Mouse slider problem

1

Hi,
I want to create a picture gallery that has for example 14 movieClips (everyone has a box) horizontally lined up and distance between them to be 10pixels. The width of the scroll stage is Stage.width and depending on _xmouse position it moves left/right. I have made that in the code below:

centar = Stage.width/2;
sirina = Stage.width;
desniKraj = Stage.width/2 - nav._width/2;
leviKraj = Stage.width/2 + nav._width/2;
max_Speed;
nav.onEnterFrame = function() {  
    nav._x = nav._x - ((_xmouse-centar)/sirina)*max_Speed;
    
    if(nav._x < desniKraj && _xmouse > Stage.width/2) {
        max_Speed = 0;
        
    } else if(nav._x > leviKraj && _xmouse < Stage.width/2) {
        max_Speed = 0;
        
    } else {
        max_Speed = 100;
    }
    }

How do i create, that when you roll over on one of the movieClips the clip resizes larger (gradually/dynamically) and of course the other clips move so that the distance of every movie clip is ALWAYS 10pixels???