document.write(''); function CheckForm(){ if (document.loginform.username.value==''||document.loginform.username.value=='UID/用户名/Email'){$.dialog.alert('请输入登录用户名!',function(){document.loginform.username.focus();});return false;} if (document.loginform.password.value==''){$.dialog.alert('请输入登录密码!',function(){document.loginform.password.focus();});return false; } return true;} document.write(' 您有新的消息,请注意查收!');document.write('');