function switchMenu( obj )
	{
		var	img = 'img'+obj;
		var el = document.getElementById( obj );
		if ( el.style.display != 'none' ) { el.style.display = 'none'; eval("document.img"+obj+".src = 'images/btn/navclosed.gif'"); }
		else { el.style.display = ''; eval("document.img"+obj+".src = 'images/btn/navopened.gif'"); }
	}
	
	
	function rollover(id, imgpath){
		document.getElementById(id).src = imgpath;	
		
	}