DZ搜索功能新开发，请大家给点建议
DZ现在可以搜索帖子和用户。
我想对搜索功能进行扩充，想实现一个功能：
用户在搜索框输入关键字后，选择要搜索的栏目类别（就像百度那样，搜索图片、贴吧、知道 等等）
搜索出来的内容，不仅要包含当前这个类别中的相关帖子信息，还有一些专题页面
(专题页面是我们自己写的，放在某个固定的目录下。比如用户搜索活动，那么就要把活动的相关html页面也要检索出来).
请大家给点思路，谢谢。
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