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if (document.images) {

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  image1on.src = "buthome2.jpg";

  image2on = new Image();
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  image3on = new Image();
  image3on.src = "butservices2.jpg";

  image4on = new Image();
  image4on.src = "butcase2.jpg";

  image5on = new Image();
  image5on.src = "butcontact2.jpg";


  image1off = new Image();
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  image2off.src = "butabout.jpg";

  image3off = new Image();
  image3off.src = "butservices.jpg";

  image4off = new Image();
  image4off.src = "butcase.jpg";

  image5off = new Image();
  image5off.src = "butcontact.jpg";


}


function turnOn(imageName) {

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}


function turnOff(imageName) {

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}


// -->