내 사이트에 구글 검색엔진 달기

<script type="text/javascript">
var domainroot="www.tagin.net" //자신의 도메인 설정

function Gsitesearch(curobj){
curobj.q.value="site:"+domainroot+" "+curobj.qfront.value
}
</script>

<form action="http://www.google.com/search" method="get" onSubmit="Gsitesearch(this)">
<p>태그인넷 검색기<br />
<input name="q" type="hidden" />
<input name="qfront" type="text" style="width: 180px" /> <input type="submit" value="Search" /></p>
</form>