minor fixes when no selection

twmain/Tinaweb.js

@@ -989,6 +989,10 @@ var TinaWebJS = function ( sigmacanvas ) {
               selInst.MultipleSelection2( {nodes:targeted} )
             }
           }
+          // or clear previous selection
+          else {
+            cancelSelection(false)
+          }
         }
         // case with a selector circle cursor handled
         // just before, at click event

twmain/methods.js

@@ -305,7 +305,7 @@ function cancelSelection (fromTagCloud, settings) {
     TW.gui.selectionActive = false
 
     // hide all selection panels
-    if(fromTagCloud==false){
+    if(!fromTagCloud){
         // POSS give them all a common class
         $("#names").html("");
         $("#topPapers").html("");