var oldid = "";
layerRef = "";
styleRef =  "";
function showNav(id){
if (parseInt(navigator.appVersion) < 5) {
	if (navigator.appName == "Netscape"){
		layerRef = ".layers"
		styleRef = ""
		}
	if (navigator.appName == "Microsoft Internet Explorer"){
		layerRef = ".all"
		styleRef = ".style"
		}
	if (oldid){
		eval("document" + layerRef + "[oldid]" + styleRef + ".visibility = 'hidden'")
		}
	eval("document" + layerRef + "[id]" + styleRef + ".visibility = 'visible'")
	oldid = id
}	
else{
var divtags = document.getElementsByTagName("div");
	if (oldid){
		eval("divtags[oldid].style.visibility = 'hidden'");
		}
	eval("divtags[id].style.visibility = 'visible'");
	oldid = id;
	}
}

function imgOn(imgName){
	if (document.images) {
		document[imgName].src = eval(imgName + "on.src");
		}
	}
	
function imgOff(imgName){
	if (document.images) {
		document[imgName].src = eval(imgName + "off.src");
		}
	}
	
if (document.images){
        img1on = new Image ();
      	img1off = new Image ();
        img2on = new Image ();
      	img2off = new Image ();
        img3on = new Image ();
      	img3off = new Image ();
        img4on = new Image ();
      	img4off = new Image ();
        img5on = new Image ();
      	img5off = new Image ();
        img6on = new Image ();
      	img6off = new Image ();
        img7on = new Image ();
      	img7off = new Image ();
        img8on = new Image ();
      	img8off = new Image ();
        img1on.src = "indximgs/active1.gif";
	img1off.src = "indximgs/inactive1.gif";
        img2on.src = "indximgs/active2.gif";
	img2off.src = "indximgs/inactive2.gif";
        img3on.src = "indximgs/active3.gif";
	img3off.src = "indximgs/inactive3.gif";
        img4on.src = "indximgs/active4.gif";
	img4off.src = "indximgs/inactive4.gif";
        img5on.src = "indximgs/active5.gif";
	img5off.src = "indximgs/inactive5.gif";
        img6on.src = "indximgs/active6.gif";
	img6off.src = "indximgs/inactive6.gif";	
        img7on.src = "indximgs/active7.gif";
	img7off.src = "indximgs/inactive7.gif";	
        img8on.src = "indximgs/active8.gif";
	img8off.src = "indximgs/inactive8.gif";	
	} 
else{
        img1off = "";
        img1on = "";
        document.img1 = "";
        img2off = "";
        img2on = "";
        document.img2 = "";        
        img3off = "";
        img3on = "";
        document.img3 = "";
        img4off = "";
        img4on = "";
        document.img4 = "";        
        img5off = "";
        img5on = "";
        document.img5 = "";
        img6off = "";
        img6on = "";
        document.img6 = "";        
        img7off = "";
        img7on = "";
        document.img7 = "";        
        img8off = "";
        img8on = "";
        document.img8 = "";        
        }

function openBrowserWindow(theURL,winName,features) {
   window.open(theURL,winName,features);
   }