if (document.images) {

	homeon = new Image(144,20);
	homeon.src = "images/btn_home_on.gif";
	homeoff = new Image(144,20);
	homeoff.src = "images/btn_home_off.gif";

	abouton = new Image(144,20);
	abouton.src = "images/btn_about_on.gif";
	aboutoff = new Image(144,20);
	aboutoff.src = "images/btn_about_off.gif";

	contacton = new Image(144,20);
	contacton.src = "images/btn_contact_on.gif";
	contactoff = new Image(144,20);
	contactoff.src = "images/btn_contact_off.gif";

	donatenowon = new Image(144,20);
	donatenowon.src = "images/btn_donatenow_on.gif";
	donatenowoff = new Image(144,20);
	donatenowoff.src = "images/btn_donatenow_off.gif";

  donationson = new Image(144,20);
  donationson.src = "images/btn_donations_on.gif";
  donationsoff = new Image(144,20);
  donationsoff.src = "images/btn_donations_off.gif";

  guestbookon = new Image(144,20);
  guestbookon.src = "images/btn_guestbook_on.gif";
  guestbookoff = new Image(144,20);
  guestbookoff.src = "images/btn_guestbook_off.gif";

	howtoon = new Image(144,20);
	howtoon.src = "images/btn_howto_on.gif";
	howtooff = new Image(144,20);
	howtooff.src = "images/btn_howto_off.gif";

	peoplewhoon = new Image(144,20);
	peoplewhoon.src = "images/btn_peoplewho_on.gif";
	peoplewhooff = new Image(144,20);
	peoplewhooff.src = "images/btn_peoplewho_off.gif";

	volunteerson = new Image(144,20);
	volunteerson.src = "images/btn_volunteers_on.gif";
	volunteersoff = new Image(144,20);
	volunteersoff.src = "images/btn_volunteers_off.gif";	

	specialeventson = new Image(144,20);
	specialeventson.src = "images/btn_specialevents_on.gif";
	specialeventsoff = new Image(144,20);
	specialeventsoff.src = "images/btn_specialevents_off.gif";

 }

function On(imgName) {
      if (document.images)
          document.images[imgName].src = eval(imgName + "on.src");
}

function Off(imgName) {
      if (document.images)
             document.images[imgName].src = eval(imgName + "off.src");
}