Want background to appear on HitTest

Hey. I just have a quick problem. Everything is working fine, but I just need help with something. Basically this code just drags objects and then puts them inside of another object if it hits it when dropped.
I want the background to be hidden to begin with.
How can I get, when 3-4 boxes are all in the correct place, for the background to appear stating the player a winner?

Code:

---



Mover.onPress = function()
{
        Mover.startDrag();
};
Mover.onRelease = function(Onrelease)
{
        if(Mover._droptarget=="/Base")
        {
                // align Sprite3
                Mover._x = Base._x + (Base._width-Mover._width)/2-15;
                Mover._y = Base._y + (Base._height-Mover._height)/2-7;
        };
        if(Mover._droptarget=="/Base2")
        {
                // align Sprite3
                Mover._x = Base2._x + (Base2._width-Mover._width)/2-15;
                Mover._y = Base2._y + (Base2._height-Mover._height)/2-7;
        };
        if(Mover._droptarget=="/Base3")
        {
                // align Sprite3
                Mover._x = Base3._x + (Base3._width-Mover._width)/2-15;
                Mover._y = Base3._y + (Base3._height-Mover._height)/2-7;
        };
        if(Mover._droptarget=="/Base4")
        {
                // align Sprite3
                Mover._x = Base4._x + (Base4._width-Mover._width)/2-15;
                Mover._y = Base4._y + (Base4._height-Mover._height)/2-7;
        };
        if(Mover._droptarget=="/Base5")
        {
                // align Sprite3
                Mover._x = Base5._x + (Base5._width-Mover._width)/2-15;
                Mover._y = Base5._y + (Base5._height-Mover._height)/2-7;
        };
        Mover.stopDrag();
};
//////////////////////////////////////////////////MOVER2
Mover2.onPress = function()
{
        Mover2.startDrag();
};
Mover2.onRelease = function()
{
        if(Mover2._droptarget=="/Base")
        {
                // align Sprite3
                Mover2._x = Base._x + (Base._width-Mover2._width)/2-15;
                Mover2._y = Base._y + (Base._height-Mover2._height)/2-7;
        };
        if(Mover2._droptarget=="/Base2")
        {
                // align Sprite3
                Mover2._x = Base2._x + (Base2._width-Mover2._width)/2-15;
                Mover2._y = Base2._y + (Base2._height-Mover2._height)/2-7;
        };
        if(Mover2._droptarget=="/Base3")
        {
                // align Sprite3
                Mover2._x = Base3._x + (Base3._width-Mover2._width)/2-15;
                Mover2._y = Base3._y + (Base3._height-Mover2._height)/2-7;
        };
        if(Mover2._droptarget=="/Base4")
        {
                // align Sprite3
                Mover2._x = Base4._x + (Base4._width-Mover2._width)/2-15;
                Mover2._y = Base4._y + (Base4._height-Mover2._height)/2-7;
        };
        if(Mover2._droptarget=="/Base5")
        {
                // align Sprite3
                Mover2._x = Base5._x + (Base5._width-Mover2._width)/2-15;
                Mover2._y = Base5._y + (Base5._height-Mover2._height)/2-7;
        };       
        Mover2.stopDrag();
};
///Different Mover
Mover3.onPress = function()
{
        Mover3.startDrag();
};
Mover3.onRelease = function()
{
        if(Mover3._droptarget=="/Base")
        {
                // align Sprite3
                Mover3._x = Base._x + (Base._width-Mover3._width)/2-15;
                Mover3._y = Base._y + (Base._height-Mover3._height)/2-7;
        };
        if(Mover3._droptarget=="/Base2")
        {
                // align Sprite3
                Mover3._x = Base2._x + (Base2._width-Mover3._width)/2-15;
                Mover3._y = Base2._y + (Base2._height-Mover3._height)/2-7;
        };
        if(Mover3._droptarget=="/Base3")
        {
                // align Sprite3
                Mover3._x = Base3._x + (Base3._width-Mover3._width)/2-15;
                Mover3._y = Base3._y + (Base3._height-Mover3._height)/2-7;
        };
        if(Mover3._droptarget=="/Base4")
        {
                // align Sprite3
                Mover3._x = Base4._x + (Base4._width-Mover3._width)/2-15;
                Mover3._y = Base4._y + (Base4._height-Mover3._height)/2-7;
        };
        if(Mover3._droptarget=="/Base5")
        {
                // align Sprite3
                Mover3._x = Base5._x + (Base5._width-Mover3._width)/2-15;
                Mover3._y = Base5._y + (Base5._height-Mover3._height)/2-7;
        };
        Mover3.stopDrag();
};
///Different Mover
Mover4.onPress = function()
{
        Mover4.startDrag();
};
Mover4.onRelease = function()
{
        if(Mover4._droptarget=="/Base")
        {
                // align Sprite3
                Mover4._x = Base._x + (Base._width-Mover4._width)/2-15;
                Mover4._y = Base._y + (Base._height-Mover4._height)/2-7;
        };
        if(Mover4._droptarget=="/Base2")
        {
                // align Sprite3
                Mover4._x = Base2._x + (Base2._width-Mover4._width)/2-15;
                Mover4._y = Base2._y + (Base2._height-Mover4._height)/2-7;
        };
        if(Mover4._droptarget=="/Base3")
        {
                // align Sprite3
                Mover4._x = Base3._x + (Base3._width-Mover4._width)/2-15;
                Mover4._y = Base3._y + (Base3._height-Mover4._height)/2-7;
        };
        if(Mover4._droptarget=="/Base4")
        {
                // align Sprite3
                Mover4._x = Base4._x + (Base4._width-Mover4._width)/2-15;
                Mover4._y = Base4._y + (Base4._height-Mover4._height)/2-7;
        };
        if(Mover4._droptarget=="/Base5")
        {
                // align Sprite3
                Mover4._x = Base5._x + (Base5._width-Mover4._width)/2-15;
                Mover4._y = Base5._y + (Base5._height-Mover4._height)/2-7;
        };
       
