Mc that only shows content on mc overstate

hi all gurus…
i am trying to write some actionscript…obviously!!

the effect i am looking for is like what is at
<a href>http://www.hugeinc.com</href>

i have most of the code sorted, such as the _y movement of the transparent movie clip.
i just need the actionscript that is added to the content mc that is located under the transparent moving movie clip.

thanks for all your help guys!!!

i think most ppl dont understand your question… at least i dont :S

cool…sometimes i dont understand my own questions.!!
the easiest way to understand my question is to goto “www.hugeinc.com”.
when the semitransparent window moves over the text, the text appears. but when the semitransparent window is not over the text it doesnot appear.
the way i understand it is that there is some simple actionscript that is attached to the text (which is a mc) that makes it appear when a certain movie clip is over the text.

cheers

this is done with masking… i never used maskes before so i only know the basics…

http://www.kirupa.com/developer/flash5/masking.htm

if you want Dynamic masking (wich i think is being used on that site) i cant help ya

thanks for the quick reply RvGaTe.
I will have a search around.
if anyone else can help, feel free too!!!

heres an example with 3 lines of code

onClipEvent(enterFrame){
_y+=(_parent._ymouse-_y)/5;
}

thanks clownstaples.
THATS IT!!
cheers for your help.