diff --git a/web/gui/src/main/webapp/app/view/topo/topoSelect.js b/web/gui/src/main/webapp/app/view/topo/topoSelect.js
index 03a826f..a27a6f5 100644
--- a/web/gui/src/main/webapp/app/view/topo/topoSelect.js
+++ b/web/gui/src/main/webapp/app/view/topo/topoSelect.js
@@ -35,10 +35,14 @@
      */
 
     // internal state
-    var hovered,                // the node over which the mouse is hovering
-        selections = {},        // currently selected nodes (by id)
-        selectOrder = [],       // the order in which we made selections
+    var hovered, selections, selectOrder, consumeClick;
+
+    function setInitialState () {
+        hovered = null;         // the node over which the mouse is hovering
+        selections = {};        // currently selected nodes (by id)
+        selectOrder = [];       // the order in which we made selections
         consumeClick = false;   // used to coordinate with SVG click handler
+    }
 
     // ==========================
 
@@ -286,6 +290,7 @@
 
             function initSelect(_api_) {
                 api = _api_;
+                setInitialState();
             }
 
             function destroySelect() { }