Support two colors of points rendered on the map.

ShowLine.php

@@ -42,7 +42,7 @@ function PrintRoutes($line){
     }
     echo '</tbody></table>';
     echo '</div><div id="map" class="tab-pane fade" role="tabpanel">';
-    ShowMap(getPositionOfLine($line));
+    ShowMap(getPositionOfLine($line,'go'),getPositionOfLine($line,'come'));
     echo '</div></div>';
 }
 ?>