Remove read of "top" property (always undefined)

1 files changed, 1 insertions, 1 deletions

diff --git a/js/lib/blocks.js b/js/lib/blocks.js
index 476eb28..279fa54 100644
--- a/js/lib/blocks.js
+++ b/js/lib/blocks.js
@@ -553,7 +553,7 @@ var incorporateLine = function(ln) {
 // parent of the closed block.
 var finalize = function(block, lineNumber) {
     var pos;
-    var above = block._parent || this.top;
+    var above = block._parent;
     // don't do anything if the block is already closed
     if (!block._open) {
         return 0;