added alternative version with google maps api v3. very basic support without the possibility to add new nodes

1 files changed, 856 insertions, 0 deletions

diff --git a/map3.js b/map3.js
new file mode 100644
index 0000000..eff52d1
--- /dev/null
+++ b/map3.js
@@ -0,0 +1,856 @@
+var map = null;
+var linkinfo;
+var physicalMaxLevel;
+var geocoder = null;
+//##//var reloadcon = null;
+var countboxText = null;
+var overlays = new Array();
+overlays["new"] = null;
+overlays["ruler"] = new Array();
+overlays["locations"] = new Array();
+overlays["links"] = new Array();
+var locations = new Array();
+var links = new Array();
+var lines = new Array();
+var markers = new Array();
+
+function initialize(lat, lng, res) {
+  if (!checkBrowser()) {
+    return;
+  }
+  $('#visibox').hide();
+  $('#southeastcontainer').hide();
+  google.maps.visualRefresh=true;
+        var mapOptions = {
+          center: new google.maps.LatLng(lat, lng),
+          zoom: res,
+          mapTypeId: google.maps.MapTypeId.ROADMAP,
+          mapTypeControlOptions: {
+            mapTypeIds: [google.maps.MapTypeId.ROADMAP, google.maps.MapTypeId.HYBRID , google.maps.MapTypeId.SATELLITE , google.maps.MapTypeId.TERRAIN ],
+	    style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR,
+	  }
+        };
+  map = new google.maps.Map(document.getElementById("map"),
+    mapOptions);
+//##//  map.disableDoubleClickZoom();
+//##//  map.enableScrollWheelZoom();
+
+//  map.removeMapType(G_HYBRID_MAP);
+//  map.removeMapType(G_SATELLITE_MAP);
+//##//  map.addMapType(G_PHYSICAL_MAP);
+//  map.setMapType(G_HYBRID_MAP);
+
+//##//  deaktiviert 2013112 goole maps api v3 incompatibel
+//##//  // openStreetMap
+//##//  var copyOSM = new GCopyrightCollection("<a href=\"http://www.openstreetmap.org/\">OpenStreetMap</a>");
+//##//  var copyOGDGraz = new GCopyrightCollection("Open Government Data Graz");
+//##//  copyOSM.addCopyright(new GCopyright(1, new GLatLngBounds(new google.maps.LatLng(-90,-180), new google.maps.LatLng(90,180)), 0, " "));
+//##//  var tilesOsmarender = new GTileLayer(copyOSM, 1, 17, {tileUrlTemplate: 'http://tah.openstreetmap.org/Tiles/tile/{Z}/{X}/{Y}.png'});
+//##//  var mapOsmarender = new GMapType([tilesOsmarender], G_NORMAL_MAP.getProjection(), "openSM", {urlArg: 'y'});
+//##//  map.addMapType(mapOsmarender);
+//##//  var tilesMapnik = new GTileLayer(copyOSM, 1, 17, {tileUrlTemplate: 'http://tile.openstreetmap.org/{Z}/{X}/{Y}.png'});
+//##//  var mapMapnik = new GMapType([tilesMapnik],     G_NORMAL_MAP.getProjection(), "Mapnik", {urlArg: 'x'});
+//##//  map.addMapType(mapMapnik);
+//  var tilesOpenGeoServer = new GTileLayer(copyOGDGraz, 1, 17, {tileUrlTemplate: 'http://services.opengeoserver.org/tiles/1.0.0/globe.aerial_EPSG3857/${Z}/${X}/${Y}.png?origin=nw'});
+//  var mapOpenGeoServer = new GMapType([tilesOpenGeoServer], G_NORMAL_MAP.getProjection(), "OpenGeoServer");
+//  map.addMapType(mapOpenGeoServer);
+
+//##//  physicalMaxLevel = map.getCurrentMapType().getMaximumResolution();
+//##//  if(res > physicalMaxLevel) {
+//##//    map.setMapType(G_NORMAL_MAP);
+//##//    map.setZoom(res);
+//##//  }
+//##//  map.addControl(new RulerControl());
+//##//  reloadcon = new reloadcontrol();
+//##//  map.addcontrol(reloadcon);
+//##//  map.addControl(new GSmallMapControl(), new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(10,20)));
+//##//  map.addControl(new GMapTypeControl(), new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(50,10)));
+
+  google.maps.event.addListener(map, "addoverlay", onAddOverlay);    
+  google.maps.event.addListener(map, "zoomend", onZoom);    
+  google.maps.event.addListener(map, "click", onMapClick);    
+  
+  lineinfo = document.createElement("div");
+  document.getElementById("map").appendChild(lineinfo);
+  lineinfo.style.visibility = "hidden"
+  
+  dnsinfo = document.createElement("div");
+  document.getElementById("map").appendChild(dnsinfo);
+  dnsinfo.style.visibility = "hidden"
+  
+//##//  var mt = map.getMapTypes();
+//##//  for (var i=0; i<mt.length; i++) {
+//##//    mt[i].getMinimumResolution = function() {return 0;}
+//##//    mt[i].getMaximumResolution = function() {return 22;}
+//##//  }
+
+//##//  geocoder = new google.maps.Geocoder();
+
