Sencha touch, fieldset onChange Listener
<p>I just want to <code>console.log('some info')</code> everytime when user selects an option on the fieldset, I tried this doesn't work for me.</p>

<pre><code>                    {
                    xtype: 'fieldset', 
                    items: [{
                            id: 'selVehiclename',
                            xtype: 'selectfield', 
                            store:'itemvehicles',
                            valueField:'itemID',       
                            displayField: 'name'                                 
                            }],
                    listeners:{
                         change: function(slider, thumb, obj1, val) 
                         {
                             console.log('some info');
                         }
                    }
                }, 
</code></pre>