// preload images
	var preload = new Array (
		'/img/menu/on/about_fsg.gif',
		'/img/menu/on/biography.gif',
		'/img/menu/on/books.gif',
		'/img/menu/on/chatboard.gif',
		'/img/menu/on/contact.gif',
		'/img/menu/on/events.gif',
		'/img/menu/on/home.gif',
		'/img/menu/on/kindle_county.gif',
		'/img/menu/on/press_room.gif',
		'/img/menu/on/scott_talks.gif'
	);
	function preloadImages () {
		for (var i = 0; i < preload.length; i++) {
			k = i + 1;
			eval ('image' + k + ' = new Image()');
			eval ('image' + k + '.src = preload[i]');
		}
	}


	// image swapping
	function menuOn (obj) { document.getElementById(obj).src = '/img/menu/on/' + obj + '.gif'; }
	function menuOff (obj) { document.getElementById(obj).src = '/img/menu/off/' + obj + '.gif'; }


	// simple browser sniffer (h/t k10k)
	var isW3C = (document.getElementById) ? true : false;
	var isAll = (document.all) ? true : false;


	// no focused links
	function unblur () { this.blur (); }
	function getLinksToBlur () {
		if ((isW3C) || (isAll)) {
			if (isW3C) {
				var links = document.getElementsByTagName("a");
			} else {
				var links = document.all.tags("a");
			}
			for (i = 0; i < links.length; i++) {
				links[i].onfocus = unblur;
			}
		}
	}

	// tab swapping
	var curDiv = 'tab1';
	function swapDiv (obj) {
		document.getElementById(curDiv).style.display = 'none';
		document.getElementById('menu' + curDiv).className = '';
		document.getElementById(obj).style.display = 'block';
		document.getElementById('menu' + obj).className = 'activeTab';
		curDiv = obj;
	}


	// set jacket popup windows
	function setPopups () {
		if (!document.getElementsByTagName) return;
		var anchors = document.getElementsByTagName('a');
		var w = 500;
		var h = 560;
		for (var i = 0; i < anchors.length; i++) {
			var anchor = anchors[i];
			if (anchor.getAttribute('href') && anchor.getAttribute('rel') == 'popup') anchor.onclick = function() {
				window.open (this.href, 'popup', 'toolbar=0,scrollbars=1,location=0,statusbar=0,menubar=0,resizable=1,width=' + w + ',height=' + h);
				return false;
			}
		}
	}


	window.addEventListener ? window.addEventListener("load",setPopups,false) : window.attachEvent("onload",setPopups);
	window.addEventListener ? window.addEventListener("load",getLinksToBlur,false) : window.attachEvent("onload",getLinksToBlur);
	window.addEventListener ? window.addEventListener("load",preloadImages,false) : window.attachEvent("onload",preloadImages);