function changeVocab(menu)
{
	id = menu.value;
	cMenu = document.getElementById('menu-classified');
	if (id=='classified')
		{cMenu.style.display = 'inline';}
	else
		{cMenu.style.display = 'none';}
	
	fMenu = document.getElementById('menu-forum');
	if (id=='forum')
		{fMenu.style.display = 'inline';}
	else
		{fMenu.style.display = 'none';}

	aMenu = document.getElementById('menu-announcement');
	if (id=='announcement')
		{aMenu.style.display = 'inline';}
	else
		{aMenu.style.display = 'none';}

}