google.load("earth", "1");
      google.load("maps", "2.99"); // For JS geocoder

	var ge = null;
	
	function init() {
	  google.earth.createInstance("map3d", initCallback, failureCallback);
        geocoder = new GClientGeocoder();

	}
	
	function initCallback(object) {
	  ge = object;
	  ge.getWindow().setVisibility(true);
	  ge.getNavigationControl().setVisibility(ge.VISIBILITY_SHOW);
	  ge.getOptions().setStatusBarVisibility(true);
        google.earth.addEventListener(ge.getWindow(), "mousedown", mousedown_eventListener);

        windfarms = getNL('http://www.fintree.com/demodata/US_Windfarms.kmz');
	  windresource = getNL('http://www.fintree.com/demodata/US_WindResource_Map.kmz');
        airports1 = getNL('http://www.fintree.com/demodata/us_airports1.kmz');
        airports1.setVisibility(false);
	  airports2 = getNL('http://www.fintree.com/demodata/us_airports2.kmz');
        airports2.setVisibility(false);
	  airports3 = getNL('http://www.fintree.com/demodata/us_airports3.kmz');
        airports3.setVisibility(false);
	  airports4 = getNL('http://www.fintree.com/demodata/us_airports4.kmz');
        airports4.setVisibility(false);
	  airports5 = getNL('http://www.fintree.com/demodata/us_airports5.kmz');
        airports5.setVisibility(false);
	  airports6 = getNL('http://www.fintree.com/demodata/us_airports6.kmz');
        airports6.setVisibility(false);
	  airports7 = getNL('http://www.fintree.com/demodata/us_airports7.kmz');
        airports7.setVisibility(false);
	  radar_10mi = getNL('http://www.fintree.com/demodata/radar_10mi.kmz');
           radar_10mi.setVisibility(false);
	  radar_large = getNL('http://www.fintree.com/demodata/radar_large.kmz');
           radar_large.setVisibility(false);
	  radar_towers = getNL('http://www.fintree.com/demodata/radar_towers.kmz');
           radar_towers.setVisibility(false);
        met = getNL('http://www.fintree.com/demodata/met.kmz');
           met.setVisibility(false);
	  highres_ma = getNL('http://www.fintree.com/demodata/Wind_Map_MA.kmz');
	  highres_ma.setVisibility(false);
        highres_vt = getNL('http://www.fintree.com/demodata/Wind_Map_VT.kmz');
	  highres_vt.setVisibility(false);
        highres_akn1 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_North1.kmz');
	  highres_akn1.setVisibility(false);
 	  highres_akn2 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_North2.kmz');
	  highres_akn2.setVisibility(false);
        highres_akn3 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_North3.kmz');
	  highres_akn3.setVisibility(false);
        highres_akm1 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_Middle1.kmz');
	  highres_akm1.setVisibility(false);
        highres_akm2 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_Middle2.kmz');
	  highres_akm2.setVisibility(false);
        highres_akm3 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_Middle3.kmz');
	  highres_akm3.setVisibility(false);
        highres_aks1 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_South1.kmz');
	  highres_aks1.setVisibility(false);
        highres_aks2 = getNL('http://www.fintree.com/demodata/Wind_Map_AK_South2.kmz');
	  highres_aks2.setVisibility(false);
        highres_ar = getNL('http://www.fintree.com/demodata/Wind_Map_AR.kmz');
	  highres_ar.setVisibility(false);
	  highres_az = getNL('http://www.fintree.com/demodata/Wind_Map_AZ.kmz');
	  highres_az.setVisibility(false);
	  highres_co1 = getNL('http://www.fintree.com/demodata/Wind_Map_CO1.kmz');
	  highres_co1.setVisibility(false);
	  highres_co2 = getNL('http://www.fintree.com/demodata/Wind_Map_CO2.kmz');
	  highres_co2.setVisibility(false);
	  highres_co3 = getNL('http://www.fintree.com/demodata/Wind_Map_CO3.kmz');
	  highres_co3.setVisibility(false);
	  highres_co4 = getNL('http://www.fintree.com/demodata/Wind_Map_CO4.kmz');
	  highres_co4.setVisibility(false);
	  highres_co5 = getNL('http://www.fintree.com/demodata/Wind_Map_CO5.kmz');
	  highres_co5.setVisibility(false);
	  highres_ct = getNL('http://www.fintree.com/demodata/Wind_Map_CT.kmz');
	  highres_ct.setVisibility(false);
	  highres_men = getNL('http://www.fintree.com/demodata/Wind_Map_ME_North.kmz');
	  highres_men.setVisibility(false);
	  highres_mes = getNL('http://www.fintree.com/demodata/Wind_Map_ME_South.kmz');
	  highres_mes.setVisibility(false);
        highres_nh = getNL('http://www.fintree.com/demodata/Wind_Map_NH.kmz');
	  highres_nh.setVisibility(false);
        highres_ri = getNL('http://www.fintree.com/demodata/Wind_Map_RI.kmz');
	  highres_ri.setVisibility(false);
	  highres_hi = getNL('http://www.fintree.com/demodata/Wind_Map_HI.kmz');
	  highres_hi.setVisibility(false);
	  highres_il = getNL('http://www.fintree.com/demodata/Wind_Map_IL.kmz');
	  highres_il.setVisibility(false);
	  highres_in = getNL('http://www.fintree.com/demodata/Wind_Map_IN.kmz');
	  highres_in.setVisibility(false);
	  highres_mi1 = getNL('http://www.fintree.com/demodata/Wind_Map_MI1.kmz');
	  highres_mi1.setVisibility(false);
	  highres_mi2 = getNL('http://www.fintree.com/demodata/Wind_Map_MI2.kmz');
	  highres_mi2.setVisibility(false);
	  highres_mi3 = getNL('http://www.fintree.com/demodata/Wind_Map_MI3.kmz');
	  highres_mi3.setVisibility(false);
	  highres_mi4 = getNL('http://www.fintree.com/demodata/Wind_Map_MI4.kmz');
	  highres_mi4.setVisibility(false);
	  highres_mid1 = getNL('http://www.fintree.com/demodata/Wind_Map_MidAtl1.kmz');
	  highres_mid1.setVisibility(false);
	  highres_mid2 = getNL('http://www.fintree.com/demodata/Wind_Map_MidAtl2.kmz');
	  highres_mid2.setVisibility(false);
	  highres_mid3 = getNL('http://www.fintree.com/demodata/Wind_Map_MidAtl3.kmz');
	  highres_mid3.setVisibility(false);
	  highres_mid4 = getNL('http://www.fintree.com/demodata/Wind_Map_MidAtl4.kmz');
	  highres_mid4.setVisibility(false);
	  highres_mid5 = getNL('http://www.fintree.com/demodata/Wind_Map_MidAtl5.kmz');
	  highres_mid5.setVisibility(false);
	  highres_midp = getNL('http://www.fintree.com/demodata/Wind_Map_MidAtlPoor.kmz');
	  highres_midp.setVisibility(false);
          highres_mo = getNL('http://www.fintree.com/demodata/Wind_Map_MO.kmz');
	  highres_mo.setVisibility(false);
	  highres_ndsd = getNL('http://www.fintree.com/demodata/Wind_Map_Dakotas.kmz');
	  highres_ndsd.setVisibility(false);
          highres_ne = getNL('http://www.fintree.com/demodata/Wind_Map_NE.kmz');
	  highres_ne.setVisibility(false);
	  highres_nv = getNL('http://www.fintree.com/demodata/Wind_Map_NV.kmz');
	  highres_nv.setVisibility(false);
	  highres_oh = getNL('http://www.fintree.com/demodata/Wind_Map_OH.kmz');
	  highres_oh.setVisibility(false);
        highres_ut = getNL('http://www.fintree.com/demodata/Wind_Map_UT.kmz');
	  highres_ut.setVisibility(false);
        highres_pacn = getNL('http://www.fintree.com/demodata/Wind_Map_PacNW_North.kmz');
	  highres_pacn.setVisibility(false);
        highres_pacmn = getNL('http://www.fintree.com/demodata/Wind_Map_PacNW_MN.kmz');
	  highres_pacmn.setVisibility(false);
        highres_pacms = getNL('http://www.fintree.com/demodata/Wind_Map_PacNW_MS.kmz');
	  highres_pacms.setVisibility(false);
        highres_pacs = getNL('http://www.fintree.com/demodata/Wind_Map_PacNW_South.kmz');
	  highres_pacs.setVisibility(false);
        highres_ca1 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_1.kmz');
	  highres_ca1.setVisibility(false);
        highres_ca2 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_2.kmz');
	  highres_ca2.setVisibility(false);
 	  highres_ca3 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_3.kmz');
	  highres_ca3.setVisibility(false);
        highres_ca4 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_4.kmz');
	  highres_ca4.setVisibility(false);
 	  highres_ca5 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_5.kmz');
	  highres_ca5.setVisibility(false);
