function showTail(num) {
	document.getElementById("tail" + num).style.display = "block";
	document.getElementById("taillink" + num).style.display = "none";
}

function searchProducts(feat,opt) {
	if (feat == "*")
		location.href = location.pathname;
	else {
		var query = location.search;
		query += ((query ? "&" : "?") + feat + "=" + opt);
		location.href = location.pathname + query;
	}
}