# Controlling alpha with as
**URL:** https://forum.kirupa.com/t/controlling-alpha-with-as/23227
**Category:** Uncategorized
**Created:** [June 14, 2003, 11:35pm UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227 "2003-06-14T23:35:24Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 14, 2003, 11:35pm UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/1 "2003-06-14T23:35:24Z")
what would be the best way to control a mc’s alpha with actionscript. i need to be able to fade a mc with various buttons
thanks
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 14, 2003, 11:55pm UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/2 "2003-06-14T23:55:36Z")
[http://www.kirupaforum.com/forums/showthread.php?s=&threadid=4016](http://www.kirupaforum.com/forums/showthread.php?s=&threadid=4016)
---
### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 14, 2003, 11:55pm UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/3 "2003-06-14T23:55:45Z")
[AS]function alphaFade(clipToFade, finalAlpha, speed) {
clipToFade.onEnterFrame = function() {
this.\_alpha += (finalAlpha-this.\_alpha)/speed;
if (Math.floor(this.\_alpha) == Math.floor(finalAlpha)) {
this.\_alpha = finalAlpha;
delete this.onEnterFrame;
}
};
}
myButtonInstanceName.onPress = function() {
alphaFade(myMovieClip, 20, 10);
};[/AS]
If you don’t want to use dynamic event handlers you can just use
[AS]on (press) {
alphaFade(myMovieClip, 20, 10);
}[/AS]
Change the parameters to whatever you want. myMovieClip is the clip you want to fade, 20 is the final alpha value, and 10 is the speed of the fade.
I hope this helps.
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 14, 2003, 11:57pm UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/4 "2003-06-14T23:57:07Z")
> \*Originally posted by Ilyas \*
> \*\*[http://www.kirupaforum.com/forums/showthread.php?s=&threadid=4016](http://www.kirupaforum.com/forums/showthread.php?s=&threadid=4016) \*\*
Posted at the same time 😛
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 14, 2003, 11:59pm UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/5 "2003-06-14T23:59:20Z")
thank you guys! ya know i saw soemthing about this the other day but i couldn’t find the post #
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 15, 2003, 12:00am UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/6 "2003-06-15T00:00:10Z")
> \*Originally posted by Digitalosophy \*
> \*\*thank you guys! ya know i saw soemthing about this the other day but i couldn’t find the post # \*\*
Thats the glory of [http://www.kirupaforum.com/forums/search.php?s=](http://www.kirupaforum.com/forums/search.php?s=) 😉
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 15, 2003, 12:06am UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/7 "2003-06-15T00:06:57Z")
lol ya man i know about the search, as if your header wasn’t good enough. thanks the script worked very well. this will come n super handy 🙂
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 15, 2003, 12:10am UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/8 "2003-06-15T00:10:54Z")
hmm having a problem. i have buttons which are inbeded into movie clips. i am tryin gto refer to the mc as
[AS]
on(release){
\_root.about\_destination = 85;
alphaFade(\_root.header, 20, 10);
}
[/AS]
dang i know this is a silly one but could ya give me a hand?
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 15, 2003, 12:19am UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/9 "2003-06-15T00:19:35Z")
Can you describe what is embeded in what exactly?
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 15, 2003, 12:20am UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/10 "2003-06-15T00:20:36Z")
never mind by using dynamic event handlers there is no problem… thanks again. but i had a movie clip with a button embeded in it that i wanted to control the mc that fades
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 15, 2003, 12:33am UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/11 "2003-06-15T00:33:35Z")
Since it is a regular function and not a prootype you would need to target the timeline the function is on.
So \_root.alphaFade(\_root.header, 20, 10); probably would work.
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### Author:  [@system](https://forum.kirupa.com/u/system)
#### Post date: [June 15, 2003, 12:36am UTC](https://forum.kirupa.com/t/controlling-alpha-with-as/23227/12 "2003-06-15T00:36:24Z")
ahh ok thanks