Fix event listener removal regression introduced in 64c337beff.

src/js/pannellum.js

@@ -3053,17 +3053,17 @@ this.destroy = function() {
         dragFix.removeEventListener('dblclick', onDocumentDoubleClick, false);
         document.removeEventListener('mousemove', onDocumentMouseMove, false);
         document.removeEventListener('mouseup', onDocumentMouseUp, false);
-        container.removeEventListener('mousewheel', onDocumentMouseWheel, false);
-        container.removeEventListener('DOMMouseScroll', onDocumentMouseWheel, false);
+        uiContainer.removeEventListener('mousewheel', onDocumentMouseWheel, false);
+        uiContainer.removeEventListener('DOMMouseScroll', onDocumentMouseWheel, false);
         container.removeEventListener('mozfullscreenchange', onFullScreenChange, false);
         container.removeEventListener('webkitfullscreenchange', onFullScreenChange, false);
         container.removeEventListener('msfullscreenchange', onFullScreenChange, false);
         container.removeEventListener('fullscreenchange', onFullScreenChange, false);
         window.removeEventListener('resize', onDocumentResize, false);
         window.removeEventListener('orientationchange', onDocumentResize, false);
-        container.removeEventListener('keydown', onDocumentKeyPress, false);
-        container.removeEventListener('keyup', onDocumentKeyUp, false);
-        container.removeEventListener('blur', clearKeys, false);
+        uiContainer.removeEventListener('keydown', onDocumentKeyPress, false);
+        uiContainer.removeEventListener('keyup', onDocumentKeyUp, false);
+        uiContainer.removeEventListener('blur', clearKeys, false);
         document.removeEventListener('mouseleave', onDocumentMouseUp, false);
         dragFix.removeEventListener('touchstart', onDocumentTouchStart, false);
         dragFix.removeEventListener('touchmove', onDocumentTouchMove, false);