if (document.images)
   {
     menu1_on= new Image(201,28);
     menu1_on.src="/images/menu1-hover.jpg";  
     menu1_off= new Image(201,28);
     menu1_off.src="/images/menu1.jpg";

     menu2_on= new Image(201,28);
     menu2_on.src="/images/menu2-hover.jpg";  
     menu2_off= new Image(201,28);
     menu2_off.src="/images/menu2.jpg";

     menu3_on= new Image(201,28);
     menu3_on.src="/images/menu3-hover.jpg";  
     menu3_off= new Image(201,28);
     menu3_off.src="/images/menu3.jpg";

     menu4_on= new Image(201,28);
     menu4_on.src="/images/menu4-hover.jpg";  
     menu4_off= new Image(201,28);
     menu4_off.src="/images/menu4.jpg";

     menu5_on= new Image(201,28);
     menu5_on.src="/images/menu5-hover.jpg";  
     menu5_off= new Image(201,28);
     menu5_off.src="/images/menu5.jpg";

     menu6_on= new Image(201,28);
     menu6_on.src="/images/menu6-hover.jpg";  
     menu6_off= new Image(201,28);
     menu6_off.src="/images/menu6.jpg";

     menu7_on= new Image(201,28);
     menu7_on.src="/images/menu7-hover.jpg";  
     menu7_off= new Image(201,28);
     menu7_off.src="/images/menu7.jpg";

     menu8_on= new Image(201,28);
     menu8_on.src="/images/menu8-hover.jpg";  
     menu8_off= new Image(201,28);
     menu8_off.src="/images/menu8.jpg";

     menu9_on= new Image(201,28);
     menu9_on.src="/images/menu9-hover.jpg";  
     menu9_off= new Image(201,28);
     menu9_off.src="/images/menu9.jpg";

     menu10_on= new Image(201,28);
     menu10_on.src="/images/menu10-hover.jpg";  
     menu10_off= new Image(201,28);
     menu10_off.src="/images/menu10.jpg";

     menu11_on= new Image(201,28);
     menu11_on.src="/images/menu11-hover.jpg";  
     menu11_off= new Image(201,28);
     menu11_off.src="/images/menu11.jpg";

     menu12_on= new Image(201,28);
     menu12_on.src="/images/menu12-hover.jpg";  
     menu12_off= new Image(201,28);
     menu12_off.src="/images/menu12.jpg";

     menu13_on= new Image(201,28);
     menu13_on.src="/images/menu13-hover.jpg";  
     menu13_off= new Image(201,28);
     menu13_off.src="/images/menu13.jpg";

     menu14_on= new Image(201,28);
     menu14_on.src="/images/menu14-hover.jpg";  
     menu14_off= new Image(201,28);
     menu14_off.src="/images/menu14.jpg";

     menu15_on= new Image(201,28);
     menu15_on.src="/images/menu15-hover.jpg";  
     menu15_off= new Image(201,28);
     menu15_off.src="/images/menu15.jpg";

     menu16_on= new Image(201,28);
     menu16_on.src="/images/menu16-hover.jpg";  
     menu16_off= new Image(201,28);
     menu16_off.src="/images/menu16.jpg";

     menu17_on= new Image(201,28);
     menu17_on.src="/images/menu17-hover.jpg";  
     menu17_off= new Image(201,28);
     menu17_off.src="/images/menu17.jpg";

     menu18_on= new Image(201,28);
     menu18_on.src="/images/menu18-hover.jpg";  
     menu18_off= new Image(201,28);
     menu18_off.src="/images/menu18.jpg";

     clostridiumdifficile_on= new Image(280,17);
     clostridiumdifficile_on.src="/images/clostridium-difficile-hover.jpg";  
     clostridiumdifficile_off= new Image(280,17);
     clostridiumdifficile_off.src="/images/clostridium-difficile.jpg";

     handwashing_on= new Image(280,17);
     handwashing_on.src="/images/handwashing-hover.jpg";  
     handwashing_off= new Image(280,17);
     handwashing_off.src="/images/handwashing.jpg";

     influenza_on= new Image(280,17);
     influenza_on.src="/images/influenza-hover.jpg";  
     influenza_off= new Image(280,17);
     influenza_off.src="/images/influenza.jpg";

     sunsafety_on= new Image(280,18);
     sunsafety_on.src="/images/sunsafety-hover.jpg";  
     sunsafety_off= new Image(280,18);
     sunsafety_off.src="/images/sunsafety.jpg";

     westnile_on= new Image(280,18);
     westnile_on.src="/images/westnile-hover.jpg";  
     westnile_off= new Image(280,18);
     westnile_off.src="/images/westnile.jpg";

     heatstress_on= new Image(280,18);
     heatstress_on.src="/images/heatstress-hover.jpg";  
     heatstress_off= new Image(280,18);
     heatstress_off.src="/images/heatstress.jpg";

     address_on= new Image(226,54);
     address_on.src="/images/address-hover.jpg";  
     address_off= new Image(226,54);
     address_off.src="/images/address.jpg";

     phone_on= new Image(226,40);
     phone_on.src="/images/phone-hover.jpg";  
     phone_off= new Image(226,54);
     phone_off.src="/images/phone.jpg";

     email_on= new Image(226,43);
     email_on.src="/images/email-hover.jpg";  
     email_off= new Image(226,54);
     email_off.src="/images/email.jpg";

     onlinecontact_on= new Image(226,43);
     onlinecontact_on.src="/images/onlinecontact-hover.jpg";  
     onlinecontact_off= new Image(226,43);
     onlinecontact_off.src="/images/onlinecontact.jpg";

   }

function rollOver(imgName)
 {
   if (document.images)
    {
      imgOn=eval(imgName + "_on.src");
      document[imgName].src= imgOn;
    }
 }

function rollOut(imgName)
 {
   if (document.images)
    {
      imgOff=eval(imgName + "_off.src");
      document[imgName].src= imgOff;
    }
 }