//定时更换图片： ?调用：smileChange.start(); ?smileChange.stop();var smileChange = { ???????????start: function () { ???????????????var that = this;//鍐呭眰鐨勫唴灞傚嚱鏁扮殑this浼氬嚭闂 ???????????????this.intervalId = setInterval(function () { ???????????????????clearTimeout(that.timeoutId); ???????????????????$(".third .smile img").attr("src", "img/smile-on-2.png"); ???????????????????that.timeoutId = setTimeout(function () { ???????????????????????$(".third .smile img").attr("src", "img/smile-off-2.png"); ???????????????????}, 500); ???????????????????//console.log("start ?timeout ID "+that.timeoutId); ???????????????}, 1000); ???????????}, ???????????stop: function () { ???????????????console.log("stop timeout id" + this.timeoutId); ???????????????clearInterval(this.intervalId); ???????????????clearTimeout(this.timeoutId); ???????????????console.log("stop interval id" + this.intervalId); ???????????}, ???????????changing: 0, ???????????intervalId: 0, ???????????timeoutId: 0 ???????}js定时更换图片
原文地址：http://www.cnblogs.com/zhangwj/p/7650412.html