/*	Copyright (c) 2004-2006, The Dojo Foundation	All Rights Reserved.	Licensed under the Academic Free License version 2.1 or above OR the	modified BSD license. For more information on Dojo licensing, see:		http://dojotoolkit.org/community/licensing.shtml*/dojo.provide("dojo.animation.Timer");dojo.require("dojo.lang.func");dojo.animation.Timer = function(intvl){	var timer = null;	this.isRunning = false;	this.interval = intvl;	this.onTick = function(){};	this.onStart = null;	this.onStop = null;	this.setInterval = function(ms){		if (this.isRunning) window.clearInterval(timer);		this.interval = ms;		if (this.isRunning) timer = window.setInterval(dojo.lang.hitch(this, "onTick"), this.interval);	};	this.start = function(){		if (typeof this.onStart == "function") this.onStart();		this.isRunning = true;		timer = window.setInterval(this.onTick, this.interval);	};	this.stop = function(){		if (typeof this.onStop == "function") this.onStop();		this.isRunning = false;		window.clearInterval(timer);	};};