+  var countbox = document.getElementById("countbox");
+  countboxText = document.createTextNode("Aktiv: 0");
+  countbox.appendChild(countboxText);
+
+//##//  reloadcon.started();
+//##//  GDownloadUrl("data.php", onData);
+  $.get( "data.php",onData);
+}
+
+function checkBrowser() {
+//##//  if (GBrowserIsCompatible()) {
+    return true;
+//##//  } else {
+//##//    var html = '<center><h3 style="color:red">Dein Browser ist leider nicht kompatibel mit der Google Maps API!</h3>';
+//##//    html += 'Ich würde vorschlagen du surfst auf: '
+//##//    html += '<a href="http://www.mozilla.com/firefox/">http://www.mozilla.com/firefox/</a></center>';
+//##//    document.getElementById("map").innerHTML = html;
+//##//    return false;
+//##//  }
+}
+
+function onAddOverlay(overlay) {
+  switch(overlay.overlaytype) {
+    case "location": overlays["locations"].push(overlay); break;
+    case "link": overlays["links"].push(overlay); break;
+    case "new": {
+      if(overlays["newmarker"]) {
+        map.removeOverlay(overlays["newmarker"]);
+      }
+      overlays["newmarker"] = overlay; 
+      break;
+    }
+    case "ruler": {
+      if(overlays["ruler"][overlay.overlaysubtype]) {
+        map.removeOverlay(overlays["ruler"][overlay.overlaysubtype]);
+      }
+      overlays["ruler"][overlay.overlaysubtype] = overlay;
+      break;
+    }
+  }
+}
+
+function onZoom(oldLevel, newLevel)
+{
+  if(newLevel > physicalMaxLevel) {
+  //  map.setMapType(G_SATELLITE_MAP);
+  }
+}
+
+function onMapClick(overlay, point)
+{
+  if(!overlay) {
+    map.setCenter(point);
+    setNewMarker(point);
+  }
+}
+
+//##//function onData(data, responseCode) {
+//##//  if (responseCode < 200 || responseCode > 299) {
+//##//    reloadcon.finished();
+//##//    return alert("Fehler: Konnte die Daten nicht laden!\n(Server Antwort-Code: " + responseCode + ")");
+//##//  }
+//##//  reloadcon.loaded();
+function onData(data) {
+//##//  xmlData = GXml.parse(data);
+//##//alert("Data Loaded: " +data.slice( 0, 100 ));
+  //##//xmlData = $.parseXML(data.responseText);
+  xmlData = data;
+
+  for(var loc in overlays["locations"]) {
+    map.removeOverlay(overlays["locations"][loc]);
+  }
+  overlays["locations"] = [];
+  locations = [];
+  if (xmlData) {
+    drawLocations(xmlData);
+  }
+
+  for(var link in overlays["links"]) {
+    map.removeOverlay(overlays["links"][link]);
+  }
+  overlays["links"] = [];
+  links = [];
+  if (xmlData) {
+    drawLinks(xmlData);
+  }
+
+  if (xmlData) {
+	  var element = xmlData.getElementsByTagName("count");
+	  var count = element[0].getAttribute("number");
+	  countboxText.data = "Aktiv: " + count;
+  }
+  
+//##//  reloadcon.finished();
+}
+
+function drawLocations(xmlData) {
+  var element = xmlData.getElementsByTagName("node");
+  for (var i = 0; i< element.length; i++) {
+    var id = parseInt(element[i].getAttribute("id"));
+    locations[id] = new Location(element[i]);
+
+    var marker = new google.maps.Marker({position: locations[id].point, icon: makeIcon(locations[id].state)});
+    marker.overlaytype = "location";
+    marker.locid = id;
+    google.maps.event.addListener(marker, "click", onLocationClick);
+//##//    map.addOverlay(marker);
+    marker.setMap(map);
+    markers.push(marker);
+  }
+  if(document.visibleform.elements["offline"].checked) {
+    toggleVisible("offline");
+  }
+  if(document.visibleform.elements["online"].checked) {
+    toggleVisible("online");
+  }
+}
+
+function Location(element) {
+  var location = new Object();
+  location.name = element.getAttribute("name");
+  var lat  = parseFloat(element.getAttribute("lat"));
+  var lng  = parseFloat(element.getAttribute("lng"));
+  location.point = new google.maps.LatLng(lat, lng);
+  location.pixel_x = parseInt(element.getAttribute("pixel_x"));
+  location.pixel_y = parseInt(element.getAttribute("pixel_y"));
+  location.state = element.getAttribute("state");
+  location.gallery_link = element.getAttribute("gallery_link");
+  location.dnsnames = element.getAttribute("router_links");
+
+  return location;
+}
+
+function onLocationClick(latlng) {
+  var html = '<div class="locinfo">';
+  html += '<b>' + locations[this.locid].name + '</b>';
+  html += '<table class="locinfo">';
