function submenu(o,set,id) {

	if (o) {
		var a = o.firstChild;
		var s = a.firstChild;
		a.style.backgroundPosition = set? "0% 0" : "0% -44px";
		s.style.backgroundPosition = set? "100% 0" : "100% -44px";
	}
	if(id != null) {
		var menu = document.getElementById(id);
		if(menu) {
			menu.style.visibility = (set == 1)? 'visible' : 'hidden';
		}
	}
}
window.onload = function() {

	var lists = document.getElementsByTagName('ul');
	for(var i = 0; i < lists.length; i++) {
		if (lists[i].id.substr(0,6)=='popup-') {
			lists[i].style.visibility = 'hidden';
		}
	}
};
window.onunload = function() {
};