listener[type][start].call(this,data, events); } } return this; }, fireEvents: function (array) { if (array instanceof Array) { for (var i = 0, length = array.length; i < length; i += 1) { this.fireEvent(array[i]); } } return this; }, removeEvent: function (type, key) { var listeners = this._listener[type]; if (listeners instanceof Array) { if (typeof key === "function") { for (var i = 0, length = listeners.length; i < length; i += 1) { if (listeners[i] === listener) { listeners.splice(i, 1); break; } } } else if (key instanceof Array) { for (var lis = 0, lenkey = key.length; lis < lenkey; lis += 1) { this.removeEvent(type, key[lenkey]); } } else { delete this._listener[type]; } } return this; }, removeEvents: function (params) { if (params instanceof Array) { for (var i = 0, length = params.length; i < length; i += 1) { this.removeEvent(params[i]); } } else if (typeof params === "object") { for (var type in params) { this.removeEvent(type, params[type]); } } return this; } };