        highres_ca6 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_6.kmz');
	  highres_ca6.setVisibility(false);
        highres_ca7 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_7.kmz');
	  highres_ca7.setVisibility(false);
        highres_ca8 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_8.kmz');
	  highres_ca8.setVisibility(false);
     //   highres_ca_pw1 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_Poor_1.kmz');
     //  highres_ca_pw1.setVisibility(false);
     //	  highres_ca_pw2 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_Poor_2.kmz');
     //  highres_ca_pw2.setVisibility(false);
     //	  highres_ca_pw3 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_Poor_3.kmz');
     //	  highres_ca_pw3.setVisibility(false);
     //	  highres_ca_pw4 = getNL('http://www.fintree.com/demodata/Wind_Map_CA_Poor_4.kmz');
     //	  highres_ca_pw4.setVisibility(false); 
      util_ma = getNL('http://www.fintree.com/demodata/Util_MA.kmz');  
      util_ma.setVisibility(false);
	cons_p = getNL('http://www.nrdc.org/googleearth/ConsSolRenewUSWest_GE_NRDC/Merge_01April2009/Merge_Category01_Raster_lvl6/Merge_Category01_Raster_lvl6.kmz');  
      cons_p.setVisibility(false);
	cons_r = getNL('http://www.nrdc.org/googleearth/ConsSolRenewUSWest_GE_NRDC/Merge_01April2009/Merge_Category02_Raster_lvl6/Merge_Category02_Raster_lvl6.kmz');  
      cons_r.setVisibility(false);
	cons_a = getNL('http://www.nrdc.org/googleearth/ConsSolRenewUSWest_GE_NRDC/Merge_01April2009/Merge_Category03_Raster_lvl6/Merge_Category03_Raster_lvl6.kmz');  
      cons_a.setVisibility(false);
      birds_ia = getNL('http://www.fintree.com/demodata/birds_ia.kmz');
	birds_ia.setVisibility(false);
      birds_gb = getNL('http://www.fintree.com/demodata/birds_gb.kmz');
	birds_gb.setVisibility(false);
      birds_wyg = getNL('http://www.fintree.com/demodata/birds_wyg.kmz');
	birds_wyg.setVisibility(false);
	solar_jan = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_jan.kmz');
	solar_jan.setVisibility(false);
	solar_feb = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_feb.kmz');
	solar_feb.setVisibility(false);
	solar_mar = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_mar.kmz');
	solar_mar.setVisibility(false);
	solar_apr = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_apr.kmz');
	solar_apr.setVisibility(false);
	solar_may = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_may.kmz');
	solar_may.setVisibility(false);
	solar_jun = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_jun.kmz');
	solar_jun.setVisibility(false);
	solar_jul = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_jul.kmz');
	solar_jul.setVisibility(false);
	solar_aug = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_aug.kmz');
	solar_aug.setVisibility(false);
	solar_sep = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_sep.kmz');
	solar_sep.setVisibility(false);
	solar_oct = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_oct.kmz');
	solar_oct.setVisibility(false);
	solar_nov = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_nov.kmz');
	solar_nov.setVisibility(false);
	solar_dec = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_dec.kmz');
	solar_dec.setVisibility(false);
	solar_annl = getNL('http://www.fintree.com/demodata/solar_pv_resource_map_annl.kmz');
	solar_annl.setVisibility(false);
	epautilwind = getNL('http://www.fintree.com/demodata/epa_re_energy_utilwind.kmz');
	epautilwind.setVisibility(false);
	epacommwind = getNL('http://www.fintree.com/demodata/epa_re_energy_commwind.kmz');
	epacommwind.setVisibility(false);
	epanongridtiewind = getNL('http://www.fintree.com/demodata/epa_re_energy_nongridwind.kmz');
	epanongridtiewind.setVisibility(false);
	epacspsolar = getNL('http://www.fintree.com/demodata/epa_re_energy_csputilsolar.kmz');
	epacspsolar.setVisibility(false);
	epapvsolar = getNL('http://www.fintree.com/demodata/epa_re_energy_pvutilsolar.kmz');
	epapvsolar.setVisibility(false);
	epanongridtiesolar = getNL('http://www.fintree.com/demodata/epa_re_energy_nongridsolar.kmz');
	epanongridtiesolar.setVisibility(false);
	epalandfills = getNL('http://www.fintree.com/demodata/landfills_inactive_closed.kmz');
	epalandfills.setVisibility(false);
      transmission = getNL('http://www.fintree.com/demodata/transmission.kmz');
	transmission.setVisibility(false);
      historic1 = getNL('http://www.fintree.com/demodata/NRHP_Northeast_1.kmz');
	historic1.setVisibility(false);
	historic2 = getNL('http://www.fintree.com/demodata/NRHP_Northeast_2.kmz');
	historic2.setVisibility(false);
	historic3 = getNL('http://www.fintree.com/demodata/NRHP_Northeast_3.kmz');
	historic3.setVisibility(false);
	historic4 = getNL('http://www.fintree.com/demodata/NRHP_Northeast_4.kmz');
	historic4.setVisibility(false);
	historic5 = getNL('http://www.fintree.com/demodata/NRHP_South_1.kmz');
	historic5.setVisibility(false);
	historic6 = getNL('http://www.fintree.com/demodata/NRHP_South_2.kmz');
	historic6.setVisibility(false);
	historic7 = getNL('http://www.fintree.com/demodata/NRHP_South_3.kmz');
	historic7.setVisibility(false);
	historic8 = getNL('http://www.fintree.com/demodata/NRHP_South_4.kmz');
	historic8.setVisibility(false);
	historic9 = getNL('http://www.fintree.com/demodata/NRHP_Midwest_1.kmz');
	historic9.setVisibility(false);
	historic10 = getNL('http://www.fintree.com/demodata/NRHP_Midwest_2.kmz');
	historic10.setVisibility(false);
	historic11 = getNL('http://www.fintree.com/demodata/NRHP_Midwest_3.kmz');
	historic11.setVisibility(false);
	historic12 = getNL('http://www.fintree.com/demodata/NRHP_Midwest_4.kmz');
	historic12.setVisibility(false);
	historic13 = getNL('http://www.fintree.com/demodata/NRHP_West_1.kmz');
	historic13.setVisibility(false);
	historic14 = getNL('http://www.fintree.com/demodata/NRHP_West_2.kmz');
	historic14.setVisibility(false);
	historic15 = getNL('http://www.fintree.com/demodata/NRHP_Territories.kmz');
	historic15.setVisibility(false);
      meteodyn80AT = getNL('http://www.fintree.com/demodata/Meteodyn_80AT.kmz');
      meteodyn80AT.setVisibility(false);
      meteodyn80KT = getNL('http://www.fintree.com/demodata/Meteodyn_80KT.kmz');
      meteodyn80KT.setVisibility(false);
	meteodyn80PotT = getNL('http://www.fintree.com/demodata/Meteodyn_80PotT.kmz');
      meteodyn80PotT.setVisibility(false);
	meteodyn80ProdT = getNL('http://www.fintree.com/demodata/Meteodyn_80ProdT.kmz');
      meteodyn80ProdT.setVisibility(false);
	meteodyn80Fact = getNL('http://www.fintree.com/demodata/Meteodyn_80Fact.kmz');
      meteodyn80Fact.setVisibility(false);
	meteodyn80Vmoy = getNL('http://www.fintree.com/demodata/Meteodyn_80Vmoy.kmz');
      meteodyn80Vmoy.setVisibility(false);
	meteodyn80Tmoy = getNL('http://www.fintree.com/demodata/Meteodyn_80Tmoy.kmz');
      meteodyn80Tmoy.setVisibility(false);
	meteodyn80Imoy = getNL('http://www.fintree.com/demodata/Meteodyn_80Imoy.kmz');
      meteodyn80Imoy.setVisibility(false);
      hydro1 = getNL('http://www.fintree.com/demodata/Lwr48_CandY_noMicro_1.kmz');
      hydro1.setVisibility(false);
      hydro2 = getNL('http://www.fintree.com/demodata/Lwr48_CandY_noMicro_2.kmz');
      hydro2.setVisibility(false);
      hydro3 = getNL('http://www.fintree.com/demodata/Lwr48_CandY_noMicro_3.kmz');
      hydro3.setVisibility(false);
      hydro4 = getNL('http://www.fintree.com/demodata/Lwr48_CandY_noMicro_4.kmz');
      hydro4.setVisibility(false);
      hydro5 = getNL('http://www.fintree.com/demodata/Lwr48_CandY_noMicro_5.kmz');
      hydro5.setVisibility(false);
      hydro6 = getNL('http://www.fintree.com/demodata/Lwr48_CandY_noMicro_6.kmz');
      hydro6.setVisibility(false);
      hydroHI = getNL('http://www.fintree.com/demodata/HI_CandY_noMicro.kmz');
      hydroHI.setVisibility(false);
      hydroAK = getNL('http://www.fintree.com/demodata/AK_CandY_noMicro.kmz');
      hydroAK.setVisibility(false);
	}
	
