function swap_menu(elm, id)
{
	var obj = {
		copyright : document.getElementById('copyright'),
		menu : document.getElementById('menu')		
	};
	
	obj[id].style.display = (obj[id].style.display == 'none')? '':'none';
	
	var hide = (id == 'copyright')? 'menu':'copyright';
	if(obj[hide])
	{
		obj[hide].style.display = 'none';
	}
	
	elm.blur();
}