if (document.images) {
  var buttonsURI = "http://www.feedcenter.org/partnerregions/art/"

  butt_dvr_selected = new Image();
  butt_dvr_selected.src = buttonsURI + "butt_dvr_selected.gif";
  butt_dvr = new Image();
  butt_dvr.src = buttonsURI + "butt_dvr.gif";
  
  butt_usa_selected = new Image();
  butt_usa_selected.src = buttonsURI + "butt_usa_selected.gif";
  butt_usa = new Image();
  butt_usa.src = buttonsURI + "butt_usa.gif";
  
  butt_urs_selected = new Image();
  butt_urs_selected.src = buttonsURI + "butt_urs_selected.gif";
  butt_urs = new Image();
  butt_urs.src = buttonsURI + "butt_urs.gif";

  butt_econ_selected = new Image();
  butt_econ_selected.src = buttonsURI + "butt_econ_selected.gif";
  butt_econ = new Image();
  butt_econ.src = buttonsURI + "butt_econ.gif";

  butt_publ_selected = new Image();
  butt_publ_selected.src = buttonsURI + "butt_publ_selected.gif";
  butt_publ = new Image();
  butt_publ.src = buttonsURI + "butt_publ.gif";

  butt_map_selected = new Image();
  butt_map_selected.src = buttonsURI + "butt_map_selected.gif";
  butt_map = new Image();
  butt_map.src = buttonsURI + "butt_map.gif";

  butt_find_selected = new Image();
  butt_find_selected.src = buttonsURI + "butt_find_selected.gif";
  butt_find = new Image();
  butt_find.src = buttonsURI + "butt_find.gif";

  butt_guest_selected = new Image();
  butt_guest_selected.src = buttonsURI + "butt_guest_selected.gif";
  butt_guest = new Image();
  butt_guest.src = buttonsURI + "butt_guest.gif";

  butt_dvcr_selected = new Image();
  butt_dvcr_selected.src = buttonsURI + "butt_dvcr_selected.gif";
  butt_dvcr = new Image();
  butt_dvcr.src = buttonsURI + "butt_dvcr.gif";

  butt_home_selected = new Image();
  butt_home_selected.src = buttonsURI + "butt_home_selected.gif";
  butt_home = new Image();
  butt_home.src = buttonsURI + "butt_home.gif";

  butt_pod_selected = new Image();
  butt_pod_selected.src = buttonsURI + "butt_pod_selected.gif";
  butt_pod = new Image();
  butt_pod.src = buttonsURI + "butt_pod.gif";
 
  butt_mail_selected = new Image();
  butt_mail_selected.src = buttonsURI + "butt_mail_selected.gif";
  butt_mail = new Image();
  butt_mail.src = buttonsURI + "butt_mail.gif";

  butt_snews_selected = new Image();
  butt_snews_selected.src = buttonsURI + "butt_snews_selected.gif";
  butt_snews = new Image();
  butt_snews.src = buttonsURI + "butt_snews.gif";

  butt_c_reg_selected = new Image();
  butt_c_reg_selected.src = buttonsURI + "butt_c_reg_selected.gif";
  butt_c_reg = new Image();
  butt_c_reg.src = buttonsURI + "butt_c_reg.gif";

  
  butt2_obr_selected = new Image();
  butt2_obr_selected.src = buttonsURI + "butt2_obr_selected.gif";
  butt2_obr = new Image();
  butt2_obr.src = buttonsURI + "butt2_obr.gif";

  butt2_states_selected = new Image();
  butt2_states_selected.src = buttonsURI + "butt2_states_selected.gif";
  butt2_states = new Image();
  butt2_states.src = buttonsURI + "butt2_states.gif";
  
  
  butt2_reg_selected = new Image();
  butt2_reg_selected.src = buttonsURI + "butt2_reg_selected.gif";
  butt2_reg = new Image();
  butt2_reg.src = buttonsURI + "butt2_reg.gif";

  butt2_macro_selected = new Image();
  butt2_macro_selected.src = buttonsURI + "butt2_macro_selected.gif";
  butt2_macro = new Image();
  butt2_macro.src = buttonsURI + "butt2_macro.gif";

  butt2_commer_selected = new Image();
  butt2_commer_selected.src = buttonsURI + "butt2_commer_selected.gif";
  butt2_commer = new Image();
  butt2_commer.src = buttonsURI + "butt2_commer.gif";

  butt2_invest_selected = new Image();
  butt2_invest_selected.src = buttonsURI + "butt2_invest_selected.gif";
  butt2_invest = new Image();
  butt2_invest.src = buttonsURI + "butt2_invest.gif";

  butt2_constit_selected = new Image();
  butt2_constit_selected.src = buttonsURI + "butt2_constit_selected.gif";
  butt2_constit = new Image();
  butt2_constit.src = buttonsURI + "butt2_constit.gif";

  butt2_scient_selected = new Image();
  butt2_scient_selected.src = buttonsURI + "butt2_scient_selected.gif";
  butt2_scient = new Image();
  butt2_scient.src = buttonsURI + "butt2_scient.gif";
}

function turnOn(imageName)
{
   if (document.images)
   {
      document[imageName].src = eval(imageName+"_selected.src");
   }
}

function turnOff(imageName) 
{
   if (document.images)
   {
      document[imageName].src = eval(imageName+".src");
   }
}