ImageSwapping = false;
if (((navigator.appName.charAt(0) == 'N')
      && (navigator.appVersion.charAt(0) >= '3'))
    || ((navigator.appName == 'Microsoft Internet Explorer')
        && (navigator.appVersion.charAt(0) >= '4'))) {

   ImageSwapping = true;

   txtsrch0  = new Image;(77,26)
   txtsrch0.src = '/OfficeLocator/images/text-0.gif';
   txtsrch1 = new Image;(77,26)
   txtsrch1.src = '/OfficeLocator/images/text-2.gif';

   mapsrch0  = new Image;(77,26)
   mapsrch0.src = '/OfficeLocator/images/map-0.gif';
   mapsrch1 = new Image;(77,26)
   mapsrch1.src = '/OfficeLocator/images/map-2.gif';

   lastbus0  = new Image;(77,26)
   lastbus0.src = '/OfficeLocator/images/last-0.gif';
   lastbus1 = new Image;(77,26)
   lastbus1.src = '/OfficeLocator/images/last-2.gif';

   foxboro0  = new Image;(77,26)
   foxboro0.src = '/OfficeLocator/images/fox-0.gif';
   foxboro1 = new Image;(77,26)
   foxboro1.src = '/OfficeLocator/images/fox-2.gif';
}
function SwapImage(ImageName,ImageState) {
  if (ImageSwapping) { document.images[ImageName].src = eval(ImageState + '.src'); }
}