Fixed typo.

src/html/js/entries.js

@@ -128,7 +128,7 @@ var EntryController = function($scope, $http, $rootScope, $filter) {
     $scope.entryRowClass = function(sold) {
         if(sold < $scope.account.authorized_overdraft) {
             return 'error';
-        } else if (esold < 0) {
+        } else if (sold < 0) {
             return 'warning';
         }
     };