Change the marker color for aircraft with no recent updates.

public_html/config.js

@@ -20,6 +20,7 @@ CONST_ZOOMLVL   = 5;
 // The default marker color
 MarkerColor	  = "rgb(127, 127, 127)";
 SelectedColor = "rgb(225, 225, 225)";
+StaleColor = "rgb(190, 190, 190)";
 
 // -- Site Settings ---------------------------------------
 SiteShow    = false; // true or false

public_html/planeObject.js

@@ -53,11 +53,17 @@ var planeObject = {
 
 	// Should create an icon for us to use on the map...
 	funcGetIcon	: function() {
+			this.markerColor = MarkerColor;
 			// If this marker is selected we should make it lighter than the rest.
 			if (this.is_selected == true) {
 				this.markerColor = SelectedColor;
 			}
 
+			// If we have not seen a recent update, change color
+			if (this.seen > 15) {
+				this.markerColor = StaleColor;
+			}
+			
 			// Plane marker
             var baseSvg = {
                 planeData : "M 1.9565564,41.694305 C 1.7174505,40.497708 1.6419973,38.448747 " +