若登陆,则直接跳转
若未登录,则提醒用户登录
<a href="javascript:;" onclick="focusLink('${url}')" style="cursor: pointer">
function focusLink(url){ var userId = $("#userId_hidden").val(); if(userId.length == 0){ window.scrollTo(0,document.body.scrollHeight*0.08); $("#username").focus(); return; } window.open(url); }