	function failureCallback(object) {
	}


function mousedown_eventListener(event) {
    // select a location with a mouse click

    var mouseloc = ge.createLocation('');
    mouseloc.setLatitude(event.getLatitude());
    mouseloc.setLongitude(event.getLongitude());
    document.layeroptions.lat.value = mouseloc.getLatitude().toFixed(5);
    document.layeroptions.lon.value = mouseloc.getLongitude().toFixed(5);
}
	
	function gotolocation(address) {
               geocoder.getLatLng(address, function(point) {
                  if (point && ge != null) {
                    var lookat = ge.createLookAt('');
                    lookat.set(point.y, point.x, 100, ge.ALTITUDE_RELATIVE_TO_GROUND, 0, 0, 400);
                    ge.getView().setAbstractView(lookat);
                  } 
			});
     }
     	
	function getNL(kmlURL){

      var nlId = '';
	var lastid = 0;
      lastnode = ge.getFeatures().getLastChild();
      if (lastnode == null) {
		  lastid = 0;
	  }
	  else {
		  lastid = parseInt(lastnode.getId());
	  }
	  var newid = lastid + 1;
	  var found = true;
		  
	  // search until an unused pmid is found
	  do { 
          found = UsedPmId(newid);
		  if(found==true) {
		     newid++;
		  }
	  } while (found == true);
		  
	   nlId = newid + '';

      //	var nl = ge.createNetworkLink("");
            var nl = ge.createNetworkLink(nlId);
      	var link = ge.createLink("");
      	link.setHref(kmlURL);
      	nl.setLink(link);
      	nl.setFlyToView(false);
      	//ge.getGlobe().getFeatures().appendChild(nl);
            ge.getFeatures().appendChild(nl);
     

    	return nl;
    }
  
	
  function updateOptions(layer,state) {
  
  if (layer == "windresource") {
      windresource.setVisibility(state);
	  if (state == true && document.layeroptions.highresmenu.value != "default")
	      { document.layeroptions.highresmenu.value = "default";
              unselectOptionsmenu("highresmenu"); 
		}
     }

  else if (layer == "windfarms") {
      windfarms.setVisibility(state); }

  else if (layer == "airports") {
      airports1.setVisibility(state);
	airports2.setVisibility(state);
	airports3.setVisibility(state);
	airports4.setVisibility(state);
	airports5.setVisibility(state);
	airports6.setVisibility(state);
	airports7.setVisibility(state); }

