# ChangeHandler for checkboxes on MC
**URL:** https://forum.kirupa.com/t/changehandler-for-checkboxes-on-mc/43003
**Category:** flash
**Created:** [February 17, 2004, 9:38pm UTC](https://forum.kirupa.com/t/changehandler-for-checkboxes-on-mc/43003 "2004-02-17T21:38:00Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@lunatic](https://forum.kirupa.com/u/lunatic)
#### Post date: [February 17, 2004, 9:38pm UTC](https://forum.kirupa.com/t/changehandler-for-checkboxes-on-mc/43003/1 "2004-02-17T21:38:00Z")
Howdy all,
Okay so I have some checkboxes that make MCs visible or invisible. I put all my MCs into an array and all the checkbox instance names an array and used the following code (the ChangeHandler function is called showHideShape):
[AS]
function ShowHideShape() {
var c;
for (c in checkbox) {
mainMap.map.pan.mapElements[objects[c]].\_visible = checkbox[c].getValue();}
}
[/AS]
This all works great. However, now I need to move all the checkboxes onto their own little MC and for the life of me I can’t figure out how to modify the above to make it work. I tried including the MC name in front of all the checkbox instance names in the array (e.g. checkbox = [MC.cb1, MC.cb2, MC.cb3]) but that didn’t work. I also tried
[AS]
function ShowHideShape() {
var c;
for (c in checkbox) {
mainMap.map.pan.mapElements[objects[c]].\_visible = MC[checkbox[c]].getValue();}
}
[/AS]
but that doesn’t work either.
What am i missing here? :trout: Any ideas? :beam:
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [February 19, 2004, 11:50pm UTC](https://forum.kirupa.com/t/changehandler-for-checkboxes-on-mc/43003/2 "2004-02-19T23:50:14Z")
Hmmmm, still trying to figure this out. I tried a couple more tweaks but nothing seems to get those checkboxes noticed. Anyone have a clue? (-:
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [February 20, 2004, 1:52am UTC](https://forum.kirupa.com/t/changehandler-for-checkboxes-on-mc/43003/3 "2004-02-20T01:52:13Z")
What if you create the function on the timeline of the mc with the checkboxes in it? Then use \_parent.
Or define the function using the onLoad handler, directly on MC. Then use the “this” keyword, eg.
[AS]
onClipEvent(load){
function ShowHideShape() {
var c;
for (c in checkbox) {
mainMap.map.pan.mapElements[objects[c]].\_visible = this[checkbox[c]].getValue();}
}
}
[/AS]
I kind of stabbing at what I think you are trying to do. I’d know if I were talking through my hat if you posted and fla.