function googlesearch() {
	
	cerca = document.google.cerca.value;
	site = document.google.site.value;
	if (cerca != "") {		
		document.google.method = "get";
		document.google.q.value = cerca + ' ' + site
		document.google.action = "http://www.google.com/search";
		document.google.submit();
	} else {
		alert('inserire i parametri di ricerca.')
	}
}

function googlesearch_2() {

	cerca = document.google.cerca.value;
	site = document.google.site.value;
	if (cerca != "") {		
		document.google.method = "get";
		document.google.q.value = cerca + ' ' + site
		document.google.action = "http://www.google.com/search";
		document.google.submit();
	} else {
		alert('inserire i parametri di ricerca.')
	}

}