EXT与此同时隐藏field和label

function hideField(field)   
    {   
       field.disable();// for validation   
       field.hide();   
       field.getEl().up('.x-form-item').setDisplayed(false); // hide label   
    }   
  
    function showField(field)   
    {   
       field.enable();   
       field.show();   
       field.getEl().up('.x-form-item').setDisplayed(true);// show label   
    }   
        this.userTypeField=new Ext.ux.EnumField({   
                hiddenName:'userinfo.userType',   
                fieldLabel:'用户类型',   
                tableName:'userinfo',   
                fieldName:'userType',   
                allowBlank : false,   
                listeners:{   
                        select:function(){   
                                var value = this.getValue();   
                                //Ext.log(value);   
                                if(value == '2')   
                                {   
                                        //formPanel.stationidField.setVisible(false); //这种方法只能隐藏field而不能隐藏field                                             //formPanel.hospitalidField.setVisible(true);   对应的label,用下面的方法则可以一起隐藏.   
                                           
                                        hideField(formPanel.stationidField);   
                                        showField(formPanel.hospitalidField);   
                                }   
                                if(value == '3')   
                                {   
                                        //formPanel.hospitalidField.setVisible(false);   
                                        //formPanel.stationidField.setVisible(true);   
                                        hideField(formPanel.hospitalidField);                   
                                        showField(formPanel.stationidField);                           
                                }   
                                if(value == '1' || value == '4')   
                                {   
                                        //formPanel.hospitalidField.setVisible(true);   
                                        //formPanel.stationidField.setVisible(true);                                           
                                        showField(formPanel.hospitalidField);   
                                        showField(formPanel.stationidField);   
                                }   
                        }   
                }   
        });