<!--
	/******************** sub_navigation switching ********************/
	function visibleSub( pId )
	{
		el = document.getElementById('sub_' + pId );
		if( el )
			el.style.visibility = 'visible';
	}
	
	function hiddenSub( pId )
	{
		el = document.getElementById('sub_' + pId );
		if( el )
			el.style.visibility = 'hidden';
	}
	
	/******************** main_navigation rollover ********************/
	function over( pImg ) 
	{
		path = 'media/graphics/navigation/';
		type = 'png';
		if( document.images[ pImg ] ) 
			document.images[ pImg ].src = path + pImg + '_hi.' + type;
	}
	
	function out( pImg ) 
	{
		path = 'media/graphics/navigation/';
		type = 'png';
		if( document.images[ pImg ] )
			document.images[ pImg ].src = path + pImg + '.' + type;
	}
	
	
-->