if (document.images) {
   aboutOn = new Image();
   aboutOn.src = "/images/header/nav/about_us_on.gif";
   infoOn = new Image();
   infoOn.src = "/images/header/nav/info_on.gif";
   burnOn = new Image();
   burnOn.src = "/images/header/nav/burn_on.gif";
   productsOn = new Image();
   productsOn.src = "/images/header/nav/products_on.gif";
   woundOn = new Image();
   woundOn.src = "/images/header/nav/wound_on.gif";
   packagingOn = new Image();
   packagingOn.src = "/images/header/nav/packaging_on.gif";
   
   aboutOff = new Image();
   aboutOff.src = "/images/header/nav/about.gif";
   infoOff = new Image();
   infoOff.src = "/images/header/nav/info.gif";
   burnOff = new Image();
   burnOff.src = "/images/header/nav/burn.gif";
   productsOff = new Image();
   productsOff.src = "/images/header/nav/products.gif";
   woundOff = new Image();
   woundOff.src = "/images/header/nav/wound.gif";
   packagingOff = new Image();
   packagingOff.src = "/images/header/nav/packaging.gif";
}


function swapImage(imgName,newImage) {
   if (document.images) {
   document.status = imgName + " :" + newImage
      eval('document.' + imgName + '.src = ' + newImage + '.src');
   }
}