function menu(id) {
	
	function menu_type(classname) {
	
		var classname_split = classname.split('_');
		
		return classname_split[0];
		
	}
	
	var menu_item = document.getElementById(id);
	
	var menu_type = menu_type(menu_item.className);
		 
	if (menu_item.className == menu_type + '_up') {
		
		menu_item.className = menu_type + '_over';
		
	} else if (menu_item.className == menu_type + '_over') {
		
		menu_item.className = menu_type + '_up';

	} else if (menu_item.className == menu_type + '_down_up') {
		
		menu_item.className = menu_type + '_down_over';
		
	} else if (menu_item.className == menu_type + '_down_over') {
		
		menu_item.className = menu_type + '_down_up';

	}
	
	
}

function menuclick(id) {
	
	var menu_item = document.getElementById(id);
	
	if (menu_item.className == 'menu_down_over') {
	
		menu_item.className = 'menu_over';
		document.getElementById('sub_' + id).style.display = 'none';
		create_cookie('menu_sub_' + id, 'none', '365');
	
	} else {
		
		menu_item.className = 'menu_down_over';
		document.getElementById('sub_' + id).style.display = '';
		create_cookie('menu_sub_' + id, ' ', '365')
		
	}
	
}

function create_cookie(name, value, days) {

	if (days != '') {
		
		var date = new Date();
		date.setTime(date.getTime() + (days * 24 * 60 * 60 * 1000));
		var expires = '; expires=' + date.toGMTString();
		
	} else {
		
		var expires = '';
		
	}
	
	document.cookie = name + '=' + value + expires + '; path=/';
	
}

function topmenu(id) {
	
	function menu_type(classname) {
	
		var classname_split = classname.split('_');
		
		return classname_split[0];
		
	}
	
	var menu_item = document.getElementById(id);
	
	var menu_type = menu_type(menu_item.className);
		 
	if (menu_item.className == menu_type + '_up') {
		
		menu_item.className = menu_type + '_over';
		
	} else if (menu_item.className == menu_type + '_over') {
		
		menu_item.className = menu_type + '_up';

	}
	
	
}