$(document).ready(function() {$('.zhezaMenu,.myroomMenu,.liveMarketMenu,.plengMenu').append('<span class="hover"></span>').each(function () {var $span = $('> span.hover', this).css('opacity', 0);$(this).hover(function () {$span.stop().fadeTo(500, 1);},function(){$span.stop().fadeTo(500, 0);});});});