--- a/war/scripts/sti/STIMap.js	Fri Dec 14 16:32:55 2012 +0100
+++ b/war/scripts/sti/STIMap.js	Fri Dec 14 16:33:36 2012 +0100
@@ -14,6 +14,7 @@
     this.container = container; 
     this.openlayersMap;
     this.baseLayers;
+    this.overlayLayers;
     this.objectLayer;
     this.drilldownLayer;
     this.connectionLayer;
@@ -53,6 +54,8 @@
      * it includes setting up all layers of the map and defines all map specific interaction possibilities
      */
     initialize: function(){
+    	
+    	this.overlayLayers = new Array();
 
         //OpenLayers.ProxyHost = "/cgi-bin/proxy.cgi?url=";
         var map = this;
@@ -578,7 +581,6 @@
         if( this.core.props.historicMaps ){
         	this.setCanvas();
         }
-        
     },
     
     /**
@@ -1365,6 +1367,34 @@
 		this.openlayersMap.zoomTo(Math.floor(this.openlayersMap.getZoom()+0.05));
 		this.openlayersMap.setBaseLayer(this.baseLayers[index]);
 	},
+	
+	setOverlay: function(index){
+
+		if (this.overlayLayers[index] instanceof OpenLayers.Layer.Vector) {
+
+			this.openlayersMap.removeLayer(this.overlayLayers[index]);
+			this.overlayLayers[index] = null;
+			
+		} else {
+			
+			var limesLayer = new OpenLayers.Layer.Vector("KML", {
+				projection: this.openlayersMap.displayProjection,
+	            strategies: [new OpenLayers.Strategy.Fixed()],
+	            protocol: new OpenLayers.Protocol.HTTP({
+	                url: "data/overlay/limes.kml",
+	                format: new OpenLayers.Format.KML({
+	                    extractStyles: true,
+	                    extractAttributes: true
+	                })
+	            })
+	        });
+	        this.openlayersMap.addLayer(limesLayer);
+	        
+	        this.overlayLayers[index] = limesLayer;
+	        
+	        //limesLayer.setVisibility(true);
+		}
+	},		
 
 	configure: function(zoom,cLon,cLat,mapId){
 		this.openlayersMap.zoomTo(zoom);