var currentLayer;
var menuTimeout;
var itemTimeout;

if (document.layers || document.all || document.getElementById) {
   //menuabout
   menuImgabout_1On = new Image();
   menuImgabout_2On = new Image();
   menuImgabout_3On = new Image();
   menuImgabout_4On = new Image();
   menuImgabout_1On.src = "images/header/nav/subnav/about_profile_on.gif";
   menuImgabout_2On.src = "images/header/nav/subnav/about_history_on.gif";
   menuImgabout_3On.src = "images/header/nav/subnav/about_virtualtour_on.gif";
   menuImgabout_4On.src = "images/header/nav/subnav/about_merck_on.gif";

   menuImgabout_1Off = new Image();
   menuImgabout_2Off = new Image();
   menuImgabout_3Off = new Image();
   menuImgabout_4Off = new Image();
   menuImgabout_1Off.src = "images/header/nav/subnav/about_profile.gif";
   menuImgabout_2Off.src = "images/header/nav/subnav/about_history.gif";
   menuImgabout_3Off.src = "images/header/nav/subnav/about_virtualtour.gif";
   menuImgabout_4Off.src = "images/header/nav/subnav/about_merck.gif";
   
   //menubus
   menuImgbus_1On = new Image();
   menuImgbus_2On = new Image();
   menuImgbus_3On = new Image();
   menuImgbus_4On = new Image();
   menuImgbus_5On = new Image();
   menuImgbus_6On = new Image();
   menuImgbus_1On.src = "images/header/nav/subnav/north_america_on.gif";
   menuImgbus_2On.src = "images/header/nav/subnav/emea_on.gif";
   menuImgbus_3On.src = "images/header/nav/subnav/apac_on.gif";
   menuImgbus_4On.src = "images/header/nav/subnav/specialty_on.gif";
   menuImgbus_5On.src = "images/header/nav/subnav/matrix_on.gif";
   menuImgbus_6On.src = "images/header/nav/subnav/other_on.gif";

   menuImgbus_1Off = new Image();
   menuImgbus_2Off = new Image();
   menuImgbus_3Off = new Image();
   menuImgbus_4Off = new Image();
   menuImgbus_5Off = new Image();
   menuImgbus_6Off = new Image();
   menuImgbus_1Off.src = "images/header/nav/subnav/north_america.gif";
   menuImgbus_2Off.src = "images/header/nav/subnav/emea-2.gif";
   menuImgbus_3Off.src = "images/header/nav/subnav/apac-2.gif";
   menuImgbus_4Off.src = "images/header/nav/subnav/specialty.gif";
   menuImgbus_5Off.src = "images/header/nav/subnav/matrix.gif";
   menuImgbus_6Off.src = "images/header/nav/subnav/other.gif";
   
   
    //menuinvestor
   menuImginvestor_1On = new Image();
   menuImginvestor_2On = new Image();
   menuImginvestor_3On = new Image();
   menuImginvestor_4On = new Image();
   menuImginvestor_5On = new Image();
   menuImginvestor_6On = new Image();
   menuImginvestor_7On = new Image();
   menuImginvestor_8On = new Image();
   menuImginvestor_9On = new Image();
   menuImginvestor_10On = new Image();
   menuImginvestor_11On = new Image();
   menuImginvestor_1On.src = "images/header/nav/subnav/investor_overview_on.gif";
   menuImginvestor_2On.src = "images/header/nav/subnav/investor_press_on.gif";
   menuImginvestor_3On.src = "images/header/nav/subnav/09-09-25_events_on.gif";
   menuImginvestor_4On.src = "images/header/nav/subnav/09-09-25_governance_on.gif";
   menuImginvestor_5On.src = "images/header/nav/subnav/09-09-25_financial_on.gif";
   menuImginvestor_6On.src = "images/header/nav/subnav/09-09-25_stock_on.gif";
   menuImginvestor_7On.src = "images/header/nav/subnav/09-09-25_faq_on.gif";
   menuImginvestor_8On.src = "images/header/nav/subnav/09-09-25_contact_on.gif";
   menuImginvestor_9On.src = "images/header/nav/subnav/09-09-25_printed_on.gif";
   menuImginvestor_10On.src = "images/header/nav/subnav/investor_contact_on.gif";
   menuImginvestor_11On.src = "images/header/nav/subnav/investor_packet_on.gif";
   
   menuImginvestor_1Off = new Image();
   menuImginvestor_2Off = new Image();
   menuImginvestor_3Off = new Image();
   menuImginvestor_4Off = new Image();
   menuImginvestor_5Off = new Image();
   menuImginvestor_6Off = new Image();
   menuImginvestor_7Off = new Image();
   menuImginvestor_8Off = new Image();
   menuImginvestor_9Off = new Image();
   menuImginvestor_10Off = new Image();
   menuImginvestor_11Off = new Image();
   menuImginvestor_1Off.src = "images/header/nav/subnav/investor_overview.gif";
   menuImginvestor_2Off.src = "images/header/nav/subnav/investor_press.gif";
   menuImginvestor_3Off.src = "images/header/nav/subnav/09-09-25_events_off.gif";
   menuImginvestor_4Off.src = "images/header/nav/subnav/09-09-25_governance_off.gif";
   menuImginvestor_5Off.src = "images/header/nav/subnav/09-09-25_financial_off.gif";
   menuImginvestor_6Off.src = "images/header/nav/subnav/09-09-25_stock_off.gif";
   menuImginvestor_7Off.src = "images/header/nav/subnav/09-09-25_faq_off.gif";
   menuImginvestor_8Off.src = "images/header/nav/subnav/09-09-25_contact_off.gif";
   menuImginvestor_9Off.src = "images/header/nav/subnav/09-09-25_printed_off.gif";
   menuImginvestor_10Off.src = "images/header/nav/subnav/investor_contact.gif";
   menuImginvestor_11Off.src = "images/header/nav/subnav/investor_packet.gif";



