<!-- // hide script from old browsers

// define images

if(document.images) {

  image01 = new Image;
  image02 = new Image;
  image11 = new Image;
  image12 = new Image;
  image21 = new Image;
  image22 = new Image;
  image31 = new Image;
  image32 = new Image;
  image41 = new Image;
  image42 = new Image;

// source images

  image01.src = "../images/bt_ProductCatalog-Off.gif";
  image02.src = "../images/bt_ProductCatalog-On.gif";
  image11.src = "../images/bt_WhereToBuy-Off.gif";
  image12.src = "../images/bt_WhereToBuy-On.gif";
  image21.src = "../images/bt_ContactUs-Off.gif";
  image22.src = "../images/bt_ContactUs-On.gif";
  image31.src = "../images/bt_CompanyHistory-Off.gif";
  image32.src = "../images/bt_CompanyHistory-On.gif";
  image41.src = "../images/bt_IQR-Off.gif";
  image42.src = "../images/bt_IQR-On.gif";
}

/// MouseOver Function

function swapOn(imgLocation) {
  if(document.images) {
    document.images[imgLocation].src = eval(imgLocation + "2.src");
  }
}

// MouseOut Function

function swapOff(imgLocation) {
  if(document.images) {
    document.images[imgLocation].src = eval(imgLocation + "1.src");
  }
}

// end hiding script -->