<!-- hide script from old browsers
		
		//detect browser:
		browserName = navigator.appName;
		browserVer = parseInt(navigator.appVersion);
		if (browserName == "Netscape" && browserVer >= 3) browserVer = "1";
		else if (browserName == "Microsoft Internet Explorer" && browserVer == 4) browserVer = "1";
		else browserVer = "2";
		
		//preload images:
		if (browserVer == 1) {
			glowna1 = new Image();
			glowna1.src = "images/glowna.png";
			glowna2 = new Image();
			glowna2.src = "images/glowna_active.png";
			omnie1 = new Image();
			omnie1.src = "images/omnie.png";
			omnie2 = new Image();
			omnie2.src = "images/omnie_active.png";
			oferta1 = new Image();
			oferta1.src = "images/oferta.png";
			oferta2 = new Image();
			oferta2.src = "images/oferta_active.png";
			kontakt1 = new Image();
			kontakt1.src = "images/kontakt.png";
			kontakt2 = new Image();
			kontakt2.src = "images/kontakt_active.png";
		}
		
		//image swapping function:
		function hiLite(imgDocID, imgObjName, comment) {
		if (browserVer == 1) {
		document.images[imgDocID].src = eval(imgObjName + ".src");
		window.status = comment; return true;
		}}
//end hiding -->