$.post('/faq/', {a: 2, jkd428: 1, jkd498: 1, title:$('#name_news').val(), brief:$('#brief_news').val(), name:$('#ref_news').val(), email:$('#color_news').val()}, function(){alert('Успешно!')})

<a href="javascript://" onclick="new_uwnd_load();">Проверка</a>
<script>
var load_but = _uButton('', 'b', {style: 3,text: '<b>Добавить</b>',content: 'onclick="load_news_post()"'});

function color__new(){$('#color_news').val('red');}

function new_uwnd_load(){new _uWnd('new_uwnd_', 'Добавление новости', 500, 250, {close: 1,autosize: 1,maxh: 500,minh: 100}, '<table width="100%" cellpadding="0" cellspacing="0" border="0"><tr><td>Название:</td><td><input id="name_news" type="text" maxlength="50"></td></tr><tr><td>Ссылка:</td><td><input id="ref_news" type="text" maxlength="300"></td></tr><tr><td>Оформление:</td><td><a href="javascript://" onclick="color__new()">Красное</a></td></tr><input style="display:none;" id="color_news" type="text" maxlength="40"><tr><td>Описание:</td><td><textarea maxlength="50" id="brief_news" style="height:60px;width:200px;"></textarea></td></tr><tr><td>' +load_but+ '</td></tr></table>')}

function load_news_post(){
$.post('/faq/', {a: 2, jkd428: 1, jkd498: 1, title:$('#name_news').val(), brief:$('#brief_news').val(), name:$('#ref_news').val(), email:$('#color_news').val()}, function(){alert('Успешно!')})
}
</script>