var map;
var geocoder;
var routeOrginal, routeTanken;
var strecke1, strecke2;

function load2() {
  map = new GMap2(document.getElementById("map"));
  map.setCenter(new GLatLng(51.091714, 10.534584), 1);
  map.addControl(new GSmallMapControl());
  geocoder = new GClientGeocoder();
  map.setZoom(5);

  map.enableContinuousZoom();
  addTankstellen();

  routeOrginal = new GDirections(map);
  routeTanken = new GDirections(map);

  document.getElementById("von").value = document.getElementById("vonP").value;
  document.getElementById("nach").value = document.getElementById("nachP").value;
  

  GEvent.addListener(routeTanken,"load", formatTankRoute);
  GEvent.addListener(routeOrginal,"load", formatOrginalRoute);

  calcOrginalRoute();
}

// addAddressToMap() is called when the geocoder returns an
// answer.  It adds a marker to the map with an open info window
// showing the nicely formatted version of the address and the country code.
function addAddressToMap(response) {
  map.clearOverlays();
  if (!response || response.Status.code != 200) {
    alert("Leider konnten wir für die angegebene Adresse keine Geodaten erzeugen!");
  } else {
    place = response.Placemark[0];
    point = new GLatLng(place.Point.coordinates[1],
                        place.Point.coordinates[0]);


    map.addOverlay(new GMarker(point));
    map.setCenter(point,8);
    map.showMapBlowup(map.getCenter(),{zoomLevel:14});

    //
    document.forms.newStation.gps1.value = point;
  }
}

// showLocation() is called when you click on the Search button
// in the form.  It geocodes the address entered into the form
// and adds a marker to the map at that location.
function showLocation() {
  var w = document.forms.newStation.ort.selectedIndex;
  var selected_text = document.forms.newStation.ort.options[w].text;
  var sel2 = selected_text.substr(6,500);

  document.getElementById("wikilink").href = "http://de.wikipedia.org/wiki/"+sel2;
  document.getElementById("wikilink").firstChild.nodeValue = "WikiLink zu "+sel2;

  var address = document.forms.newStation.strasse.value+" "+selected_text+" Deutschland";
      geocoder.getLocations(address, addAddressToMap);
     return 0;
}


// für die Bilder teuer - bis billig
function createMarker(point, text, bild, diff, size,id,beschr) {
  var icon = new GIcon();
  icon.image = "http://www.kraftstoffweb.de/develop/2.0/pictures/"+bild;
  icon.shadow = "http://labs.google.com/ridefinder/images/mm_20_shadow.png";
  icon.iconSize = new GSize(size, size);
  icon.shadowSize = new GSize(size, size);
  icon.iconAnchor = new GPoint(10, 20);
  icon.infoWindowAnchor = new GPoint(10, 10);

  var marker = new GMarker(point,icon);
  GEvent.addListener(marker, "click", function() {
    marker.openInfoWindowHtml(text);
    var laenge;
    laenge = point.toString().length;
    // Zwischenstop einfügen
    document.forms["strecke"].ts.value = "@"+point.toString().substring(1,(laenge-1));
	calcTankRoute();
    // Umwegformular füllen
	document.forms["umwegForm"].differenz.value = diff;

// Ausgewaehlte Tankstelle in Preisauswahl ebenfalls anwählen:
if (document.getElementById("tankstellenID"))
{
	document.getElementById("tankstellenID").value = id;
	document.getElementById("searchterm").value=beschr;
}

    });
  return marker;
}

function calcOrginalRoute()
{
	var vonzu1;
	routeTanken.clear();
	vonzu1 = "from:"+document.forms["strecke"].von.value+" to:"+document.forms["strecke"].nach.value;
	routeOrginal.load(vonzu1);
}


function calcTankRoute()
{
	var vonzu2;
	vonzu2 = "from:"+document.forms["strecke"].von.value+" to:"+document.forms["strecke"].ts.value+" to:"+document.forms["strecke"].nach.value;
	routeTanken.load(vonzu2);
}

function formatOrginalRoute()
{
	routeOrginal.getPolyline().setStrokeStyle({color: "#0000FF",opacity: 1,weight:4});
	strecke1 = routeOrginal.getDistance().meters;
}

function formatTankRoute()
{
	strecke2 = routeTanken.getDistance().meters;
	document.forms["umwegForm"].umweg.value = Math.round((strecke2-strecke1)/1000);
	calculate();
}



function addTankstellen()
{

	return 0;}