  else if (layer == "historic") {
      historic1.setVisibility(state);
	historic2.setVisibility(state);
	historic3.setVisibility(state);
	historic4.setVisibility(state);
	historic5.setVisibility(state);
	historic6.setVisibility(state);
	historic7.setVisibility(state);
      historic8.setVisibility(state);
	historic9.setVisibility(state);
	historic10.setVisibility(state);
	historic11.setVisibility(state);
	historic12.setVisibility(state);
	historic13.setVisibility(state);
	historic14.setVisibility(state);
      historic15.setVisibility(state);  }

  else if (layer == "hydro") {
        hydro1.setVisibility(state);
	hydro2.setVisibility(state);
	hydro3.setVisibility(state);
	hydro4.setVisibility(state);
	hydro5.setVisibility(state);
	hydro6.setVisibility(state);
        hydroAK.setVisibility(state);
	hydroHI.setVisibility(state); }

  else if (layer == "radar_10mi") {
      radar_10mi.setVisibility(state); }

  else if (layer == "radar_large") {
      radar_large.setVisibility(state); }

  else if (layer == "radar_towers") {
      radar_towers.setVisibility(state); }

  else if (layer == "epautilwind") 
      { epautilwind.setVisibility(state); }

  else if (layer == "epacommwind") 
      { epacommwind.setVisibility(state); }

  else if (layer == "epanongridtiewind") 
      { epanongridtiewind.setVisibility(state); }

  else if (layer == "epacspsolar") 
      { epacspsolar.setVisibility(state); }

  else if (layer == "epapvsolar") 
      { epapvsolar.setVisibility(state); }

  else if (layer == "epanongridtiesolar") 
      { epanongridtiesolar.setVisibility(state); }
	  
  else if (layer == "epalandfills") 
      { epalandfills.setVisibility(state); }

  else if (layer == "privateland") {}
     //{privateland.setVisibility(state); }

  else if (layer == "met") {
      met.setVisibility(state); }

  else if (layer == "birds_ia") {
      birds_ia.setVisibility(state); }

  else if (layer == "birds_gb") {
      birds_gb.setVisibility(state); }

  else if (layer == "birds_wyg") {
      birds_wyg.setVisibility(state); }

  else if (layer == "transmission") {
      transmission.setVisibility(state); }

 
} 

function updateOptionsmenu(layer,selection) {

if (layer == "highresmenu") {
//High Resolution Windmap selection
      windresource.setVisibility(false);
      document.layeroptions.windresource.checked = false;
      highres_ma.setVisibility(selection == "MA");
      highres_vt.setVisibility(selection == "VT");  
      highres_akn1.setVisibility(selection == "AKN");
      highres_akn2.setVisibility(selection == "AKN");
      highres_akn3.setVisibility(selection == "AKN");
      highres_akm1.setVisibility(selection == "AKM");
      highres_akm2.setVisibility(selection == "AKM");
      highres_akm3.setVisibility(selection == "AKM");
      highres_aks1.setVisibility(selection == "AKS");
      highres_aks2.setVisibility(selection == "AKS");
      highres_ri.setVisibility(selection == "RI");
      highres_ar.setVisibility(selection == "AR");
      highres_az.setVisibility(selection == "AZ");
      highres_ca1.setVisibility(selection == "CA");
      highres_ca2.setVisibility(selection == "CA");
	highres_ca3.setVisibility(selection == "CA");
	highres_ca4.setVisibility(selection == "CA");
	highres_ca5.setVisibility(selection == "CA");
	highres_ca6.setVisibility(selection == "CA");
	highres_ca7.setVisibility(selection == "CA");
	highres_ca8.setVisibility(selection == "CA");
//	highres_ca_pw1.setVisibility(selection == "CA");
//	highres_ca_pw2.setVisibility(selection == "CA");
//	highres_ca_pw3.setVisibility(selection == "CA");
//	highres_ca_pw4.setVisibility(selection == "CA");
      highres_co1.setVisibility(selection == "CO");
      highres_co2.setVisibility(selection == "CO");
	highres_co3.setVisibility(selection == "CO");
	highres_co4.setVisibility(selection == "CO");
	highres_co5.setVisibility(selection == "CO");
      highres_ct.setVisibility(selection == "CT");
      highres_hi.setVisibility(selection == "HI");
      highres_il.setVisibility(selection == "IL");
      highres_mi1.setVisibility(selection == "MI");
	highres_mi2.setVisibility(selection == "MI");
	highres_mi3.setVisibility(selection == "MI");
	highres_mi4.setVisibility(selection == "MI");
      highres_mid1.setVisibility(selection == "MID");
	highres_mid2.setVisibility(selection == "MID");
	highres_mid3.setVisibility(selection == "MID");
	highres_mid4.setVisibility(selection == "MID");
	highres_mid5.setVisibility(selection == "MID");
	highres_midp.setVisibility(selection == "MID");
      highres_men.setVisibility(selection == "MEN");
      highres_mes.setVisibility(selection == "MES");
      highres_mo.setVisibility(selection == "MO");
      highres_in.setVisibility(selection == "IN");
      highres_oh.setVisibility(selection == "OH");
      highres_ndsd.setVisibility(selection == "NDSD");
      highres_ne.setVisibility(selection == "NE");
      highres_nv.setVisibility(selection == "NV");
      highres_nh.setVisibility(selection == "NH");
      highres_ut.setVisibility(selection == "UT");
      highres_pacn.setVisibility(selection == "PACN");
      highres_pacmn.setVisibility(selection == "PACMN");
      highres_pacms.setVisibility(selection == "PACMS");
      highres_pacs.setVisibility(selection == "PACS");
  }

if (layer == "utilmenu") {
//Electricity Provider selection
      windresource.setVisibility(false);
      document.layeroptions.windresource.checked = false;
      util_ma.setVisibility(selection == "MA");
  /*    util_vt.setVisibility(selection == "VT");  
      util_akn.setVisibility(selection == "AKN");
      util_akm.setVisibility(selection == "AKM");
      util_aks.setVisibility(selection == "AKS");
      util_ri.setVisibility(selection == "RI");
      util_ar.setVisibility(selection == "AR");
      util_az.setVisibility(selection == "AZ");
      util_co.setVisibility(selection == "CO");
      util_ct.setVisibility(selection == "CT");
      util_hi.setVisibility(selection == "HI");
      util_il.setVisibility(selection == "IL");
      util_mi.setVisibility(selection == "MI");
      util_me.setVisibility(selection == "ME");
      util_in.setVisibility(selection == "IN");
      util_oh.setVisibility(selection == "OH");
      util_ndsd.setVisibility(selection == "NDSD");
      util_nv.setVisibility(selection == "NV");
      util_nh.setVisibility(selection == "NH");
      util_ut.setVisibility(selection == "UT");
      util_pacn.setVisibility(selection == "PACN");
      util_pacmn.setVisibility(selection == "PACMN");
      util_pacms.setVisibility(selection == "PACMS");
      util_pacs.setVisibility(selection == "PACS"); */
   }