+  html += '<tr><td>Breitengrad:</td><td>&nbsp;</td><td>' + convertCoords(locations[this.locid].point.lat()) + '</td></tr>';
+  html += '<tr><td>Längengrad:</td><td>&nbsp;</td><td>' + convertCoords(locations[this.locid].point.lng()) + '</td></tr>';
+  html += '<tr><td>Datenbank:</td><td>&nbsp;</td><td><a href="http://manman.graz.funkfeuer.at/location/show/' + this.locid + '" target="_blank">Link-Database</td></tr>';
+  html += '<tr><td>Smokeping:</td><td>&nbsp;</td><td><a href="http://stats.graz.funkfeuer.at/smokeping/?target=Funkfeuer.' + locations[this.locid].name + '" target="_blank">Link-Smokeping</td></tr>';
+  if(locations[this.locid].gallery_link) {
+    html += '<tr><td>Galerie:</td><td>&nbsp;</td><td><a href="' + locations[this.locid].gallery_link + '" target="_blank">Link-Galerie/Knoten</td></tr>';
+  } else {
+    html += '<tr><td>Galerie:</td><td>&nbsp;</td><td><a href="http://gallery.funkfeuer.at/v/Graz/Knoten/" target="_blank">Link-Galerie</td></tr>';
+  }
+  if (locations[this.locid].dnsnames){
+    var dnsname = locations[this.locid].dnsnames.split(";");
+    for (var i = 0;i < dnsname.length; ++i){
+      if (dnsname[i]!==""){
+        if(dnsname[i].indexOf(" (")>=0) {
+          link=dnsname[i].substring(0,dnsname[i].indexOf(" ("));
+        } else {
+        link=dnsname[i];
+        }
+        html += '<tr><td> Router:</td><td>&nbsp;</td><td><a href="http://' + link+ '.ext.graz.funkfeuer.at/" target="_blank">'+dnsname[i]+'</td></tr>';
+      }
+    }                                                                              
+  } 
+  html += '</table>';
+  html += '</div>';
+  var infowindow = new google.maps.InfoWindow({
+		        content: html
+			  });
+  infowindow.open(map,this);
+//##//  this.openInfoWindowHtml(html);
+}
+
+function onLineClick(line,latlng) {
+//  var html ='<div id="linkbox" class="box">';
+  var html ='<div class="locinfo">';
+  html += '<b>'+line.name+'</b>';
+  html += '<table class="linkinfo">';
+  if (line.dnsfrom){
+    var dnsfrom = line.dnsfrom.split(";");
+    for (var i = 0;i < dnsfrom.length; ++i){
+      if(dnsfrom[i].indexOf(" (")>=0) {
+        link=dnsfrom[i].substring(0,dnsfrom[i].indexOf(" ("));
+        } else {
+        link=dnsfrom[i];
+      }
+      html += '<tr><td> Router:</td><td>&nbsp;</td><td><a href="http://' + link+ '.ext.graz.funkfeuer.at/" target="_blank">'+dnsfrom[i]+'</td></tr>';
+    }
+  } 
+    
+  if(line.dnsto){
+    var dnsto = line.dnsto.split(";");
+    for (var i = 0;i < dnsto.length; ++i){
+      if(dnsto[i].indexOf(" (")>=0) {
+        link=dnsto[i].substring(0,dnsto[i].indexOf(" ("));
+        } else {
+        link=dnsto[i];
+      }
+      html += '<tr><td> Router:</td><td>&nbsp;</td><td><a href="http://' + link+ '.ext.graz.funkfeuer.at/" target="_blank">'+dnsto[i]+'</td></tr>';
+    }
+  }
+  html += '</table>';
+  html += '</div>';
+  map.openInfoWindowHtml(latlng,html);
+}
+
+function convertCoords(x) {
+  var deg = Math.floor(x);
+  var min = (x - deg) * 60;
+  var sec = (min - Math.floor(min)) * 60;
+  return deg + "° " + Math.floor(min) + "' " + sec.toFixed(0) + "\"";
+}
+
+function drawLinks(xmlData) {
+  var element = xmlData.getElementsByTagName("link");
+  for (var i = 0; i< element.length; i++) {
+    var state;
+    var color;
+    var textcolor;
+    var width;
+    state="Unbekannt"
+    var id = element[i].getAttribute("from") + "-" + element[i].getAttribute("to");
+    links[id] = new Link(element[i]);
+     
+    var line = new google.maps.Polyline({path: [links[id].frompoint, links[id].topoint], strokeColor: makeColor(Math.floor(links[id].value)), strokeWeight: makeWeight(Math.floor(links[id].value))});
+    line.name = id;
+    line.textcolor = textcolor;
+    line.state = state;
+    line.overlaytype = "link";
+    line.linkid = id;
+    line.dnsfrom = element[i].getAttribute("dnsfrom");
+    line.dnsto = element[i].getAttribute("dnsto");
+    line.Routerfrom = element[i].getAttribute("from");
+    line.Routerto = element[i].getAttribute("to");
+    google.maps.event.addListener(line, "mouseout", function() { lineinfo.style.visibility = "hidden"; });    
+    google.maps.event.addListener(line, "mouseover", function(point) { showLinkInfo(this, point)});
+    google.maps.event.addListener(line, "click", function(point){onLineClick(this,point)});
