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

	// preload images
	var preload = new Array (

		'/img/on/artists.gif',
		'/img/on/exhibitions.gif',
		'/img/on/news.gif',
		'/img/on/about.gif',

		'/img/on/arrowleft.gif',
		'/img/on/arrowright.gif',
		'/img/on/artistlink.gif',
		'/img/on/biography.gif',
		'/img/on/exhibitions_sub.gif',
		'/img/on/press.gif',
		'/img/on/pressrelease.gif',
		'/img/on/reviews.gif',
		'/img/on/works.gif'

	);

	function preloadImages () {
		for (var i = 0; i < preload.length; i++) {
			k = i + 1;
			eval ('img' + k + ' = new Image()');
			eval ('img' + k + '.src = preload[i]');
		}
	}

	// mouseOver image swap
	function mOver (obj) {
		document.getElementById(obj).src = '/img/on/' + obj + '.gif';;
	}

	// mouseOut image swap
	function mOut (obj) {
		document.getElementById(obj).src = '/img/off/' + obj + '.gif';;
	}

	// no focused links
	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;
			}
		}
	}

	function unblur () { this.blur (); }

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

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