if (layer == "consmenu") {
//Conservation Lands selection
      windresource.setVisibility(false);
      document.layeroptions.windresource.checked = false;
      cons_p.setVisibility(selection == "P");
      cons_r.setVisibility(selection == "R");  
      cons_a.setVisibility(selection == "A");
	  }
	  
if (layer == "solarmenu") {
//Solar Maps
      windresource.setVisibility(false);
      document.layeroptions.windresource.checked = false;
      solar_jan.setVisibility(selection == "JAN");
      solar_feb.setVisibility(selection == "FEB");  
      solar_mar.setVisibility(selection == "MAR");
	  solar_apr.setVisibility(selection == "APR");
	  solar_may.setVisibility(selection == "MAY");
	  solar_jun.setVisibility(selection == "JUN");
	  solar_jul.setVisibility(selection == "JUL");
	  solar_aug.setVisibility(selection == "AUG");
	  solar_sep.setVisibility(selection == "SEP");
	  solar_oct.setVisibility(selection == "OCT");
	  solar_nov.setVisibility(selection == "NOV");
	  solar_dec.setVisibility(selection == "DEC");
	  solar_annl.setVisibility(selection == "ANN");
	  }

if (layer == "meteodyn") {
//Meteodyn Example
      windresource.setVisibility(false);
      document.layeroptions.windresource.checked = false;
      meteodyn80AT.setVisibility(selection == "80AT");
      meteodyn80AT.setFlyToView(true);
      meteodyn80KT.setVisibility(selection == "80KT");
      meteodyn80KT.setFlyToView(true);
      meteodyn80PotT.setVisibility(selection == "80PotT");
      meteodyn80PotT.setFlyToView(true);
      meteodyn80ProdT.setVisibility(selection == "80ProdT");
      meteodyn80ProdT.setFlyToView(true);
	meteodyn80Fact.setVisibility(selection == "80Fact");
      meteodyn80Fact.setFlyToView(true);
	meteodyn80Vmoy.setVisibility(selection == "80Vmoy");
      meteodyn80Vmoy.setFlyToView(true);
	meteodyn80Imoy.setVisibility(selection == "80Imoy");
      meteodyn80Imoy.setFlyToView(true);
	meteodyn80Tmoy.setVisibility(selection == "80Tmoy");
	meteodyn80Tmoy.setFlyToView(true);
      }
}


function unselectOptionsmenu(layer) {

if (layer == "highresmenu") {
//High Resolution Windmap selection
      highres_ma.setVisibility(false);
      highres_vt.setVisibility(false);  
      highres_akn1.setVisibility(false);
	highres_akn2.setVisibility(false);
	highres_akn3.setVisibility(false);
      highres_akm1.setVisibility(false);
	highres_akm2.setVisibility(false);
	highres_akm3.setVisibility(false);
      highres_aks1.setVisibility(false);
	highres_aks2.setVisibility(false);
      highres_ri.setVisibility(false);
      highres_ar.setVisibility(false);
      highres_az.setVisibility(false);
      highres_ca1.setVisibility(false);
      highres_ca2.setVisibility(false);
	highres_ca3.setVisibility(false);
	highres_ca4.setVisibility(false);
	highres_ca5.setVisibility(false);
	highres_ca6.setVisibility(false);
	highres_ca7.setVisibility(false);
	highres_ca8.setVisibility(false);
//	highres_ca_pw1.setVisibility(false);
//	highres_ca_pw2.setVisibility(false);
//	highres_ca_pw3.setVisibility(false);
//	highres_ca_pw4.setVisibility(false);
      highres_co1.setVisibility(false);
      highres_co2.setVisibility(false);
      highres_co3.setVisibility(false);
      highres_co4.setVisibility(false);
      highres_co5.setVisibility(false);
      highres_ct.setVisibility(false);
      highres_hi.setVisibility(false);
      highres_il.setVisibility(false);
      highres_mi1.setVisibility(false);
	highres_mi2.setVisibility(false);
	highres_mi3.setVisibility(false);
	highres_mi4.setVisibility(false);
      highres_mid1.setVisibility(false);
	highres_mid2.setVisibility(false);
	highres_mid3.setVisibility(false);
	highres_mid4.setVisibility(false);
	highres_mid5.setVisibility(false);
	highres_midp.setVisibility(false);
      highres_men.setVisibility(false);
      highres_mes.setVisibility(false);
      highres_mo.setVisibility(false);
      highres_in.setVisibility(false);
      highres_oh.setVisibility(false);
      highres_ndsd.setVisibility(false);
      highres_nv.setVisibility(false);
      highres_ne.setVisibility(false);
      highres_nh.setVisibility(false);
      highres_ut.setVisibility(false);
      highres_pacn.setVisibility(false);
      highres_pacmn.setVisibility(false);
      highres_pacms.setVisibility(false);
      highres_pacs.setVisibility(false);
  }

if (layer == "utilmenu") {
//Electricity Provider selection
      util_ma.setVisibility(false);
  /*  util_vt.setVisibility(false);  
      highres_akn.setVisibility(false);
      util_akm.setVisibility(false);
      util_aks.setVisibility(false);
      util_ri.setVisibility(false);
      util_ar.setVisibility(false);
      util_az.setVisibility(false);
      util_co.setVisibility(false);
      util_ct.setVisibility(false);
      util_hi.setVisibility(false);
      util_il.setVisibility(false);
      util_mi.setVisibility(false);
      util_me.setVisibility(false);
      util_in.setVisibility(false);
      util_oh.setVisibility(false);
      util_ndsd.setVisibility(false);
      util_nv.setVisibility(false);
      util_nh.setVisibility(false);
      util_ut.setVisibility(false);
      util_pacn.setVisibility(false);
      util_pacmn.setVisibility(false);
      util_pacms.setVisibility(false);
      util_pacs.setVisibility(false);  */
   }
   
 if (layer == "consmenu") {
//Conservation Lands selection
     cons_p.setVisibility(false);
     cons_r.setVisibility(false);  
     cons_a.setVisibility(false);
   }
   
 if (layer == "solarmenu") {
//Solar Resource map
      solar_jan.setVisibility(false);
      solar_feb.setVisibility(false);  
      solar_mar.setVisibility(false);
	  solar_apr.setVisibility(false);
	  solar_may.setVisibility(false);
	  solar_jun.setVisibility(false);
	  solar_jul.setVisibility(false);
	  solar_aug.setVisibility(false);
	  solar_sep.setVisibility(false);
	  solar_oct.setVisibility(false);
	  solar_nov.setVisibility(false);
	  solar_dec.setVisibility(false);
	  solar_annl.setVisibility(false);
	}

if (layer == "meteodyn") {
//Meteodyn Example
      meteodyn80AT.setVisibility(false);
      meteodyn80KT.setVisibility(false);  
      meteodyn80PotT.setVisibility(false);
	meteodyn80ProdT.setVisibility(false);
	meteodyn80Fact.setVisibility(false);
	meteodyn80Vmoy.setVisibility(false);
	meteodyn80Imoy.setVisibility(false);
	meteodyn80Tmoy.setVisibility(false);
      }