 //menuCorporategovernance
   menuImggovernance_2On = new Image();
   menuImggovernance_3On = new Image();
   menuImggovernance_4On = new Image();
   menuImggovernance_5On = new Image();
   menuImggovernance_6On = new Image();
   menuImggovernance_7On = new Image();
   menuImggovernance_8On = new Image();
   menuImggovernance_9On = new Image();
   menuImggovernance_10On = new Image();
   menuImggovernance_11On = new Image();
   menuImggovernance_12On = new Image();
   menuImggovernance_13On = new Image();
   menuImggovernance_2On.src = "images/header/nav/subnav/gov_board_on.gif";
   menuImggovernance_3On.src = "images/header/nav/subnav/gov_global_on.gif";
   menuImggovernance_4On.src = "images/header/nav/subnav/gov_charters_on.gif";
   menuImggovernance_5On.src = "images/header/nav/subnav/gov_committee_on.gif";
   menuImggovernance_6On.src = "images/header/nav/subnav/gov_bylaws_on.gif";
   menuImggovernance_7On.src = "images/header/nav/subnav/gov_principles_on.gif";
   menuImggovernance_8On.src = "images/header/nav/subnav/gov_articles_on.gif";
   menuImggovernance_9On.src = "images/header/nav/subnav/gov_conduct_on.gif";
   menuImggovernance_10On.src = "images/header/nav/subnav/gov_ethicscode_on.gif";
   menuImggovernance_11On.src = "images/header/nav/subnav/gov_sec_on.gif";
   menuImggovernance_12On.src = "images/header/nav/subnav/gov_cali_on.gif";
   menuImggovernance_13On.src = "images/header/nav/subnav/supplier_info_on.gif";

   

   menuImggovernance_2Off = new Image();
   menuImggovernance_3Off = new Image();
   menuImggovernance_4Off = new Image();
   menuImggovernance_5Off = new Image();
   menuImggovernance_6Off = new Image();
   menuImggovernance_7Off = new Image();
   menuImggovernance_8Off = new Image();
   menuImggovernance_9Off = new Image();
   menuImggovernance_10Off = new Image();
   menuImggovernance_11Off = new Image();
   menuImggovernance_12Off = new Image();
   menuImggovernance_13Off = new Image();
   menuImggovernance_2Off.src = "images/header/nav/subnav/gov_board.gif";
   menuImggovernance_3Off.src = "images/header/nav/subnav/gov_global.gif";
   menuImggovernance_4Off.src = "images/header/nav/subnav/gov_charters.gif";
   menuImggovernance_5Off.src = "images/header/nav/subnav/gov_committee.gif";
   menuImggovernance_6Off.src = "images/header/nav/subnav/gov_bylaws.gif";
   menuImggovernance_7Off.src = "images/header/nav/subnav/gov_principles.gif";
   menuImggovernance_8Off.src = "images/header/nav/subnav/gov_articles.gif";
   menuImggovernance_9Off.src = "images/header/nav/subnav/gov_conduct.gif";
   menuImggovernance_10Off.src = "images/header/nav/subnav/gov_ethicscode.gif";
   menuImggovernance_11Off.src = "images/header/nav/subnav/gov_sec.gif";
   menuImggovernance_12Off.src = "images/header/nav/subnav/gov_cali.gif";
   menuImggovernance_13Off.src = "images/header/nav/subnav/supplier_info.gif";

   
   //menuproducts
   menuImgproducts_1On = new Image();
   menuImgproducts_2On = new Image();
   menuImgproducts_3On = new Image();
   menuImgproducts_1On.src = "images/header/nav/subnav/09-09-28_my_pharms_on.gif";
   menuImgproducts_2On.src = "images/header/nav/subnav/09-09-28_my_tech_on.gif";
   menuImgproducts_3On.src = "images/header/nav/subnav/09-09-28_udl_on.gif";

   menuImgproducts_1Off = new Image();
   menuImgproducts_2Off = new Image();
   menuImgproducts_3Off = new Image();
   menuImgproducts_1Off.src = "images/header/nav/subnav/09-09-28_my_pharms_off.gif";
   menuImgproducts_2Off.src = "images/header/nav/subnav/09-09-28_my_tech_off.gif";
   menuImgproducts_3Off.src = "images/header/nav/subnav/09-09-28_udl_off.gif";
   
   //menumediaroom
   menuImgmedia_1On = new Image();
   menuImgmedia_2On = new Image();
   menuImgmedia_3On = new Image();
   menuImgmedia_4On = new Image();
   
   menuImgmedia_1On.src = "images/header/nav/subnav/about_profile_on.gif"
   menuImgmedia_2On.src = "images/header/nav/subnav/09-09-28_news_on.gif"
   menuImgmedia_3On.src = "images/header/nav/subnav/about_history_on.gif"
   menuImgmedia_4On.src = "images/header/nav/subnav/about_virtualtour_on.gif"
	
   menuImgmedia_1Off = new Image();
   menuImgmedia_2Off = new Image();
   menuImgmedia_3Off = new Image();
   menuImgmedia_4Off = new Image();
   
   menuImgmedia_1Off.src = "images/header/nav/subnav/about_profile.gif";
   menuImgmedia_2Off.src = "images/header/nav/subnav/09-09-28_news_off.gif";
   menuImgmedia_3Off.src = "images/header/nav/subnav/about_history.gif";
   menuImgmedia_4Off.src = "images/header/nav/subnav/about_virtualtour.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);
}