+//    google.maps.event.addListener(line, "click", function(latlng){map.openInfoWindowHtml(latlng, message)});     
+  
+//##//    map.addOverlay(line);
+    line.setMap(map);
+  } 
+  if(document.visibleform.elements["defaultroute"].checked) {
+    toggleVisible("defaultroute");
+  }
+  if(document.visibleform.elements["bad"].checked) {
+    toggleVisible("bad");
+  }
+  if(document.visibleform.elements["middle"].checked) {
+    toggleVisible("middle");
+  }
+  if(document.visibleform.elements["good"].checked) {
+    toggleVisible("good");
+  }
+  if(document.visibleform.elements["tunnel"].checked) {
+    toggleVisible("tunnel");
+  }
+    if(document.visibleform.elements["2.4channel"].checked) {
+    toggleVisible("2.4channel");
+  }
+  if(document.visibleform.elements["channel1"].checked) {
+    toggleVisible("channel1");
+  }
+  if(document.visibleform.elements["channel2"].checked) {
+    toggleVisible("channel2");
+  }
+  if(document.visibleform.elements["channel3"].checked) {
+    toggleVisible("channel3");
+  }
+  if(document.visibleform.elements["channel4"].checked) {
+    toggleVisible("channel4");
+  }
+  if(document.visibleform.elements["channel5"].checked) {
+    toggleVisible("channel5");
+  }
+  if(document.visibleform.elements["channel6"].checked) {
+    toggleVisible("channel6");
+  }
+  if(document.visibleform.elements["channel7"].checked) {
+    toggleVisible("channel7");
+  }
+  if(document.visibleform.elements["channel8"].checked) {
+    toggleVisible("channel8");
+  }
+  if(document.visibleform.elements["channel9"].checked) {
+    toggleVisible("channel9");
+  }
+  if(document.visibleform.elements["channel10"].checked) {
+    toggleVisible("channel10");
+  }
+  if(document.visibleform.elements["channel11"].checked) {
+    toggleVisible("channel11");
+  }
+  if(document.visibleform.elements["channel12"].checked) {
+    toggleVisible("channel12");
+  }
+  if(document.visibleform.elements["channel13"].checked) {
+    toggleVisible("channel13");
+  }
+  if(document.visibleform.elements["5channel"].checked) {
+    toggleVisible("5channel");
+  }
+  if(document.visibleform.elements["undef"].checked) {
+    toggleVisible("undef"); 
+  }
+}
+function showLinkInfo(link, point) {
+  var html = '<div id="linkbox" class="box" style="border-color: ' + link.color + '">';
+  if((links[link.name].frequence !== "undef") && (links[link.name].frequence !== "")){
+     html += '<strong>Frequenz:</strong> ' + links[link.name].frequence + '<br />';
+  } else {
+     html += '<strong>Frequenz:</strong> undef <br />';
+  } 
+  if(links[link.name].channel !== "undef") {
+    html += '<strong>Kanal:</strong> ' + links[link.name].channel + '<br />';
+  } else {
+    html += '<strong>Kanal:</strong> undef <br />';
+  }
+  if (links[link.name].value !==-1){
+    html += '<strong>Mittlerer ETX:</strong> ' + links[link.name].value  + '<br />';
+  } else {
+    html += '<strong>Mittlerer ETX:</strong> undef <br />';
+  }
+  html += '<strong>Name:</strong> ' + link.name  + '<br />';
+//##//  html += '<strong>Länge:</strong> ' + link.getLength().toFixed(0) + ' m<br />';
+  html += '</div>';
+  lineinfo.innerHTML = html;
+//##//  var pos = new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(180, 0));
+
+//##//  pos.apply(lineinfo);
+  lineinfo.style.visibility = "visible";
+}
+
+function Link(element) {
+  var link = new Object();
+  link.from = element.getAttribute("from");
+  link.fromid = parseInt(element.getAttribute("fromid"));
+  var lat  = parseFloat(element.getAttribute("latfrom"));
+  var lng  = parseFloat(element.getAttribute("lngfrom"));
+  link.frompoint = new google.maps.LatLng(lat, lng);
+
+  link.to = element.getAttribute("to");
+  link.toid = parseInt(element.getAttribute("toid"));
+  lat  = parseFloat(element.getAttribute("latto"));
+  lng  = parseFloat(element.getAttribute("lngto"));
+  link.topoint = new google.maps.LatLng(lat, lng);
+
+  link.value = parseFloat(element.getAttribute("value"));
+  link.channel = element.getAttribute("channel");
+  link.defaultroute = element.getAttribute("defaultroute");
+  link.frequence = element.getAttribute("frequence");
+  return link;
+}
+
+function makeColor(value) {
+  switch(value) {
+    case -1: return '#0000FF';
+    case 0: return '#FF0000';
