var enoughText = "";

function on(name) {
	document[name].src = eval(name + "on.src");
	return 0;
}
function off(name) {
	document[name].src = eval(name + "off.src");
	return 0;
}
		var browserOk = false;
		
		if ( (navigator.appVersion.substring(0,1)) >=4 ) { browserOk = true; }
		if ( ((navigator.appVersion.substring(0,1)) >=3) && (navigator.appName == "Netscape")) {browserOk = true;}
		if (browserOk) {
			image1off = new Image();
			image1off.src = "firmainfo.gif";
			image1on = new Image();
			image1on.src = "knappfirmainfo.gif";
						
			image2off = new Image();
			image2off.src = "tjenester.gif";
			image2on = new Image();
			image2on.src = "knapptjenester.gif";

			image3off = new Image();
			image3off.src = "referanser.gif";
			image3on = new Image();
			image3on.src = "knappreferanser.gif";
			
			image4off = new Image();
			image4off.src = "kontakt.gif";
			image4on = new Image();
			image4on.src = "knappkontakt.gif";
			
			image5off = new Image();
			image5off.src = "forside.gif";
			image5on = new Image();
			image5on.src = "knappforside.gif";	

		}
<!-- 
function visBilde(url) {
	vindu=window.open(url, 'popup', 'width=680,height=510,toolbar=0,location=0,directories=0,status=0,menubar=0,resizable=0,scrollbars=1,left=1,top=1');
	vindu.focus();
}
// -->