var agt = navigator.userAgent.toLowerCase();
	var is_major = parseInt(navigator.appVersion);
	var is_minor = parseFloat(navigator.appVersion);
	var isNS = ((agt.indexOf('mozilla') != -1) && (agt.indexOf('spoofer') == -1) && (agt.indexOf('compatible') == -1) && (agt.indexOf('opera') == -1) && (agt.indexOf('webtv') == -1) && (agt.indexOf('hotjava') == -1));
	var isNS6 = (isNS && (is_major >= 5));
	var isIE = document.all ? true : false

	var navImgLoaded = false;

	function initNavigatie(colourCode) {
		if (document.images) {

			navsdl_on = new Image();
			navsdl_off = new Image();
			navsdl_on.src = '/images/nav/nav-sdl-'+colourCode+'.gif';
			navsdl_off.src = '/images/nav/nav-sdl-off.gif';

			navlingerie_on = new Image();
			navlingerie_off = new Image();
			navlingerie_on.src = '/images/nav/nav-lingerie-'+colourCode+'.gif';
			navlingerie_off.src = '/images/nav/nav-lingerie-off.gif';

			navbadkleding_on = new Image();
			navbadkleding_off = new Image();
			navbadkleding_on.src = '/images/nav/nav-badkleding-'+colourCode+'.gif';
			navbadkleding_off.src = '/images/nav/nav-badkleding-off.gif';

			navcontact_on = new Image();
			navcontact_off = new Image();
			navcontact_on.src = '/images/nav/nav-contact-'+colourCode+'.gif';
			navcontact_off.src = '/images/nav/nav-contact-off.gif';

			navImgLoaded = true;

		}
	}

	function getLayer(layerName) {
		if (isIE) {
			return document.all[layerName];
		} else {
			if (isNS6) {
				return  document.getElementById(layerName);
			} else {
				return  document.layers[layerName];
			}
		}
	}

	function showImg(imgNr) {
		var imageLayer;
		for (i = 0; i <= 9; i++) {
			imageLayer = getLayer('largeimg'+i.toString())
			if (imageLayer) {
				if (i == imgNr)
					imageLayer.style.display = 'block';
				else
					imageLayer.style.display = 'none';
			}
		}
	}

	function showSubNav(navItem) {
		navLayer = getLayer('subnav'+navItem)
		navLayer.style.display = 'block';
  		if (navImgLoaded)
			if (document.images['nav'+navItem+'img'])
				document.images['nav'+navItem+'img'].src = eval('nav'+navItem+'_on.src');
	}

	function hideSubNav(navItem) {
		navLayer = getLayer('subnav'+navItem)
		navLayer.style.display = 'none';
  		if (navImgLoaded)
			if (document.images['nav'+navItem+'img'])
				document.images['nav'+navItem+'img'].src = eval('nav'+navItem+'_off.src');
	}