SIMPLE Action Script Problem

Hey, I’m having trouble with some action script… I’m pretty new to this
I want some text to be visible when the mouse is hovering over a button,
but for it to dissapear when the mouse has left the button area.

I’ve tried:
[size=1]"{(News.onRollOver){}
Newstext._visible = true}

{(Newstext.onRollOut){
Newstext._visible = false}"[/size]

It keeps giving me this error:
*[size=1]"Scene=Scene 1, Layer=Layer 1, Frame=1: Line 1: ‘;’ expected
{(News.onRollOver){}

Scene=Scene 1, Layer=Layer 1, Frame=1: Line 4: ‘;’ expected
{(Newstext.onRollOut){" etc etc[/size]*

Then I tried:
[size=1]“on(rollOver){
NewsText._alpha = 100;
}”

[/size]And nothing happens at all…

What am I doing wrong? Can anyone help? Thanks.
~JeBuZ