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("
")