Something

<script type="text/javascript">
	function pesquisa(pesq) {
	alert(pesq);
		document.getElementById('google').style.display='none';
		document.getElementById('torrents').style.display='none';
		if (pesq == "google")
		{
			document.getElementById('google').style.display='block';
		}
		if (pesq == "torrents")
		{

			document.getElementById('torrents').style.display='block';
		}
	}
</script>