# Do i need to redefine instance in a class?

**URL:** <https://forum.kirupa.com/t/do-i-need-to-redefine-instance-in-a-class/233306>\
**Category:** flash\
**Created:** [July 22, 2007, 7:48pm UTC](https://forum.kirupa.com/t/do-i-need-to-redefine-instance-in-a-class/233306 "2007-07-22T19:48:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![antigirl](https://avatars.discourse-cdn.com/v4/letter/a/dbc845/32.png) [@antigirl](https://forum.kirupa.com/u/antigirl)\
**Post date:** [July 22, 2007, 7:48pm UTC](https://forum.kirupa.com/t/do-i-need-to-redefine-instance-in-a-class/233306/1 "2007-07-22T19:48:55Z")

</div>

hey  
Lets say i have a circle [instance name = countyA]

and i have a separate actionscript file that sets it to true or false

public function showThink(county:MovieClip):void  
{

```
        county.visible=true; 
     }

```

when i test this with showThink(countyA);

i get Access of undefined property countyA.

Do i need to redefine this in my actionscript?