browserName = navigator.appName;
       browserVer = parseInt(navigator.appVersion);
               if (browserName == "Netscape" && browserVer >= 3) version = "n3";
               else if (browserName == "Microsoft Internet Explorer" && browserVer >= 4) version =
							"n3";
               else version = "n2";
               
               if (version == "n3") {
               
	       air1on = new Image();
	       air1on.src = "images/home2.gif";
	       air2on = new Image();
	       air2on.src = "images/news2.gif";
         air3on = new Image();
         air3on.src = "images/bio2.gif";
         air4on = new Image();
         air4on.src = "images/music2.gif";
         air5on = new Image();
         air5on.src = "images/photos2.gif";
         air6on = new Image();
         air6on.src = "images/forum2.gif";
         air7on = new Image();
         air7on.src = "images/contact2.gif";

                  

	       air1off = new Image();
	       air1off.src = "images/home.gif";
	       air2off = new Image();
	       air2off.src = "images/news.gif";	       
	       air3off = new Image();
         air3off.src = "images/bio.gif";
	       air4off = new Image();
         air4off.src = "images/music.gif";
         air5off = new Image();
         air5off.src = "images/photos.gif";
         air6off = new Image();
         air6off.src = "images/forum.gif";
         air7off = new Image();
         air7off.src = "images/contact.gif";

            


         }

       function img_act(imgName) {
               if (version == "n3") {
               imgOn = eval(imgName + "on.src");
               document [imgName].src = imgOn;
               }
       }

       function img_inact(imgName) {
               if (version == "n3") {
               imgOff = eval(imgName + "off.src");
               document [imgName].src = imgOff;
               }
       }