var currentLayer;
var menuTimeout;
var itemTimeout;

if (document.layers || document.all || document.getElementById) {
    //menuabout
    menuImgabout_1On = new Image();
    menuImgabout_3On = new Image();
    menuImgabout_1On.src = "/images/header/nav/subnav/about_generic_drugs_on.gif";
    menuImgabout_3On.src = "/images/header/nav/subnav/awards_on.gif";

    menuImgabout_1Off = new Image();
    menuImgabout_3Off = new Image();
    menuImgabout_4Off = new Image();
    menuImgabout_1Off.src = "/images/header/nav/subnav/about_generic_drugs_off.gif";
    menuImgabout_3Off.src = "/images/header/nav/subnav/awards_off.gif";


    //menuinfo
    menuImginfo_1On = new Image();
    menuImginfo_2On = new Image();
    menuImginfo_3On = new Image();
    menuImginfo_4On = new Image();
    menuImginfo_1On.src = "/images/header/nav/subnav/info_generics_on.gif";
    menuImginfo_2On.src = "/images/header/nav/subnav/info_links_on.gif";
    menuImginfo_3On.src = "/images/header/nav/subnav/info_literature_on.gif";
    menuImginfo_4On.src = "/images/header/nav/subnav/supplier_on.gif";

    menuImginfo_1Off = new Image();
    menuImginfo_2Off = new Image();
    menuImginfo_3Off = new Image();
    menuImginfo_4Off = new Image();
    menuImginfo_1Off.src = "/images/header/nav/subnav/info_generics.gif";
    menuImginfo_2Off.src = "/images/header/nav/subnav/info_links.gif";
    menuImginfo_3Off.src = "/images/header/nav/subnav/info_literature.gif";
    menuImginfo_4Off.src = "/images/header/nav/subnav/supplier_off.gif";



    //menuproducts
    menuImgproducts_1On = new Image();
    menuImgproducts_2On = new Image();
    menuImgproducts_3On = new Image();
    menuImgproducts_4On = new Image();
    menuImgproducts_5On = new Image();
    menuImgproducts_6On = new Image();
    menuImgproducts_1On.src = "/images/header/nav/subnav/products_new_product_on.gif";
    menuImgproducts_2On.src = "/images/header/nav/subnav/products_consumer_on.gif";
    menuImgproducts_3On.src = "/images/header/nav/subnav/products_drug_on.gif";
    menuImgproducts_4On.src = "/images/header/nav/subnav/supplier_on.gif";
    menuImgproducts_5On.src = "/images/header/nav/subnav/nsaid_pati_med_guide_on.gif";
    menuImgproducts_6On.src = "/images/header/nav/subnav/antidep_med_guide_on.gif";

    menuImgproducts_1Off = new Image();
    menuImgproducts_2Off = new Image();
    menuImgproducts_3Off = new Image();
    menuImgproducts_4Off = new Image();
    menuImgproducts_5Off = new Image();
    menuImgproducts_6Off = new Image();
    menuImgproducts_1Off.src = "/images/header/nav/subnav/products_new_product.gif";
    menuImgproducts_2Off.src = "/images/header/nav/subnav/products_consumer.gif";
    menuImgproducts_3Off.src = "/images/header/nav/subnav/products_drug.gif";
    menuImgproducts_4Off.src = "/images/header/nav/subnav/supplier_off.gif";
    menuImgproducts_5Off.src = "/images/header/nav/subnav/nsaid_pati_med_guide_off.gif";
    menuImgproducts_6Off.src = "/images/header/nav/subnav/antidep_med_guide_off.gif";


    //menuprofessionals
    menuImgprofessionals_1On = new Image();
    menuImgprofessionals_2On = new Image();
    menuImgprofessionals_3On = new Image();
    menuImgprofessionals_4On = new Image();
    menuImgprofessionals_5On = new Image();
    menuImgprofessionals_6On = new Image();
    menuImgprofessionals_7On = new Image();
    menuImgprofessionals_8On = new Image();
    menuImgprofessionals_1On.src = "/images/header/nav/subnav/professional_exchange_on.gif";
    menuImgprofessionals_2On.src = "/images/header/nav/subnav/professional_guide_on.gif";
    menuImgprofessionals_3On.src = "/images/header/nav/subnav/gbr_on.gif";
    menuImgprofessionals_4On.src = "/images/header/nav/subnav/professional_pharmacy_on.gif";
    menuImgprofessionals_5On.src = "/images/header/nav/subnav/professional_ce_on.gif";
    menuImgprofessionals_6On.src = "/images/header/nav/subnav/professional_award_on.gif";
    menuImgprofessionals_7On.src = "/images/header/nav/subnav/professional_contact_on.gif";
    menuImgprofessionals_8On.src = "/images/header/nav/subnav/products_new_product_on.gif";


    menuImgprofessionals_1Off = new Image();
    menuImgprofessionals_2Off = new Image();
    menuImgprofessionals_3Off = new Image();
    menuImgprofessionals_4Off = new Image();
    menuImgprofessionals_5Off = new Image();
    menuImgprofessionals_6Off = new Image();
    menuImgprofessionals_7Off = new Image();
    menuImgprofessionals_8Off = new Image();
    menuImgprofessionals_1Off.src = "/images/header/nav/subnav/professional_exchange.gif";
    menuImgprofessionals_2Off.src = "/images/header/nav/subnav/professional_guide.gif";
    menuImgprofessionals_3Off.src = "/images/header/nav/subnav/gbr_off.gif";
    menuImgprofessionals_4Off.src = "/images/header/nav/subnav/professional_pharmacy.gif";
    menuImgprofessionals_5Off.src = "/images/header/nav/subnav/professional_ce.gif";
    menuImgprofessionals_6Off.src = "/images/header/nav/subnav/professional_award.gif";
    menuImgprofessionals_7Off.src = "/images/header/nav/subnav/professional_contact.gif";
    menuImgprofessionals_8Off.src = "/images/header/nav/subnav/products_new_product.gif";

}

function showLayer(div) {
   if (document.layers) {
      eval('document.layers["' + div + '"].visibility = "visible";');
   } else if (document.all) {
      document.all[div].style.visibility = "visible";
   } else if (document.getElementById) {
      document.getElementById(div).style.visibility = "visible";
   }
}

function hideLayer(div) {
   if (document.layers) {
      eval('document.layers["' + div + '"].visibility = "hidden";');
   } else if (document.all) {
      document.all[div].style.visibility = "hidden";
   } else if (document.getElementById) {
      document.getElementById(div).style.visibility = "hidden";
   }
}

function menuOn(div) {
   if (document.layers || document.all || document.getElementById) {
      if (currentLayer) {
         if (menuTimeout) clearTimeout(menuTimeout);
         if (itemTimeout) clearTimeout(itemTimeout);
         hideLayer(currentLayer);
      }
      showLayer(div);
      currentLayer = div;
   } else {
      swapImage('menu',div);
   }
}

function menuOff(div) {
   if (document.layers || document.all || document.getElementById) {
      menuTimeout = setTimeout('hideLayer(currentLayer)',600);
   } else {
      swapImage('menu','dots');
   }
}

function keepAlive(div) {
   if (menuTimeout) clearTimeout(menuTimeout);
   if (itemTimeout) clearTimeout(itemTimeout);
   showLayer(div);
}

function killIt(div) {
   itemTimeout = setTimeout('hideLayer(currentLayer)',600);
}