function loginSubmit(form2){ var userName = form2.elements['Yx_vipName']; var password = form2.elements['Yx_vipPassword']; if(userName.value==''){ alert('请输入用户名'); return false } if(password.value==''){ alert('请输入密码'); password.focus(); return false } location.href='?usrname='+userName.value; } document.write("
");