+    case 1: return '#33bb33';
+    case 2: return '#66bb33';
+    case 3: return '#ff9900';
+    case 4: return '#ffcc00';
+    case 5: return '#cccc33';
+    default: return '#666666'
+  }
+}
+
+function makeWeight(value) {
+  switch(value) {
+    case -1: return 2;
+    case 0: return 1;
+    case 1: return 3;
+    case 2: return 2;
+    case 3: return 1;
+    case 4: return 1;
+    case 5: return 1;
+    default: return 1;
+  }
+}
+
+function makeIcon(type) {
+//##//  var icon = new GIcon();
+  var url;
+  switch(type) {
+    case 'ruler': url = "./img/marker_blue.png"; break;
+    case 'newnode': url = "./img/marker_darkred.png"; break;
+    case 'online': url = "./img/marker_online.png"; break;
+    case 'tunnel': url = "./img/marker_tunnel.png"; break;
+    case 'offline': url = "./img/marker_offline.png"; break;
+  }
+  return {
+	  'url': url,
+	  // This marker is 20 pixels wide by 32 pixels tall.
+	  size: new google.maps.Size(12, 20),
+	  // The origin for this image is 0,0.
+	  origin: new google.maps.Point(0,0),
+	  // The anchor for this image is the base of the flagpole at 0,32.
+	  anchor: new google.maps.Point(6, 20)
+  };
+//##//  switch(type) {
+//##//    case 'ruler': icon.image = "./img/marker_blue.png"; break;
+//##//    case 'newnode': icon.image = "./img/marker_darkred.png"; break;
+//##//    case 'online': icon.image = "./img/marker_online.png"; break;
+//##//    case 'tunnel': icon.image = "./img/marker_tunnel.png"; break;
+//##//    case 'offline': icon.image = "./img/marker_offline.png"; break;
+//##//  }
+//##//  icon.iconSize = new GSize(12,20);
+//##//  icon.iconAnchor = new GPoint(6,20);
+//##//  icon.infoWindowAnchor = new GPoint(5,1);
+//##//  return icon
+}
+
+function toggleVisible(element) {
+  var elements = Object();
+  if (element=='bad' || element=='middle' || element=='good'){
+    document.visibleform.elements["2.4channel"].checked=false;
+    document.visibleform.elements["channel1"].checked=false;
+    document.visibleform.elements["channel2"].checked=false;
+    document.visibleform.elements["channel3"].checked=false;
+    document.visibleform.elements["channel4"].checked=false;
+    document.visibleform.elements["channel5"].checked=false;
+    document.visibleform.elements["channel6"].checked=false;
+    document.visibleform.elements["channel7"].checked=false;
+    document.visibleform.elements["channel8"].checked=false;
+    document.visibleform.elements["channel9"].checked=false;
+    document.visibleform.elements["channel10"].checked=false;
+    document.visibleform.elements["channel11"].checked=false;
+    document.visibleform.elements["channel12"].checked=false;
+    document.visibleform.elements["channel13"].checked=false;
+    document.visibleform.elements["5channel"].checked=false;
+    document.visibleform.elements["undef"].checked=false;    
+  }
+    if (element=='2.4channel'){
+    document.visibleform.elements["channel1"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel2"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel3"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel4"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel5"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel6"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel7"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel8"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel9"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel10"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel11"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel12"].checked=document.visibleform.elements["2.4channel"].checked;
+    document.visibleform.elements["channel13"].checked=document.visibleform.elements["2.4channel"].checked;
+  }
+  switch(element) {
+    case 'defaultroute': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].defaultroute == '0');"); break;
+    case 'offline': elements.overlays = overlays["locations"]; elements.select = new Function("id", "return (locations[overlays['locations'][id].locid].state == 'offline');"); break;
+    case 'online': elements.overlays = overlays["locations"]; elements.select = new Function("id", "return (locations[overlays['locations'][id].locid].state != 'offline');"); break;
