function changeImages() {
  if (document.images) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}


function preloadImages() {
if (document.images)
    {
      preload_image_object = new Image();
      // set image url
      image_url = new Array();
      image_url[0] = "images/index_02-index_Company_over.gif";
      image_url[1] = "images/index_04-index_Company_over.gif";
      image_url[2] = "images/index_04-index_Get-a-Quote_.gif";
      image_url[3] = "images/index_04-index_Packaging-Fa.gif";
      image_url[4] = "images/index_04-index_Packaging-Se.gif";
      image_url[5] = "images/index_04-index_Product-Qual.gif";
      image_url[6] = "images/index_04-index_Program-Feat.gif";

       var i = 0;
       for(i=0; i<=6; i++) 
         preload_image_object.src = image_url[i];
    }


}