        Mover4.stopDrag();
};
///Different Mover
Mover5.onPress = function()
{
        Mover5.startDrag();
};
Mover5.onRelease = function()
{
        if(Mover5._droptarget=="/Base")
        {
                // align Sprite3
                Mover5._x = Base._x + (Base._width-Mover5._width)/2-15;
                Mover5._y = Base._y + (Base._height-Mover5._height)/2-7;
        };
        if(Mover5._droptarget=="/Base2")
        {
                // align Sprite3
                Mover5._x = Base2._x + (Base2._width-Mover5._width)/2-15;
                Mover5._y = Base2._y + (Base2._height-Mover5._height)/2-7;
        };
        if(Mover5._droptarget=="/Base3")
        {
                // align Sprite3
                Mover5._x = Base3._x + (Base3._width-Mover5._width)/2-15;
                Mover5._y = Base3._y + (Base3._height-Mover5._height)/2-7;
        };
        if(Mover5._droptarget=="/Base4")
        {
                // align Sprite3
                Mover5._x = Base4._x + (Base4._width-Mover5._width)/2-15;
                Mover5._y = Base4._y + (Base4._height-Mover5._height)/2-7;
        };
        if(Mover5._droptarget=="/Base5")
        {
                // align Sprite3
                Mover5._x = Base5._x + (Base5._width-Mover5._width)/2-15;
                Mover5._y = Base5._y + (Base5._height-Mover5._height)/2-7;
        };
        Mover5.stopDrag();
};

///////////////////////NEW BASE///////////////////////////////////////////////////////////
stop();

function ()
{
if (Mover.hitTest(Base)) {
    _root.river._visible = false;
    }
}

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Hello, what is the correct place for the boxes (winning formula), or even just put fla up to mess with

my site: http://www.fgps.com/keith