// mouseOver.js

  if (document.images) {
    welcomeOff            = new Image();
    welcomeOff.src        = "images/welcome.jpg";
    welcomeOn          = new Image();
    welcomeOn.src      = "images/welcomeOn.jpg";
    clientsOff            = new Image();
    clientsOff.src        = "images/clients.jpg";
    clientsOn          = new Image();
    clientsOn.src      = "images/clientsOn.jpg";    
    productsOff           = new Image();
    productsOff.src       = "images/products.jpg";
    productsOn         = new Image();
    productsOn.src     = "images/productsOn.jpg"; 
    contactOff            = new Image();
    contactOff.src        = "images/contact.jpg";
    contactOn          = new Image();
    contactOn.src      = "images/contactOn.jpg";
    clients1Off            = new Image();
    clients1Off.src        = "images/clients1.jpg";
    clients1On          = new Image();
    clients1On.src      = "images/clients1On.jpg";


  }   
  function buttonOn( buttonName )
  {
    if (document.images) {
      document[ buttonName ].src = eval( buttonName + "On.src" );
    }
  }
  function buttonOff ( buttonName )
  {
    if (document.images) {
      document[ buttonName ].src = eval( buttonName + "Off.src" );
    }
  }