//detect browser:
function detect(){
		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) {
				a1 = new Image(79,27);
		a1.src = "images/navigation/navAbout.gif";
		a2 = new Image(79,27);
		a2.src = "images/navigation/navAboutOver.gif";
		a3 = new Image(79,27);
		a3.src = "images/navigation/navAboutDown.gif";
				c1 = new Image(90,27);
		c1.src = "images/navigation/navCustom.gif";
		c2 = new Image(90,27);
		c2.src = "images/navigation/navCustomOver.gif";
		c3 = new Image(90,27);
		c3.src = "images/navigation/navCustomDown.gif";
				e1 = new Image(79,27);
		e1.src = "images/navigation/navEyeBuoy.gif";
		e2 = new Image(79,27);
		e2.src = "images/navigation/navEyeBuoyOver.gif";
		e3 = new Image(79,27);
		e3.src = "images/navigation/navEyeBuoyDown.gif";
				i1 = new Image(90,27);
		i1.src = "images/navigation/navImages.gif";
		i2 = new Image(90,27);
		i2.src = "images/navigation/navImagesOver.gif";
		i3 = new Image(90,27);
		i3.src = "images/navigation/navImagesDown.gif";
				o1 = new Image(90,27);
		o1.src = "images/navigation/navOrder.gif";
		o2 = new Image(90,27);
		o2.src = "images/navigation/navOrderOver.gif";
		o3 = new Image(90,27);
		o3.src = "images/navigation/navOrderDown.gif";
				f1 = new Image(79,27);
		f1.src = "images/navigation/navOrderFr.gif";
		f2 = new Image(79,27);
		f2.src = "images/navigation/navOrderFrOver.gif";
		f3 = new Image(79,27);
		f3.src = "images/navigation/navOrderFrDown.gif";
				d1 = new Image(90,27);
		d1.src = "images/navigation/navCustomFr.gif";
		d2 = new Image(90,27);
		d2.src = "images/navigation/navCustomFrOver.gif";
		d3 = new Image(90,27);
		d3.src = "images/navigation/navCustomFrDown.gif";
						b1 = new Image(79,27);
		b1.src = "images/navigation/navAboutFr.gif";
		b2 = new Image(79,27);
		b2.src = "images/navigation/navAboutFrOver.gif";
		b3 = new Image(79,27);
		b3.src = "images/navigation/navAboutFrDown.gif";
		}
		}
		//image swapping function:
		function hiLite(imgDocID, imgObjName, comment) {
		if (browserVer == 1) {
		document.images[imgDocID].src = eval(imgObjName + ".src");
		window.status = comment; return true;
		}}