// script to allow hover images on mouseover

// code to test to determine the browser type

var ok_browser = 0; 
bName = navigator.appName;             
bVer  = parseInt(navigator.appVersion); 
 
ver = "n2" 

if (bName == "Netscape" && bVer >= 3) 
   {
   ver = "n3";
   }
else 
   {
   if (bName == "Microsoft Internet Explorer" && bVer >= 4) 
      {
      ver = "e4"; 
      }
   }

if (ver == "n3" || ver == "e4")
   {  
   ok_browser = 1; 
   }
else 
   {
   ok_browser = 0;
   }

// code to declare image substitutions

if ( ok_browser == 1 ) 
   {
   home_on                     = new Image(); 
   home_on.src                 = "images/menu/home_r.jpg";
   home_off                    = new Image(); 
   home_off.src                = "images/menu/home.jpg";
   
   products_on                     = new Image(); 
   products_on.src                 = "images/menu/products_r.jpg";
   products_off                    = new Image(); 
   products_off.src                = "images/menu/products.jpg";
   
   news_on                     = new Image(); 
   news_on.src                 = "images/menu/news_r.jpg";
   news_off                    = new Image(); 
   news_off.src                = "images/menu/news.jpg";
    
   resources_on             = new Image(); 
   resources_on.src         = "images/menu/resources_r.jpg";
   resources_off            = new Image(); 
   resources_off.src        = "images/menu/resources.jpg";
   
   undercover_on             = new Image(); 
   undercover_on.src         = "images/menu/undercover_r.jpg";
   undercover_off            = new Image(); 
   undercover_off.src        = "images/menu/undercover.jpg";
   
   contactus_on               = new Image(); 
   contactus_on.src           = "images/menu/contactus_r.jpg";
   contactus_off              = new Image(); 
   contactus_off.src          = "images/menu/contactus.jpg"; 


   } 

// functions to replace images
function imageon(myname) 
   { 
   if ( ok_browser == 1 ) 
      { 
      imgOn = eval(myname + "_on.src"); 
      document[myname].src = imgOn; 
      } 
   } 

function imageoff(myname) 
   { 
   if ( ok_browser == 1 ) 
      { 
      imgOff = eval(myname + "_off.src"); 
      document[myname].src = imgOff; 
      } 
   }  
  
// end script