function hover(id) {
	var menus = document.getElementById('logoMenu').getElementsByTagName('ul');
	var obj = document.getElementById(id+'-ul');
	var a = document.getElementsByTagName('a');
	var span = document.getElementById(id).getElementsByTagName('span');
	for (i=0; i<a.length; i++) {
		if (a[i].id.substring(0, 5) == 'menu-') {
			a[i].getElementsByTagName('span')[0].style.display = 'none';
		};
	};
	for (i=0; i<menus.length; i++) {
		menus[i].style.display = 'none';
	};
	if (obj) {
		obj.style.display = 'block';
	};
	span[0].style.display = 'block';
}

window.onload = function() {
	var a = document.getElementsByTagName('a');
	for (i=0; i<a.length; i++) {
		if (a[i].id.substring(0, 5) == 'menu-') {
			a[i].onmouseover = function() {
				hover(this.id);
			};
		};
	};
}