}




    var arrTurbineloc = [];   //array for turbine locations
    var turbine_num = 0;      //turbine counter
	var xmlhttp;
	var lastnode = null;      //last node in GE DOM tree
	var arrUsedPmId = [];     //array of used placemarkIds
	var id = 0;               //arrPrevPmId index
	var editing = false;      //is true if user clicks to edit windfarm. Used in function tbdel() to check if ok to delete winc turbine from db. 
                        

function placeturbine(lat,lon,pub,pmtag,createdby) {
// Load and display a 3d model from a Collada file

// Read id of last added placemark from DOM tree
      var placemarkId = '';
	  var lastid = 0;
      lastnode = ge.getFeatures().getLastChild();
      if (lastnode == null) {
		  lastid = 0;
	  }
	  else {
		  lastid = parseInt(lastnode.getId());
	  }
	  var newid = lastid + 1;
	  var found = true;
		  
	  // search until an unused pmid is found
	  do { 
          found = UsedPmId(newid);
		  if(found==true) {
		     newid++;
		  }
	  } while (found == true);
		  
	   placemarkId = newid + '';
 
   // Placemark
	  var placemark = ge.createPlacemark(placemarkId);

   // Placemark/Model (geometry)
	  var model = ge.createModel('');
      placemark.setGeometry(model);

   // Placemark/Model/Link - a textured model created in Sketchup and exported as Collada.
      var link = ge.createLink('');
   	  link.setHref('http://www.fintree.com/demodata/SingleTurbine.dae');
	  model.setLink(link);

   // Placemark/Model/Location
	  var loc = ge.createLocation('');
      var tlat = parseFloat(lat); 
      var tlon = parseFloat(lon); 
	  loc.setLatitude(tlat);
	  loc.setLongitude(tlon);

      model.setLocation(loc);
	  
   // add the model placemark to Earth	
      ge.getFeatures().appendChild(placemark);

/////----------- workaround until Google fixes issue -----------------------------
   // add an icon to the first tb in the windfarm - by creating a placemark point

   if(pmtag!='') {
      var tagid = placemarkId + 'p'
      var tag = ge.createPlacemark(tagid);
      var point = ge.createPoint('');
	  point.setLatitude(tlat);
      point.setLongitude(tlon);
      tag.setGeometry(point);
	  var tagname = pmtag;
	  tag.setName(tagname);
	  var tagballoon = 'Created by ' + createdby;
	  tag.setDescription(tagballoon);
	  
	  // Create style map for placemark
      var icon = ge.createIcon('');
      icon.setHref('http://www.re-unity.com/windfarmwt.png');
      var style = ge.createStyle('');
      style.getIconStyle().setIcon(icon);
      tag.setStyleSelector(style);
	   
	  // add tag to Google Earth	
      ge.getFeatures().appendChild(tag);
	}
/////------------ end workaround --------------------------------------------------
   // fly to view the model
   if(pub==0) {
      var lookAt = ge.createLookAt('');
  	  lookAt.setRange(300);
 	  lookAt.setTilt(45);
      lookAt.setLatitude(tlat);
      lookAt.setLongitude(tlon);
 	  ge.getView().setAbstractView(lookAt);
   }
   // save turbine location temporarily 
      temp_turbineloc(tlat, tlon, placemarkId,pub);
   // update table display if not public turbine
      if (pub==0) {
          turbineloc_table();
	  }
}

function UsedPmId(lastid) {
// checks if a placemarkId has been previously used 

   for(var k=0; k<arrUsedPmId.length; k++) {
	   if(arrUsedPmId[k]==lastid) {
	     return true;
	   }
   }
  return false;
}

function deleteturbine(lat,lon,placemarkId) {
   // Delete specified turbine from GE
   // Add its placemarkId to the array of used Ids

      var tlat = parseFloat(lat); 
      var tlon = parseFloat(lon); 

      removenodefromDOM(ge,placemarkId);  
	  arrUsedPmId[id] = placemarkId;  //cannot reuse this placemarkId
	  id++;
      turbineloc_table();   //refresh turbine table
}

function removenodefromDOM(ge,placemarkId) {
if(ge.getFeatures().hasChildNodes()) {

          var subNodes = ge.getFeatures().getChildNodes();
          var numNodes = subNodes.getLength();

          for(var i = 0; i < numNodes; i++) {
			var eachSubNode = subNodes.item(i);
		    var nodeType = eachSubNode.getType();
           
            switch(nodeType) {
              case 'KmlPlacemark' :
			        var nodeId = eachSubNode.getId();
				    if (nodeId==placemarkId) {
                        ge.getFeatures().removeChild(eachSubNode);
						
						 nodeId = nodeId + 'p';
						 for (var x = i; x < numNodes; x++) {  //find & remove placemark
							  var pm = subNodes.item(x).getId();
							  if (pm==nodeId) {
							      ge.getFeatures().removeChild(subNodes.item(x));
							  }
						 }   
					}
			  break;
			  
			  case 'KmlFolder' :
                removenodefromDOM(eachSubNode);     //recurse..
              break;
              
			  default :  
              break;
            }
          }
        }
}


function temp_turbineloc(tlat, tlon, placemarkId,pub) {
    // temporarily saves turbine locations
       arrTurbineloc[turbine_num] = new Array(4);   //make turbine location array multidimensional containing lat, long, id and public flag
       arrTurbineloc[turbine_num][0] = tlat;        
       arrTurbineloc[turbine_num][1] = tlon; 
	   arrTurbineloc[turbine_num][2] = placemarkId; 
	   arrTurbineloc[turbine_num][3] = pub;
       turbine_num++;	  
}

function update_tempturbineloc(tbpos) {
    // update turbine array to reflect deletes
       for(var i=tbpos; i<turbine_num; i++) {   
	  
	      if (i+1==turbine_num)   {   //deleting last item in list
		          arrTurbineloc[i][0] = null;
                  arrTurbineloc[i][1] = null;
	              arrTurbineloc[i][2] = null;
				  arrTurbineloc[i][3] = null;
		     }
	
		  else {
                  arrTurbineloc[i][0] =  arrTurbineloc[i+1][0]; 
                  arrTurbineloc[i][1] =  arrTurbineloc[i+1][1]; 
	              arrTurbineloc[i][2] =  arrTurbineloc[i+1][2]; 
				  arrTurbineloc[i][3] =  arrTurbineloc[i+1][3]; 
		  }
      }
	turbine_num--;
}

