// Date Picker
Ext.onReady(function(){
    new Ext.form.DateField({
        enableKeyEvents: true,
        applyTo : 'birthday',
        startDay: 1,
        //format: 'd/m/Y',
        listeners : {
            keypress: function(f, e){
                if (e.getKey() == e.DOWN){
                    f.onTriggerClick();
                }
            }
        }
    });
});