function showNav (SECT, NUM) {
		for (var i=0; i<NUM; i++) {
			var d = document.getElementById(SECT + i);
			d.style.display = 'block'; 
		}
	}
	
	function hideNav (SECT, NUM) {
		for (var i=0; i<NUM; i++) {
			var d = document.getElementById(SECT + i);
			d.style.display = 'none'; 
		}
	}

	function openWin(URL) {
		newWin = window.open(URL,"photos_win","menubar=no,toolbar=no,status=no,scrollbars=no,resizable=no,width=640,height=590");
		if (newWin.opener == null) newWin.opener = window; 
		newWin.opener.name = "ayboston";
		newWin.focus ();
	}