function toggle(category) {
	var sub = 'submenu-' + category;
	var other = (category == 'furniture' ? 'submenu-accents' : 'submenu-furniture' );
	document.getElementById(other).style.display = 'none';
	if(document.getElementById(sub).style.display != 'none') {
		document.getElementById(sub).style.display = 'none';
	}
	else {
		document.getElementById(sub).style.display = '';	
	}

}