define(function(require, exports, module) {
	var logger          = require("./logger");


	var indexId = 0;

	var getNextId = function(){
		return indexId ++;
	}

	var eventClass = function(){
		var eventArray = [];
	    this.addEvent = function(name,fn){
	        // logger.debug(['event util addEvent',name,fn]);
	        var evt = {
	            name:name,
	            fn:fn
	        };
	        eventArray.push(evt);
	    }
	    this.removeEvent = function(name,fn){
	        // logger.debug(['event util removeEvent',name,fn]);
	        var newArr = [];
	        for(var i in eventArray){
	            var e = eventArray[i];
	            if(e.name == name && e.fn == fn){
	                // logger.debug("event util removeEvent found:"+name);
	            }else{
	                newArr.push(e);
	            }
	        }
	        eventArray =  newArr;       
	    }
	    this.trigerEvent = function(name,data){
	        // logger.debug(['event util trigerEvent',name,data]);
	        for(var i in eventArray){
	            var e = eventArray[i];
	            if(e && e.name == name){
	                // logger.debug(["event util trigerEvent found:",name,data]);
	                e.fn.apply(window,[data]);
	            }
	        }
	    }

	    this.getEvents = function(){
	    	return eventArray;
	    }
	};


	
	var eventInstances = {};

	/**
	* 创建一个时间处理器实例，传一个名字，如果name为空则实例一个，如果不为空则返回已有的实例或者新建一个
	* @prama 处理器名字，
	* @return 事件处理实例
	*/
    var careteEventInstance = function(name){
    	if(!name){
    	
    		return new eventClass();
    	}

    	if(name in eventInstances){
    	
			return eventInstances[name];
		}
		var instance = new eventClass();
		eventInstances[name] = instance;

	
		return instance;
    }
	

	module.exports = {
		getInstance:careteEventInstance
	};

	window.eventUtil = module.exports;

});