pagina = './locais.php';

function familia(){

	family = document.form1.fam.value;
	if (family == 0) { 
		window.alert('Por favor, seleccione se pretende interior ou exterior!');
	}
	else {
		// window.location.href = pagina + "?id=" + family;
		window.location.href = "?id=" + family;
	}
}

function categoria(){

	family = document.form1.fam.value;
	category = document.form1.cat.value;

	if (category == 0) {
	}
	else {
		// window.location.href = pagina + "?id=" + family + "&cat=" + category;
		window.location.href = "?id=" + family + "&cat=" + category;
	}
}

function subcategoria(){

	family = document.form1.fam.value;
	category = document.form1.cat.value;
	subcategory = document.form1.subc.value;

	if (subcategory == 0) {
	}
	else {
		window.location.href = pagina + "?id=" + family + "&cat=" + category + "&sub=" + subcategory;
	}
}