Rollover functions

programming flash
1

Hi, I’ve been trying to sort this for hours, but just can’t figure out what I’m doing wrong … I’m trying to write a function that attaches a mc with info to the mc i’m rolling over. So bookText_mc would be attached to book_mc, phoneText_mc to phone_mc etc … I’ve got this so far:

function infoTextOver(info_mc:MovieClip) {
    this.onEnterFrame = function() {
        _root.attachMovie("info_mc","info_mc",this.getNextHighestDepth());
        info_mc._alpha += (100-info_mc._alpha)/4;
        info_mc._x = _xmouse;
        info_mc._y = _ymouse;
    };
};

function infoTextOut(info_mc:MovieClip) {
    this.onEnterFrame = function() {
        info_mc._alpha += (0-info_mc._alpha)/4;
        if (info_mc._alpha == 0) {
            info_mc("infoMovieClip");
        }
    };
};

button_mc.onRollOver = infoTextOver(buttonText_mc);
button_mc.onRollOut = infoTextOut(buttonText_mc);

I know its something to do with the parameter of the function but not sure what … any help would be awesome.
Aaron