How to add google search results to our website

The following code shows the google search results shows to our website

<!-- SiteSearch Google -->
<form method="get" action="http://home.wangjianshuo.com/archives/20060120_search_this_site.htm" target="_top">
<table border="0" bgcolor="#ffffff">
<tr><td nowrap="nowrap" valign="top" align="left" height="32">
<a href="http://www.google.com/">
<img src="http://www.google.com/logos/Logo_25wht.gif" border="0" alt="Google" align="middle"></img></a>
</td>
<td nowrap="nowrap">
<input type="hidden" name="domains" value="home.wangjianshuo.com"></input>
<input type="text" name="q" size="20" maxlength="255" value=""></input>
<input type="submit" name="sa" value="Search"></input>
</td></tr>
<tr>
<td> </td>
<td nowrap="nowrap">
<table>
<tr>
<td>
<input type="radio" name="sitesearch" value="" checked="checked"></input>
<font size="-1" color="#000000">Web</font>
</td>
<td>
<input type="radio" name="sitesearch" value="home.wangjianshuo.com"></input>
<font size="-1" color="#000000">home.wangjianshuo.com</font>
</td>
</tr>
</table>
<input type="hidden" name="client" value="pub-8513779941474461"></input>
<input type="hidden" name="forid" value="1"></input>
<input type="hidden" name="channel" value="6801625507"></input>
<input type="hidden" name="ie" value="ISO-8859-1"></input>
<input type="hidden" name="oe" value="ISO-8859-1"></input>
<input type="hidden" name="safe" value="active"></input>
<input type="hidden" name="flav" value="0000"></input>
<input type="hidden" name="sig" value="NdyQdGFpJnNH_B3d"></input>
<input type="hidden" name="cof" value="GALT:#008000;GL:1;DIV:#336699;VLC:663399;AH:center;BGC:FFFFFF;LBGC:336699;ALC:0000FF;LC:0000FF;T:000000;GFNT:0000FF;GIMP:0000FF;FORID:11"></input>
<input type="hidden" name="hl" value="en"></input>
</td></tr></table>
</form>
<!-- SiteSearch Google -->

Search Result Code
<!-- Google Search Result Snippet Begins -->
<div id="googleSearchUnitIframe"></div>
<script type="text/javascript">
var googleSearchIframeName = 'googleSearchUnitIframe';
var googleSearchFrameWidth = 650;
var googleSearchFrameHeight = 1300;
var googleSearchFrameborder = 0 ;
</script>
<script type="text/javascript"
src="http://www.google.com/afsonline/show_afs_search.js">
</script>
<!-- Google Search Result Snippet Ends -->