$(".active").css(‘border‘,‘1px solid #ddd‘)
curLi.css(‘border‘,‘2px solid red‘)
curLi.css(‘border-right‘,‘none‘)
var company = document.getElementById(‘id_company‘);
company.style.height = ‘23px‘;
company.style.width = ‘339px‘;
原文：http://www.cnblogs.com/wuqingzangyue/p/5750021.html