fix

Author: adamschwartz

js/install.js

@@ -2,10 +2,12 @@
   var options = INSTALL_OPTIONS;
 
   Array.prototype.forEach.call(document.querySelectorAll('table'), function(table){
+    var firstTBodyRow, tHead;
+
     try {
       // If there’s no tHead but the first tBody row contains ths, create a tHead and move that row into it.
-      if (!table.tHead && (var firstTBodyRow = table.tBodies[0].rows[0]).children[0].tagName === 'TH') {
-        var tHead = document.createElement('thead');
+      if (!table.tHead && (firstTBodyRow = table.tBodies[0].rows[0]).children[0].tagName === 'TH') {
+        tHead = document.createElement('thead');
         tHead.appendChild(firstTBodyRow);
         table.insertBefore(tHead, table.firstChild);
       }