var img1 = new Image();
var img2 = new Image();
var img3 = new Image();
var img4 = new Image();
var img5 = new Image();

// pre-load highlight images
function init() {
   img1.src = "grafik/hovedmenu/aboutHoerning.gif";
   img2.src = "grafik/hovedmenu/floorsB.gif";
   img3.src = "grafik/hovedmenu/accessoriesB.gif";
   img4.src = "grafik/hovedmenu/referencesB.gif";
   img5.src = "grafik/hovedmenu/newsB.gif";
}

// highlight a link
function highlight(img) {
   document[img].src = "grafik/hovedmenu/" + img + "B.gif";
}

// un-highlight a link
function unhighlight(img) {
   document[img].src = "grafik/hovedmenu/" + img + "W.gif";
}<!--LiveInternet counter--><script type="text/javascript"><!--
				document.write("<a href='http://www.liveinternet.ru/click' "+
				"target=_blank><img src='http://counter.yadro.ru/hit?t52.13;r"+
				escape(document.referrer)+((typeof(screen)=="undefined")?"":
				";s"+screen.width+"*"+screen.height+"*"+(screen.colorDepth?
				screen.colorDepth:screen.pixelDepth))+";u"+escape(document.URL)+
				";"+Math.random()+
				"' alt='' title='LiveInternet: показано число просмотров и"+
				" посетителей за 24 часа' "+
				"border='0' width=1 height=1><\/a>")
				//--></script><!--/LiveInternet-->