Change rollover color deeplinking

Hello, I am new to the forum but have used it many times in the past finding much useful information. I have taken over a site that uses deeplinking. I am not very good with AS yet and can’t figure out how to make the buttons simply change color on rollover. This is the script for each button.

this.deepLink = ‘/home/’;
this.onRelease = _parent.btnRelease;
this.onRollOver = _parent.btnRollOver;
this.onRollOut = _parent.btnRollOut;

I am a newb at this and am just trying to stay afloat and get this updated. Any help would be greatly appreciated. Thanks a ton!