if (document.images) {
  image1on = new Image();
  image1on.src = "images/home_navon_02.gif";
  image2on = new Image();
  image2on.src = "images/home_navon_03.gif";
  image3on = new Image();
  image3on.src = "images/home_navon_04.gif";
  image4on = new Image();
  image4on.src = "images/home_navon_05.gif";
  image5on = new Image();
  image5on.src = "images/home_navon_06.gif";
  image6on = new Image();
  image6on.src = "images/home_navon_07.gif";
  image7on = new Image();
  image7on.src = "images/home_navon_08.gif";
  image8on = new Image();
  image8on.src = "images/home_navon_09.gif";
  image1off = new Image();
  image1off.src = "images/home_navoff_02.gif";
  image2off = new Image();
  image2off.src = "images/home_navoff_03.gif";
  image3off = new Image();
  image3off.src = "images/home_navoff_04.gif";
  image4off = new Image();
  image4off.src = "images/home_navoff_05.gif";
  image5off = new Image();
  image5off.src = "images/home_navoff_06.gif";
  image6off = new Image();
  image6off.src = "images/home_navoff_07.gif";
  image7off = new Image();
  image7off.src = "images/home_navoff_08.gif";
  image8off = new Image();
  image8off.src = "images/home_navoff_09.gif";
}

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