function turbineloc_table() {
    // display turbine locations in table
       var j=0;
       var resultstr = "<input type='button' name='tbdelbutton' class='calendarText' onclick='tbdel();' value='Delete'>";
       resultstr = resultstr + "<table> ";
       resultstr = resultstr + "<td></td><td><u>#</u></td><td><u>Latitude</u></td><td><u>Longitude</u></td><tr>";           
       for (i=0; i<turbine_num; i++) { 
	        // check if public turbine - if yes, don't display
			if(arrTurbineloc[i][3]==false) {  // not-public turbine, display
			j++;
		      resultstr = resultstr + "<td><input type='checkbox' name='tb' value=" + j + "></td>";
              resultstr = resultstr + "<td>"+ j +"</td> ";
              resultstr = resultstr + "<td>"+ arrTurbineloc[i][0] +"</td> ";
              resultstr = resultstr + "<td>"+ arrTurbineloc[i][1] +"</td> ";
              resultstr = resultstr + "<tr> ";
		   }
       }
    resultstr = resultstr + "</table>";
    document.getElementById("txtHint").innerHTML = resultstr;
}

function store_turbineloc() {
   // store turbine locations in database
      var j = 0;
      var name = document.layeroptions.wfname.value;
      var priv = document.layeroptions.private.checked;  //true=checked
     
      for (i=0; i<turbine_num; i++) { 
	       if(arrTurbineloc[i][3]==false) {  // new
              j = i+1;
              querystring="store_windfarm.php";
              querystring=querystring+"?name=" + name + "&tname=" + j + "&lat=" + arrTurbineloc[i][0] + "&lon=" + arrTurbineloc[i][1] + "&private=" + priv;
              dbinsert(querystring);
		  }
      }
}

function load_windfarm(title)
{
  var outtext = "<u>" + title + "</u><br><br>";
  var url="load_windfarm.php?opt=0";  

  xmlhttp=GetXmlHttpObject();
  if (xmlhttp==null)
  {
    alert ("Browser does not support HTTP Request");
    return;
  }

  xmlhttp.onreadystatechange=function() {
    if (xmlhttp.readyState==4)
    {
     document.getElementById("txtHint").innerHTML = outtext + xmlhttp.responseText;
    }
  }
  xmlhttp.open("GET",url,true);  // false=wait for server response
  xmlhttp.send(null);
}


function load_turbineloc(wfname) 
{

 var url="load_windfarm.php?opt=2&wfname=" + wfname;  

  xmlhttp=GetXmlHttpObject();
  if (xmlhttp==null)
  {
    alert ("Browser does not support HTTP Request");
    return;
  }

  xmlhttp.onreadystatechange=function() {
    if (xmlhttp.readyState==4)
    {
      var qresponse = xmlhttp.responseText;
      loadturbines(qresponse,0);
	}
  }
  xmlhttp.open("GET",url,true);  // false=wait for server response
  xmlhttp.send(null);
}


function load_windfarmname(wfpos) {
   // assign wind farm name to entry field
     
     var querystring="load_windfarm.php?opt=1&wfpos=" + wfpos;
         dbinsert(querystring);
         document.layeroptions.wfname.value = xmlhttp.responseText;
}




function GetXmlHttpObject() {
      
	try {
 		// Firefox, Opera 8.0+, Safari
 		xmlhttp=new XMLHttpRequest();
 	}
	catch (e) {
 		// Internet Explorer
 			try {
  			xmlhttp=new ActiveXObject("Msxml2.XMLHTTP");
  		}
 			catch (e) {
  			xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
  		}
 	}
	return xmlhttp;
}

function dbinsert(querystring) {
   queryobj=GetXmlHttpObject();
   queryobj.open("GET", querystring, false);
   queryobj.send(null);
}

function loadturbines(qresponse,pub) {
    var oneturbine = qresponse.split(";"); 
    var ldturbines = [];
    var farmname = '';
    var pmtag = '';
    var createdby = '';
    
   for(var s = 0; s < (oneturbine.length-1); s++) {
       var turbines = oneturbine[s].split(",");
          ldturbines[s] = new Array(5);
          ldturbines[s][0] = turbines[0];  // tb name
          ldturbines[s][1] = turbines[1];  // lat
          ldturbines[s][2] = turbines[2];  // long
		  ldturbines[s][3] = turbines[3];  // wfname
		  ldturbines[s][4] = turbines[4];  // username
	  
	      //attach placemark balloon with windfarm name to first turbine of each windfarm
		  if (ldturbines[s][3]==farmname) {   
			  pmtag = ''; }
		  else { 
		         farmname = ldturbines[s][3]; 
				 pmtag = farmname; 
				 createdby = ldturbines[s][4]
		  }
       // place turbines
          placeturbine(ldturbines[s][1],ldturbines[s][2],pub,pmtag,createdby); 		  
       }
 }


function selectall(value) {
// select/unselect all checkboxes in windfarm list

var boxes = document.layeroptions.wf;  //get all checkboxes named "wf"
var numboxes = boxes.length;

if(value == "Check all") {

    if(numboxes == null) {  // only 1 checkbox
       boxes.checked = true; }

    else {
       for(var j=0; j<numboxes; j++) { 
          boxes[j].checked = true;
       }
   }
  document.layeroptions.wfbutton.value = "Uncheck all";  
}

else {
   if(numboxes == null) {
       boxes.checked = false; }

   else {  
          for(var j=0; j<numboxes; j++) { 
            boxes[j].checked = false;
          }
        }
   document.layeroptions.wfbutton.value = "Check all"; 
     } 
}


function wfdel() {

  var arrwfname = [];
  // get names of windfarm(s) to delete
  delwfname(arrwfname);
 
  //delete windfarm 
  for(var i=0;i<arrwfname.length; i++) {
	    //delete windfarm from GE
	    deletelist(arrwfname[i]); 
				
		// delete windfarm from db
        querystring="del_windfarm.php?wfdelete=" + arrwfname[i];
        dbinsert(querystring); 
  }
  //update display table
  load_windfarm('Saved Windfarms');	
}


function delwfname(arrwfname) {
// find name of windfarm(s) to delete

var boxes = document.layeroptions.wf; 
var numboxes = boxes.length;
var wfpos = 1;
var querystring="load_windfarm.php?opt=1";

if(numboxes == null && boxes.checked==true) {  // only 1 checkbox
   querystring=querystring+"&wfpos=1"; 
   dbinsert(querystring); 
   arrwfname[0] = xmlhttp.responseText;
}

else {
for(var j=0; j<boxes.length; j++) { 
       
     if (boxes[j].checked == true) {  
         querystring=querystring+"&wfpos=" + wfpos; 
         dbinsert(querystring); 
		 arrwfname[j] = xmlhttp.responseText;
     }
     wfpos++;  
   }
}
return arrwfname; 
}


function deletelist(wfname) {
// Get list of turbines of windfarm to delete

  querystring="load_windfarm.php?opt=2&wfname=" + wfname; 
  dbinsert(querystring); 
  var dellist = xmlhttp.responseText; 
  var oneturbine = dellist.split(";"); 
  var ldturbines = [];
    
   for(var p = 0; p < (oneturbine.length-1); p++) {
       var turbines = oneturbine[p].split(",");
          ldturbines[p] = new Array(5);
          ldturbines[p][0] = turbines[0];  // tb name
          ldturbines[p][1] = turbines[1];  // lat
          ldturbines[p][2] = turbines[2];  // long
		  ldturbines[p][3] = turbines[3];  // wfname

