function formBusca() {
	var valor = $('#busca').val();
	if (valor == '') exit;

	var web = $('#web').val();
	if (web == 'google') {
		window.location = 'http://www.google.com.br/search?hl=pt-BR&q='+valor+'&btnG=Pesquisa+Google';
	} else {
		window.location = 'http://search.msn.com.br/results.aspx?q='+valor+'&go.x=8&go.y=13&form=QBRE';
	}
	
}