<form action="https://ВАШ САЙТ" id="cse-search-box">         
         <div>         
         <input type="hidden" name="cx" value="partner-pub-2552537688454945:dg404m-yrp0" />         
         <input type="hidden" name="cof" value="FORID:10" />         
         <input type="hidden" name="ie" value="UTF-8" />         
         <input type="text" name="q" size="31" />         
         <input type="submit" name="sa" value="Поиск" />         

         </div>         
</form>         

<script type="text/javascript" src="http://www.google.ru/coop/cse/brand?form=cse-search-box〈=ru"></script>

<div id="cse-search-results"></div>         
<script type="text/javascript">         
         var googleSearchIframeName = "cse-search-results";         
         var googleSearchFormName = "cse-search-box";         
         var googleSearchFrameWidth = 800;         
         var googleSearchDomain = "www.google.ru";         
         var googleSearchPath = "/cse";         
</script>         
<script type="text/javascript" src="http://www.google.com/afsonline/show_afs_search.js"></script>