		   // now delete turbines from GE
	       for(var m=0;m<turbine_num; m++) {  
		  	   if(arrTurbineloc[m][0]==ldturbines[p][1] && arrTurbineloc[m][1]==ldturbines[p][2]) { //tb location matches
			  	  placemarkId = arrTurbineloc[m][2]; 
				  removenodefromDOM(ge,placemarkId); 
				  // delete balloon markers
				  balloonId = placemarkId + 'p';
				  removenodefromDOM(ge,balloonId);
				  
	              arrUsedPmId[id] = placemarkId;  //cannot reuse this placemarkId
	              id++;
			   }
		   } 
		}  
}



function wfedit() {
// edit a windfarm's turbine layout

var boxes = document.layeroptions.wf; 
var numboxes = boxes.length;
var chk = 0;
var wfpos = 0;

editing = true;

if(numboxes != null) { // 
   for(var j=0; j<boxes.length; j++) { 
       if (boxes[j].checked == true) {
           chk++;  
           wfpos=j+1;
       }
   }
   if(chk > 1) {  //more than one checkbox checked
      load_windfarm('Select only 1 windfarm for edit');
   }
   else { 
         load_windfarmname(wfpos);
         load_turbineloc(document.layeroptions.wfname.value);
        }
}
else {
      if (numboxes == null && boxes.checked==true)  {  // only 1 windfarm in list
          wfpos = 1;
          load_windfarmname(wfpos);
          load_turbineloc(document.layeroptions.wfname.value);
      }
      else {
          load_windfarm('Select windfarm to edit');
      }
  }
}    

function tbdel() {

// delete windturbine in list
var boxes = document.layeroptions.tb; 
var querystring="del_windturbine.php";
var lat = ""; var lon = "";

if(boxes.length == null && boxes.checked==true) {  // only 1 checkbox
   for(var z=0; z<arrTurbineloc.length; z++)  { // search for non-public tb
       if(arrTurbineloc[z][3]==false) {
          lat = arrTurbineloc[z][0];
          lon = arrTurbineloc[z][1]; 
          placemarkId = arrTurbineloc[z][2];
		  break;
	   }
   }   
   update_tempturbineloc(z);  // delete item in display table
   deleteturbine(lat,lon,placemarkId);  // delete model in GE

   if (editing==true) { // only delete turbines from db with name="Windfarm1" when user has clicked edit button
       querystring=querystring+"?wfname=" + document.layeroptions.wfname.value + "&tbpos=1"; //delete this checked wind turbine from db
       dbinsert(querystring); 
   }
}

else { 
     var numboxes = boxes.length;
	 var delarray = [];  // elements to be deleted
	 var k=0;
	 var tbpos=0;

     // find turbines that are checked for delete
	 for(var j=0; j<numboxes; j++) {   
         if (boxes[j].checked == true) { 
 	         delarray[k] = j;
			 k++;
		 }
	 }
	 // now delete turbines
	 for(var l=0; l<delarray.length; l++) {  
		 tbpos = delarray[l];  // checkbox position of tb to delete 
		 nonptb = tbpos-1;
         for(var m=0;m<turbine_num; m++) {  // m=checkbox position equivalent in arrTurbineloc array
			   if(arrTurbineloc[m][3]==false) { // find non-public tb
			      nonptb++;  //array position of non-public tb
			      if(tbpos==nonptb) {
					  lat = arrTurbineloc[m][0] ;
                      lon = arrTurbineloc[m][1]; 
		              placemarkId = arrTurbineloc[m][2]; 
			  
		              update_tempturbineloc(m);
				  }
			   }
		  }
		  
		  deleteturbine(lat,lon,placemarkId);  //delete turbines from GE
		  
		  if (editing==true) { // only delete turbines from db with name="Windfarm1" when user has clicked edit button
		      querystring=querystring+"?wfname=" + document.layeroptions.wfname.value + "&tbpos=" + (tbpos+1); 
              dbinsert(querystring); 
		  }
		  // adjust checkbox pos from previous deletion
		  if (delarray[l+1] != null) {
		      delarray[l+1]=delarray[l+1]-(l+1) ;  
		  }
	 }
 }
}
	


function load_publicmodels(state) {

// find out if fct called first time
if(typeof self.cnt != 'number') {cnt = 0;} 

 //when fct is called first time, draw public turbines
 if(cnt==0) {  
    var url="load_publicmodels.php";  

    xmlhttp=GetXmlHttpObject();
    if (xmlhttp==null)
    {
       alert ("Browser does not support HTTP Request");
       return;
    }
	
    xmlhttp.onreadystatechange=function() {
    if (xmlhttp.readyState==4)
    {
      var qresponse = xmlhttp.responseText;  //get all public turbine locs
	  loadturbines(qresponse,1);
   	}
  }
  xmlhttp.open("GET",url,true); 
  xmlhttp.send(null);

  cnt++;
 }
 
// after first call, set turbine visibility true/false
else { 
       tbvisibility(ge,state);
     }
}


function tbvisibility(ge,state) {
// sets public turbine visibility true/false based on state of checkbox
if(ge.getFeatures().hasChildNodes()) {

          var subNodes = ge.getFeatures().getChildNodes();
          var numNodes = subNodes.getLength();

          for(var i = 0; i < numNodes; i++) {
			var eachSubNode = subNodes.item(i);
		    var nodeType = eachSubNode.getType();
           
            switch(nodeType) {
              case 'KmlPlacemark' :
			        var nodeId = eachSubNode.getId();
					
					for (var z=0; z<arrTurbineloc.length; z++) {
					     if (nodeId==arrTurbineloc[z][2] && arrTurbineloc[z][3]==true) {  //if a public turbine or placemark
						     eachSubNode.setVisibility(state); 
							 nodeId = nodeId + 'p';
						 
							 for (var y = z; y < numNodes; y++) {  //find placemark
							      var pm = subNodes.item(y).getId();
							          if (pm==nodeId) {
									  subNodes.item(y).setVisibility(state); 
								  }
							 }
						 }
					}
			  break;
			  
			  case 'KmlFolder' :
                tbvisibility(eachSubNode,state);     //recurse..
              break;
              
			  default :  
              break;
            }
          }
        }
}