Simple event emitter class

emitter.js

var Emitter = function() {
	var self = this;
	var ls = {};
	
	this.emit = function(event) {
		var i, args = [];
		
		for(i = 1; i < arguments.length; i++) {
			var argument = arguments[i];
			
			args.push(argument);
		}
		for(i = 0; i < ls[event].length; i++) {
			ls[event][i].apply(self, args);
		}
	}
	this.on = function(event, listener) {
		if(!ls[event]) {
			ls[event] = [];
		}
		ls[event].push(listener);
	}
	this.removeListener = function(event, listener) {
		var l = [];
		
		for(var i = 0; i < ls[event].length; i++) {
			if(ls[event][i] != listener) {
				l.push(ls[event][i]);
			}
		}
		ls[event] = l;
	}
	this.removeAllListeners = function(event) {
		ls[event] = [];
	}
	this.listeners = function(event) {
		return ls[event];
	}
}
try {
	module.exports = Emitter;
} catch(e) {
	Emitter;
}