+    case 'bad': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value >= 6);"); break;
+    case 'middle': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value >= 3 && links[overlays['links'][id].linkid].value < 6);"); break;
+    case 'good': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value >= 0 && links[overlays['links'][id].linkid].value < 3);"); break;
+    case 'tunnel': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].value == -1);"); break;
+    case 'channel1': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '1');"); break;
+    case 'channel2': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '2');"); break;
+    case 'channel3': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '3');"); break;
+    case 'channel4': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '4');"); break;
+    case 'channel5': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '5');"); break;
+    case 'channel6': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '6');"); break;
+    case 'channel7': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '7');"); break;
+    case 'channel8': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '8');"); break;
+    case 'channel9': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '9');"); break;
+    case 'channel10': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '10');"); break;
+    case 'channel11': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '11');"); break;
+    case 'channel12': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '12');"); break;
+    case 'channel13': document.visibleform.elements["2.4channel"].checked=false; elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].channel == '13');"); break;
+    case 'undef': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].frequence == 'undef');"); break;
+    case '2.4channel': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].frequence == '2.4');"); break;
+    case '5channel': elements.overlays = overlays["links"]; elements.select = new Function("id", "return (links[overlays['links'][id].linkid].frequence !=='2.4' && links[overlays['links'][id].linkid].frequence !=='undef');"); break;
+
+  }
+
+  if(document.visibleform.elements[element].checked) {
+    hideElements(elements);
+  } else {
+    showElements(elements);
+  }
+}
+
+function hideElements(elements) {
+  for(var o in elements.overlays)
+    if(elements.select(o)) elements.overlays[o].hide();
+}
+
+function showElements(elements) {
+  for(var o in elements.overlays)
+    if(elements.select(o)) elements.overlays[o].show();
+}
+
+function centerAndZoom(lat, lng) {
+  map.setCenter(new google.maps.LatLng(lat, lng), 17);
+}
+
+function addNewNodeText(point) {
+  var x_startpoint = 4080;
+  var lng_startpoint = 15.43844103813;
+  var dx_dlng = 50675.5176;
+  var y_startpoint = 4806;
+  var lat_startpoint = 47.07177327969;
+  var dy_dlat = 75505.521;
+
+  var pixel_x = parseInt(Math.floor(x_startpoint + (point.x - lng_startpoint) * dx_dlng));
+  var pixel_y = parseInt(Math.floor(y_startpoint - (point.y - lat_startpoint) * dy_dlat));
+
+  var link = 'https://manman.graz.funkfeuer.at/location/new?';
+  link += 'z_x=' + Math.floor(pixel_x % 100) + '&z_y=' + Math.floor(pixel_y % 100);
+  link += '&c='  + Math.floor(pixel_x / 100) + '&r='   + Math.floor(pixel_y / 100);
+
+  var html = '<b>Neuen Knoten eintragen<br />Nutzen sie den Zoombereich aus!</b><br /><br />';
+  html += '<table width="100%">';
+  html += '<tr><td>Breitengrad:</td><td>&nbsp;</td><td>' + convertCoords(point.y) + '</td><td>&nbsp;</td>';
+  html += '<td><form action="#" onsubmit="return false"><input type="button" value="hineinzoomen" ';
+  html += 'onclick="javascript:centerAndZoom(' + point.y + ',' + point.x + ')" /></form></td></tr>';
+  html += '<tr><td>Längengrad:</b></td><td>&nbsp;</td><td>' + convertCoords(point.x)+ '</td><td>&nbsp;</td>';
+  html += '<td><form action="#" onsubmit="return false"><input type="button" value="Standort eintragen" ';
+  html += 'onclick="window.open(\'' + link + '\')" /></form></td></tr>';
+  html += '</table>';
+  return html;
+}
+
+function setNewMarker(point) { 
+/*
+  var marker = new GMarker(point,{icon: makeIcon('newnode'), draggable: true});
+  google.maps.event.addListener(marker, "dragstart", 
