var d=document;
var gm=google.maps;
var map;
var geocoder;
var z;
var strStartAddrDefault="GPO Adelaide, 141 King William St, Adelaide SA 5000";
var directionsDisplay;
function GMapLoad(mapId,lat,lng,zm,noMkr,typ){
  geocoder=new gm.Geocoder();
  var latlng=new gm.LatLng(lat,lng);
  var options={
    backgroundColor:'#f7ffe9',
    zoom:zm,
    center:latlng,
    mapTypeId:gm.MapTypeId.ROADMAP,
    navigationControl:true,
    mapTypeControl:true,
    scaleControl:true,
    streetViewControl:true,
    overviewMapControl:true,
    scrollwheel:false
  }
  z=zm+3;
  map=new gm.Map(document.getElementById(mapId),options);
  if(typ=='t')map.setMapTypeId(gm.MapTypeId.TERRAIN);
  if(!noMkr || noMkr!=true){var marker=new gm.Marker({position:latlng, map:map, flat:true});}
}
function codeAddr(){
  if(directionsDisplay){
    directionsDisplay.setMap(null);
    d.getElementById('dir').style.display="none";
    d.getElementById('dir').innerHTML="";
  }
  var address=document.getElementById('address').value;
  if(address)geocoder.geocode({'address':address}, function(results, status){
    if(status==gm.GeocoderStatus.OK){
      map.setCenter(results[0].geometry.location);
      map.setZoom(z);
      var marker=new gm.Marker({map:map,position:results[0].geometry.location,flat:true
      });
    }
  });
}
function dispDir(){
  var request,strStartAddr,strEndAddr;
  if(directionsDisplay){
    directionsDisplay.setMap(null);
    d.getElementById('dir').style.display="none";
    d.getElementById('dir').innerHTML="";
  }
  directionsService=new gm.DirectionsService();
  directionsDisplay=new gm.DirectionsRenderer({map:map});
  strStartAddr=d.getElementById('addrStart').value;
  if(!strStartAddr)strStartAddr=strStartAddrDefault;
  strEndAddr=d.getElementById('addrEnd').value;
  directionsDisplay.setPanel(document.getElementById('dir'));
  if(d.getElementById('mode').value=='driving')request={origin:strStartAddr, destination:strEndAddr, travelMode:gm.DirectionsTravelMode.DRIVING, unitSystem:gm.DirectionsUnitSystem.METRIC, region:"AU"};
  else if(d.getElementById('mode').value=='walking')request={origin:strStartAddr, destination:strEndAddr, travelMode:gm.DirectionsTravelMode.WALKING, unitSystem:gm.DirectionsUnitSystem.METRIC, region:"AU"};
  else request={origin:strStartAddr, destination:strEndAddr, travelMode:gm.DirectionsTravelMode.BICYCLING, unitSystem:gm.DirectionsUnitSystem.METRIC, region:"AU"};
  directionsService.route(request,function(response,status){
    if(status==gm.DirectionsStatus.OK){
      directionsDisplay.setDirections(response);
      d.getElementById('dir').style.display="block";
    }
    else{
      d.getElementById('dir').style.display="none";
      alert('No Google directions available');
    }
  });
}//Copyright (c) 2012 B Leadbeater, Australia