if (document.images) 
   {
      menudir = '/images/menu/';
      home1 = new Image(65,33); home1.src = menudir + 'home1.gif';
      home2 = new Image(65,33); home2.src = menudir + 'home2.gif';
      services1 = new Image(83,33); services1.src = menudir + 'services1.gif';
      services2 = new Image(83,33); services2.src = menudir + 'services2.gif';
      work1 = new Image(99,33); work1.src = menudir + 'work1.gif';
      work2 = new Image(99,33); work2.src = menudir + 'work2.gif';
      about1 = new Image(103,33); about1.src = menudir + 'about1.gif';
      about2 = new Image(103,33); about2.src = menudir + 'about2.gif';
      employment1 = new Image(114,33); employment1.src = menudir + 'employment1.gif';
      employment2 = new Image(114,33); employment2.src = menudir + 'employment2.gif';
      contact1 = new Image(108,33); contact1.src = menudir + 'contact1.gif';
      contact2 = new Image(108,33); contact2.src = menudir + 'contact2.gif';
   }
   function rollOn(imgID) { if (document.images) document.images[imgID].src = eval(imgID + '2.src'); }
   function rollOff(imgID) { if (document.images) document.images[imgID].src = eval(imgID + '1.src'); }