# Changing \_alpha of clip causing tween to stop

**URL:** <https://forum.kirupa.com/t/changing--alpha-of-clip-causing-tween-to-stop/120666>\
**Category:** Uncategorized\
**Created:** [August 26, 2004, 9:41am UTC](https://forum.kirupa.com/t/changing--alpha-of-clip-causing-tween-to-stop/120666 "2004-08-26T09:41:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Pup\_100](https://avatars.discourse-cdn.com/v4/letter/p/da6949/32.png) [@Pup\_100](https://forum.kirupa.com/u/Pup_100)\
**Post date:** [August 26, 2004, 9:41am UTC](https://forum.kirupa.com/t/changing--alpha-of-clip-causing-tween-to-stop/120666/1 "2004-08-26T09:41:21Z")

</div>

[font=Times New Roman]I have a very basic 2 layer fla with a simple motion tween set out over 40 frames with 4 keyframes setting new locations for the clip to tween to & an Action Script layer with the following code in the first frame[/font]

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```auto
 

mike_mc.onPress=function(){this._alpha=20;

}

```

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[font=Times New Roman]mike\_mc obviously being the movie clip that is being tweened.[/font]

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[font=Times New Roman]Now – When I click on the tweening clip it’s alpha does indeed go down to 20 but the animation also stops at the exact spot where I had clicked on the clip?[/font]

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[font=Times New Roman]How come setting alpha to a value stops the tween & what can I do about it?[/font]

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[font=Times New Roman]Thank you for any help[/font]