Roo/bootstrap/Column.js

diff --git a/Roo/bootstrap/Column.js b/Roo/bootstrap/Column.js
index 4a33128..bf573c2 100644 (file)
--- a/Roo/bootstrap/Column.js
+++ b/Roo/bootstrap/Column.js
@@ -37,10 +37,11 @@ Roo.extend(Roo.bootstrap.Column, Roo.bootstrap.Component,  {
            cls: 'column'
        }
        
+       var m=this;
        var sizes=['xs','sm','md','lg'];
        sizes.map(function(size){
-           if (this[size]) {
-               cfg.cls += ' col-' + size + '-' + this[size];
+           if (m[size]) {
+               cfg.cls += ' col-' + size + '-' + m[size];
            }
        })