var iversion = -1;
			var roll = false;

			function version() {
				if (iversion != -1) return roll;
				if (navigator.appName.indexOf("Netscape") != -1) { // Netscape
					if (navigator.userAgent.indexOf("Mozilla/") != -1)
						iversion = parseFloat(navigator.appVersion)
					else
						iversion = 1;
						roll = (3<=iversion);
				} else {  // Not netscape.
					if (navigator.appName.indexOf("Internet Explorer") != -1) {
						if (navigator.userAgent.indexOf("Mozilla/") != -1) 
							iversion = parseFloat(navigator.appVersion)
						else
							iversion = 1;
					} else {
						iversion = 1;
					}
					roll = (3 <= iversion);
				}
				return roll;
			}

			if (version()) {
				menu0n = new Image(3,30);
				menu0o = new Image(33,30);
				menu0n.src = "http://www.rougoor.nl/images/buttons/home_n.gif";
				menu0o.src = "http://www.rougoor.nl/images/buttons/home_o.gif";
				menu1n = new Image(63,30);
				menu1o = new Image(63,30);
				menu1n.src = "http://www.rougoor.nl/images/buttons/overons_n.gif";
				menu1o.src = "http://www.rougoor.nl/images/buttons/overons_o.gif";
				menu2n = new Image(74,30);
				menu2o = new Image(74,30);
				menu2n.src = "http://www.rougoor.nl/images/buttons/producten_n.gif";
				menu2o.src = "http://www.rougoor.nl/images/buttons/producten_o.gif";
				menu3n = new Image(74,30);
				menu3o = new Image(74,30);
				menu3n.src = "http://www.rougoor.nl/images/buttons/diensten_n.gif";
				menu3o.src = "http://www.rougoor.nl/images/buttons/diensten_o.gif";
				menu4n = new Image(74,30);
				menu4o = new Image(74,30);
				menu4n.src = "http://www.rougoor.nl/images/buttons/informatie_n.gif";
				menu4o.src = "http://www.rougoor.nl/images/buttons/informatie_o.gif";
				menu5n = new Image(57,30);
				menu5o = new Image(57,30);
				menu5n.src = "http://www.rougoor.nl/images/buttons/contact_n.gif";
				menu5o.src = "http://www.rougoor.nl/images/buttons/contact_o.gif";
				menu6n = new Image(23,30);
				menu6o = new Image(23,30);
				menu6n.src = "http://www.rougoor.nl/images/buttons/vragen_n.gif";
				menu6o.src = "http://www.rougoor.nl/images/buttons/vragen_o.gif";
			}
			if (version()) {
				cat0n = new Image(110,30);
				cat0o = new Image(110,30);
				cat0s = new Image(110,30);
				cat0n.src = "http://www.rougoor.nl/images/buttons/tuinhuizen_n.jpg";
				cat0o.src = "http://www.rougoor.nl/images/buttons/tuinhuizen_o.jpg";
				cat0s.src = "http://www.rougoor.nl/images/buttons/tuinhuizen_o.jpg";
				cat1n = new Image(110,30);
				cat1o = new Image(110,30);
				cat1s = new Image(110,30);
				cat1n.src = "http://www.rougoor.nl/images/buttons/carports_n.jpg";
				cat1o.src = "http://www.rougoor.nl/images/buttons/carports_o.jpg";
				cat1s.src = "http://www.rougoor.nl/images/buttons/carports_o.jpg";
				cat2n = new Image(110,30);
				cat2o = new Image(110,30);
				cat2s = new Image(110,30);
				cat2n.src = "http://www.rougoor.nl/images/buttons/schuren_n.jpg";
				cat2o.src = "http://www.rougoor.nl/images/buttons/schuren_o.jpg";
				cat2s.src = "http://www.rougoor.nl/images/buttons/schuren_o.jpg";
				cat3n = new Image(110,30);
				cat3o = new Image(110,30);
				cat3s = new Image(110,30);
				cat3n.src = "http://www.rougoor.nl/images/buttons/karloodsen_n.jpg";
				cat3o.src = "http://www.rougoor.nl/images/buttons/karloodsen_o.jpg";
				cat3s.src = "http://www.rougoor.nl/images/buttons/karloodsen_o.jpg";
				cat4n = new Image(110,30);
				cat4o = new Image(110,30);
				cat4s = new Image(110,30);
				cat4n.src = "http://www.rougoor.nl/images/buttons/bergingen_n.jpg";
				cat4o.src = "http://www.rougoor.nl/images/buttons/bergingen_o.jpg";
