设为首页加入收藏网站地图联系我们

首页课程作品视频名师社区

var _bdhmProtocol = (("https:" == document.location.protocol) ? " https://" : " http://"); document.write(unescape("%3Cscript src='" + _bdhmProtocol + "hm.baidu.com/h.js%3Fe5a8415ec9c22dc073e6cc2a2105b531' type='text/javascript'%3E%3C/script%3E")); document.write('' +'
'); $(window).bind('scroll',function(){$(this).scrollTop()>0?$('.olbox').css('marginTop',16):$('.olbox').css('marginTop',60)}); function hiden(ho){$(ho).toggle(500);}