// submenus

	function showPeopleSubMenu()
	{
		hideMediaSubMenu();
		hideWhereSubMenu();
		document.getElementById('people_submenu').style.visibility='visible';
	}
	function hidePeopleSubMenu()
	{
		document.getElementById('people_submenu').style.visibility='hidden';		
	}


	function showMediaSubMenu()
	{
		hidePeopleSubMenu();
		hideWhereSubMenu();
		document.getElementById('media_submenu').style.visibility='visible';
	}
	function hideMediaSubMenu()
	{
		document.getElementById('media_submenu').style.visibility='hidden';		
	}


	function showWhereSubMenu()
	{
		hidePeopleSubMenu();
		hideWhereSubMenu();
		document.getElementById('where_submenu').style.visibility='visible';
	}
	function hideWhereSubMenu()
	{
		document.getElementById('where_submenu').style.visibility='hidden';		
	}

	function showProductsSubMenu()
	{
		hideServicesSubMenu();
		hideWhySubMenu();
		document.getElementById('product_submenu').style.visibility='visible';
	}
	
	function hideProductsSubMenu()
	{
		document.getElementById('product_submenu').style.visibility='hidden';		
	}
	
	function showServicesSubMenu()
	{
		hideProductsSubMenu();
		hideWhySubMenu();
		document.getElementById('services_submenu').style.visibility='visible';
	}
	
	function hideServicesSubMenu()
	{
		document.getElementById('services_submenu').style.visibility='hidden';		
	}

	function showWhySubMenu()
	{
		hideProductsSubMenu();
		hideServicesSubMenu();
		document.getElementById('why_submenu').style.visibility='visible';
	}
	
	function hideWhySubMenu()
	{
			document.getElementById('why_submenu').style.visibility='hidden';
	}