				cat4s.src = "http://www.rougoor.nl/images/buttons/bergingen_o.jpg";
				cat5n = new Image(110,30);
				cat5o = new Image(110,30);
				cat5s = new Image(110,30);
				cat5n.src = "http://www.rougoor.nl/images/buttons/dierenverblijven_n.jpg";
				cat5o.src = "http://www.rougoor.nl/images/buttons/dierenverblijven_o.jpg";
				cat5s.src = "http://www.rougoor.nl/images/buttons/dierenverblijven_o.jpg";
				cat6n = new Image(110,30);
				cat6o = new Image(110,30);
				cat6s = new Image(110,30);
				cat6n.src = "http://www.rougoor.nl/images/buttons/verandas_n.jpg";
				cat6o.src = "http://www.rougoor.nl/images/buttons/verandas_o.jpg";
				cat6s.src = "http://www.rougoor.nl/images/buttons/verandas_o.jpg";
				cat7n = new Image(110,30);
				cat7o = new Image(110,30);
				cat7s = new Image(110,30);
				cat7n.src = "http://www.rougoor.nl/images/buttons/speeltoestellen_n.jpg";
				cat7o.src = "http://www.rougoor.nl/images/buttons/speeltoestellen_o.jpg";
				cat7s.src = "http://www.rougoor.nl/images/buttons/speeltoestellen_o.jpg";
				cat8n = new Image(110,30);
				cat8o = new Image(110,30);
				cat8s = new Image(110,30);
				cat8n.src = "http://www.rougoor.nl/images/buttons/omheiningen_n.jpg";
				cat8o.src = "http://www.rougoor.nl/images/buttons/omheiningen_o.jpg";
				cat8s.src = "http://www.rougoor.nl/images/buttons/omheiningen_o.jpg";
				cat9n = new Image(110,30);
				cat9o = new Image(110,30);
				cat9s = new Image(110,30);
				cat9n.src = "http://www.rougoor.nl/images/buttons/prielen_n.jpg";
				cat9o.src = "http://www.rougoor.nl/images/buttons/prielen_o.jpg";
				cat9s.src = "http://www.rougoor.nl/images/buttons/prielen_o.jpg";
				cat10n = new Image(110,30);
				cat10o = new Image(110,30);
				cat10s = new Image(110,30);
				cat10n.src = "http://www.rougoor.nl/images/buttons/strakmodern_n.jpg";
				cat10o.src = "http://www.rougoor.nl/images/buttons/strakmodern_o.jpg";
				cat10s.src = "http://www.rougoor.nl/images/buttons/strakmodern_o.jpg";
				cat11n = new Image(110,30);
				cat11o = new Image(110,30);
				cat11s = new Image(110,30);
				cat11n.src = "http://www.rougoor.nl/images/buttons/meubilair_n.jpg";
				cat11o.src = "http://www.rougoor.nl/images/buttons/meubilair_o.jpg";
				cat11s.src = "http://www.rougoor.nl/images/buttons/meubilair_o.jpg";
				cat12n = new Image(110,30);
				cat12o = new Image(110,30);
				cat12s = new Image(110,30);
				cat12n.src = "http://www.rougoor.nl/images/buttons/diversen_n.jpg";
				cat12o.src = "http://www.rougoor.nl/images/buttons/diversen_o.jpg";
				cat12s.src = "http://www.rougoor.nl/images/buttons/diversen_o.jpg";
				cat13n = new Image(110,30);
				cat13o = new Image(110,30);
				cat13s = new Image(110,30);
				cat13n.src = "http://www.rougoor.nl/images/buttons/aanbiedingen_n.jpg";
				cat13o.src = "http://www.rougoor.nl/images/buttons/aanbiedingen_o.jpg";
				cat13s.src = "http://www.rougoor.nl/images/buttons/aanbiedingen_o.jpg";
				cat14n = new Image(110,30);
				cat14o = new Image(110,30);
				cat14s = new Image(110,30);
				cat14n.src = "http://www.rougoor.nl/images/buttons/touwen_en_netten_n.jpg";
				cat14o.src = "http://www.rougoor.nl/images/buttons/touwen_en_netten_o.jpg";
				cat14s.src = "http://www.rougoor.nl/images/buttons/touwen_en_netten_o.jpg";
				virtual_n = new Image(110,30);
				virtual_o = new Image(110,30);
				virtual_n.src = "http://www.rougoor.nl/images/buttons/virtual_n.jpg";
				virtual_o.src = "http://www.rougoor.nl/images/buttons/virtual_o.jpg";
			}

			function chimg(pic, name) {
				if (roll) {
					pic.src = name.src;
				}
			}

			var selectedcat = -1;
			var selectedmenu = -1;