+    function() {
+      this.autoclosed = true;
+      this.closeInfoWindow();
+    });
+
+  google.maps.event.addListener(marker, "dragend", 
+    function(point) {
+      this.openInfoWindowHtml(addNewNodeText(point));
+    });
+
+  google.maps.event.addListener(marker, "infowindowclose",
+    function () {
+      if(this.autoclosed == true) {
+        this.autoclosed = false;
+      } else {
+        map.removeOverlay(overlays["newmarker"]);
+        overlays["newmarker"] = null;
+      }
+    });
+
+  marker.overlaytype = "newmarker";
+  map.addOverlay(marker);
+  marker.openInfoWindowHtml(addNewNodeText(point));
+*/
+		var marker = new GMarker(point,makeIcon('newnode'));
+        	google.maps.event.addListener(marker,"infowindowclose",function () {
+                  map.removeOverlay(marker);
+        	});
+       
+        	map.addOverlay(marker);
+        	marker.openInfoWindowHtml(addNewNodeText(point));
+}
+
+function fflogin(username, password) {
+  var postbody = "username=" + encodeURIComponent(username) + "&password=" + encodeURIComponent(password) + "&login=Einloggen#";
+//##//  GDownloadUrl("login.php", onFFLogin, postbody);
+}
+
+function onFFLogin(data, responseCode) {
+  if (responseCode < 200 || responseCode > 299) {
+    return alert("Fehler: Konnte die Daten nicht laden!\n(Server Antwort-Code: " + responseCode + ")");
+  }
+  xmlData = GXml.parse(data);
+
+  var error = xmlData.getElementsByTagName("error");
+  if(error.length > 0) {
+    alert(error[0].getAttribute("string"));
+  }
+  else {
+    var status = xmlData.getElementsByTagName("status");
+    if(status[0].getAttribute("code") == "logged_in") {
+      var username = xmlData.getElementsByTagName("username")[0].getAttribute("name");
+      showFFLogout(username);
+
+//##//      reloadcon.started();
+//##//      GDownloadUrl("data.php", onData);
+    }
+  }
+}
+
+function showFFLogin() {
+  var html = '<form action="#" onsubmit="fflogin(this.username.value, this.password.value); this.reset(); return false">';
+  html += '<table><tr>';
+  html += '<td>Benutzername:</td>';
+  html += '<td><input name="username" size="23" type="text" tabindex="1"/></td>';
+  html += '<td rowspan="2" valign="bottom"><input name="login" type="submit" id="login" value="Einloggen" tabindex="3"></td>';
+  html += '</tr><tr>';
+  html += '<td>Passwort:</td>';
+  html += '<td><input name="password" type="password" tabindex="2" /></td>';
+  html += '</tr></table></form>';
+
+  document.getElementById("loginbox").innerHTML = html;
+}
+
+function fflogout() {
+  var postbody = "logout=Ausloggen#";
+//##//  GDownloadUrl("login.php", onFFLogout, postbody);
+}
+
+function onFFLogout(data, responseCode) {
+  if (responseCode < 200 || responseCode > 299) {
+    return alert("Fehler: Konnte die Daten nicht laden!\n(Server Antwort-Code: " + responseCode + ")");
+  }
+  xmlData = GXml.parse(data);
+
+  var error = xmlData.getElementsByTagName("error");
+  if(error.length > 0) {
+    alert(error[0].getAttribute("string"));
+  }
+  else {
+    showFFLogin();
+
+//##//    reloadcon.started();
+//##//    GDownloadUrl("data.php", onData);
+  }
+}
+
+function showFFLogout(username) {
+  var html = '<form action="#" onsubmit="fflogout(); return false">';
+  html += 'Sie sind eingeloggt als:</br >';
+  html += '<b>'+username+'</b>&nbsp;&nbsp;&nbsp;'
+  html += '<input name="login" type="submit" id="logout" value="Ausloggen"></form>';
+
+  document.getElementById("loginbox").innerHTML = html;
+}
+
+function showAddress(address) {
+  if (geocoder) {
+//    address += ", Graz, Austria";
+    geocoder.getLatLng(address, 
+      function(point) {
+        if (!point) {
+          alert(address + " nicht gefunden");
+        } else {
+          map.setCenter(point);
+          setNewMarker(point);
+        }
+      });
+  }
+}
+
+//##//function ReloadControl() {
+//##//}
+//##//
+//##//ReloadControl.prototype = new GControl();
+//##//
+//##//ReloadControl.prototype.initialize = function(map) {
+//##//  var container = document.createElement("div");
+//##//  var btnDiv = document.createElement("div");
+//##//  btnDiv.className = "btn";
+//##//  btnDiv.id = "reloadbtn";
+//##//  container.appendChild(btnDiv);
+//##//  btnText = document.createTextNode("Daten neu laden");
