百度站内搜索 怎么实现 iframe 形式的现实

百度站内搜索 如何实现 iframe 形式的现实
下面的代码希望大家帮我看一下是什么意思？？？ 如果要改成我自己的站 需要怎么修改...

HTML code

<!--google search form begin--><script type="text/javascript" src="http://www.google.com/jsapi"></script> <script type="text/javascript">  google.load('search', '1'); google.setOnLoadCallback(function() {   google.search.CustomSearchControl.attachAutoCompletion('partner-pub-0632032028768696:e6ey12umu6s',document.getElementById('q'), 'cse-search-box');  });</script><form action="http://www.wjapc.com/search.html" id="cse-search-box">  <div>   <input type="hidden" name="cx" value="partner-pub-0632032028768696:e6ey12umu6s" />   <input type="hidden" name="cof" value="FORID:9" />   <input type="hidden" name="ie" value="UTF-8" />   <input type="text" name="q" id="q" autocomplete="off" size="15" />   <input type="submit" name="sa" value="&#x641c;&#x7d22;" />  </div> </form> <script type="text/javascript" src="http://www.google.com.hk/cse/brand?form=cse-search-box&amp;lang=zh-Hans"></script> <!--google search form end--> <!--google search begin--><div id="cse-search-results"></div><script type="text/javascript">  var googleSearchIframeName = "cse-search-results";  var googleSearchFormName = "cse-search-box";  var googleSearchFrameWidth = 960;  var googleSearchDomain = "www.google.com.hk";  var googleSearchPath = "/cse";</script><script type="text/javascript" src="http://www.google.com/afsonline/show_afs_search.js"></script><!--google search end-->