<!--
agent = navigator.userAgent;
var version = navigator.appVersion;
browserVersion = 2;
function lite(imageName,hilite) {
   if (browserVersion == 1) {
      imageShow = eval(hilite + ".src");
      document [imageName].src = imageShow;
   }
}
function norm(imageName,normal) {
   if (browserVersion == 1) {
      imageShow = eval(normal + ".src");
      document [imageName].src = imageShow;
   }
}


<!--
if ((agent.indexOf("a/3",6) == -1) && (agent.indexOf("a/4",6) == -1)) {browserVersion = 2}
   else {browserVersion = 1}
if (browserVersion == 1) {     

btn_01_on = new Image();                           
btn_01_on.src = "Assets/Images/Pnav_btn_01_visit_on.gif";

btn_02_on = new Image();                           
btn_02_on.src = "Assets/Images/Pnav_btn_02_exhib_on.gif";

btn_03_on = new Image();                           
btn_03_on.src = "Assets/Images/Pnav_btn_03_prog_on.gif";

btn_04_on = new Image();                           
btn_04_on.src = "Assets/Images/Pnav_btn_04_calendar_on.gif";

btn_05_on = new Image();                           
btn_05_on.src = "Assets/Images/Pnav_btn_05_join_on.gif";

btn_06_on = new Image();                           
btn_06_on.src = "Assets/Images/Pnav_btn_06_shop_on.gif";

btn_07_on = new Image();                           
btn_07_on.src = "Assets/Images/Pnav_btn_07_e-news_on.gif";


btn_01_off = new Image();
btn_01_off.src =  "Assets/Images/Pnav_btn_01_visit_off.gif";

btn_02_off = new Image();
btn_02_off.src =  "Assets/Images/Pnav_btn_02_exhib_off.gif";

btn_03_off = new Image();  
btn_03_off.src =  "Assets/Images/Pnav_btn_03_prog_off.gif";

btn_04_off = new Image();  
btn_04_off.src =  "Assets/Images/Pnav_btn_04_calendar_off.gif"; 

btn_05_off = new Image();  
btn_05_off.src =  "Assets/Images/Pnav_btn_05_join_off.gif"; 

btn_06_off = new Image();  
btn_06_off.src =  "Assets/Images/Pnav_btn_06_shop_off.gif"; 

btn_07_off = new Image();  
btn_07_off.src =  "Assets/Images/Pnav_btn_07_e-news_off.gif"; 

}