+//##//  btnDiv.appendChild(btnText);
+//##//  google.maps.event.addDomListener(btnDiv, "click", function() {
+//##//      reloadcon.started(); 
+//##//      GDownloadUrl("data.php", onData);
+//##//    });
+//##//
+//##//  map.getContainer().appendChild(container);
+//##//  return container;
+//##//}
+//##//
+//##//ReloadControl.prototype.started = function() {
+//##//  btnText.data = "wird geladen...";
+//##//}
+//##//
+//##//ReloadControl.prototype.loaded = function() {
+//##//  btnText.data = "wird verarbeitet...";
+//##//}
+//##//
+//##//ReloadControl.prototype.finished = function() {
+//##//  btnText.data = "Daten neu laden";
+//##//}
+//##//
+//##//ReloadControl.prototype.getDefaultPosition = function() {
+//##//  return new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(7, 7));
+//##//}
+
+
+//##//function RulerControl() {
+//##//}
+//##//
+//##//RulerControl.prototype = new GControl();
+//##//
+//##//RulerControl.prototype.initialize = function(map) {
+//##//  var btnText;
+//##//  var distBoxOuter;
+//##//  var distBox;
+//##//  var distText;
+//##//
+//##//  function measure() {
+//##//    if(overlays["ruler"]["marker1"] && overlays["ruler"]["marker2"]) {
+//##//      var line = [overlays["ruler"]["marker1"].getPoint(), overlays["ruler"]["marker2"].getPoint()];
+//##//      var dist = overlays["ruler"]["marker1"].getPoint().distanceFrom(overlays["ruler"]["marker2"].getPoint());
+//##//      dist = dist.toFixed(0)+" m";
+//##//      if(parseInt(dist) > 10000) {
+//##//        dist = (parseInt(dist)/1000).toFixed(1) + " km";
+//##//      }
+//##//      distText.data = "Entfernung: " + dist;
+//##//      var poly = new GPolyline(line,'#FFFF00', 3, 1)
+//##//      poly.overlaytype = "ruler";
+//##//      poly.overlaysubtype = "line";
+//##//      map.addOverlay(poly);
+//##//    }
+//##//  }
+//##//
+//##//  function clr(){
+//##//    for(var o in overlays["ruler"]) {
+//##//      map.removeOverlay(overlays["ruler"][o]);
+//##//    }
+//##//    overlays["ruler"] = [];
+//##//    distBox.style.visibility = "hidden";
+//##//    btnText.data = "Entfernung messen";
+//##//  }
+//##//
+//##//  var container = document.createElement("div");
+//##//  var btnDiv = document.createElement("div");
+//##//  btnDiv.className = "btn";
+//##//  btnDiv.id = "rulerbtn";
+//##//  container.appendChild(btnDiv);
+//##//  btnText = document.createTextNode("Entfernung messen");
+//##//  btnDiv.appendChild(btnText);
+//##//  google.maps.event.addDomListener(btnDiv, "click", function() {
+//##//      for(var o in overlays["ruler"]) {
+//##//        if(overlays["ruler"][o]) {
+//##//          clr();
+//##//          return;
+//##//        }
+//##//      }
+//##//    
+//##//      btnText.data = "Messung beenden";
+//##//      distText.data = "Entfernung: 0 m";
+//##//      distBox.style.visibility = "visible";
+//##//
+//##//      var pnt = map.getCenter();
+//##//      marker1 = new GMarker(pnt, {icon: makeIcon('ruler'), draggable: true});
+//##//      marker1.overlaytype = "ruler";
+//##//      marker1.overlaysubtype = "marker1";
+//##//      map.addOverlay(marker1);
+//##//
+//##//      marker2 = new GMarker(pnt, {icon: makeIcon('ruler'), draggable: true});
+//##//      marker2.overlaytype = "ruler";
+//##//      marker2.overlaysubtype = "marker2";
+//##//      map.addOverlay(marker2);
+//##//
+//##//      google.maps.event.addListener(marker1, "drag", function() { measure(); });
+//##//      google.maps.event.addListener(marker2, "drag", function() { measure(); });
+//##//    });
+//##//  distBoxOuter = document.createElement("div");
+//##//  distBoxOuter.id = "distboxouter";
+//##//  distBox = document.createElement("div");
+//##//  distBox.className = "box";
+//##//  distBox.id = "distbox";
+//##//  distBox.style.visibility = "hidden";
+//##//  distText = document.createTextNode("Entfernung: ? m");
+//##//  distBox.appendChild(distText);
+//##//  distBoxOuter.appendChild(distBox);
+//##//  document.getElementById("map").appendChild(distBoxOuter);
+//##//
+//##//  map.getContainer().appendChild(container);
+//##//  return container;
+//##//}
+//##//
+//##//RulerControl.prototype.getDefaultPosition = function() {
+  //##//return new GControlPosition(G_ANCHOR_BOTTOM_RIGHT, new GSize(7, 7));
+//##//}