// MichaelMcElroy.NET
 // Copyright 2007, Michael McElroy.
 // All rights are reserved.


 // Entity

    function Entity () {}
    this . prototype = Entity . prototype;
    this . prototype . superclass = null;
    

 // Methods

    this . prototype . initialize = function ()
        
        {
        return;
        };

    this . prototype . finalize = function ()
        
        {
        return;
        };

    this . prototype . graft = function (that)
    
        {
        var property;


     // Copy each property from 'this' to 'that'.

        for (property in this)
        
            {
            if (typeof (that [property]) == "undefined")
            
                {
                that [property] = this [property];
                }
            }


     // Assign a superclass to each function in 'that'.

        for (property in that)
        
            {
            if (typeof (that [property]) == "function")
            
                {
                that [property] . superclass = this;
                }
            }

        return;
        };




 // Delegate

    function Delegate () {}
    this . prototype = Delegate . prototype;
    this . prototype . superclass = Entity . prototype;


 // Members

    this . prototype . proxy  = null;
    this . prototype . entity = null;
    this . prototype . method = null;


 // Methods
 
    this . prototype . initialize = function ()
    
        {
        arguments . callee . superclass . initialize . apply (this);

        return;
        };

    this . prototype . act = function ()
    
        {
        return (this . proxy . apply (this, arguments));
        };
    
    this . prototype . getProxy = function ()

        {
        return (this . proxy);
        };

    this . prototype . setEntity = function (entity)

        {
        this . entity = entity;
        this . updateProxy ();
        
        return;
        };

    this . prototype . setMethod = function (method)

        {
        this . method = method;
        this . updateProxy ();
        
        return;
        };

    this . prototype . updateProxy = function ()
    
        {
        var entity;
        var method;
        
        entity = this . entity;
        method = this . method;

        if ((entity != null) && (method != null))
        
            {
            this . proxy = function () {return (method . apply (entity, arguments));};
            }
        
        else
        
            {
            this . proxy = function () {return;};
            }
        
        return;
        };

    this . prototype . register = function (entity, event)
    
        {
        if (entity . addEventListener)
        
            {
            entity . addEventListener (event, this . getProxy (), false);
            }
        
        else if (entity . attachEvent)
        
            {
            entity . attachEvent ("on" + event, this . getProxy ());
            }
        
        else
        
            {
            entity ["on" + event] = this . getProxy ();
            }

        return;
        };

    this . prototype . unregister = function (entity, event)
    
        {
        if (entity . removeEventListener)
        
            {
            entity . removeEventListener (event, this . getProxy (), false);
            }
        
        else if (entity . detatchEvent)
        
            {
            entity . detachEvent ("on" + entity, this . getProxy ());
            }
        
        else if (entity ["on" + event] == this . getProxy ())
        
            {
            entity ["on" + event] = null;
            }

        return;
        };

    this . prototype . superclass . graft (this . prototype);




 // Stars

    function Stars () {}
    this . prototype = Stars . prototype;
    this . prototype . superclass = Entity . prototype;


 // Members
 
    this . prototype . address          = null;
    this . prototype . starsInterface   = null;
    
 
 // Methods

    this . prototype . initialize = function (address)
    
        {
        arguments . callee . superclass . initialize . apply (this);

        this . starsInterface = new Interface ();
        this . starsInterface . initialize (address);
        
        return;
        };

    this . prototype . getGraphics = function ()
    
        {
        var graphics;
        
        graphics = null;
        
        if (this . starsInterface != null)
        
            {
            graphics = this . starsInterface . getGraphics ();
            }

        return (graphics);
        };

    this . prototype . superclass . graft (this . prototype);
        



 // Interface

    function Interface () {}
    this . prototype = Interface . prototype;
    this . prototype . superclass = Entity . prototype;


 // Members
 
    this . prototype . picturesAddress              = "resources";
    this . prototype . dimStarPictureName           = "star.dim.png";
    this . prototype . brightStarPictureName        = "star.bright.png";
    this . prototype . zoomPictureName              = "zoom.png";
    this . prototype . activeZoomKnobPictureName    = "knob.active.png";
    this . prototype . inactiveZoomKnobPictureName  = "knob.inactive.png";
    
    this . prototype . address                  = null;
    this . prototype . engine                   = null;

    this . prototype . zoom                     = null;
    this . prototype . zoomActive               = null;
    this . prototype . pixelRatio               = null;
    this . prototype . borderThickness          = null;
    this . prototype . rowDimension             = null;
    this . prototype . columnDimension          = null;
    this . prototype . boardRowDimension        = null;
    this . prototype . boardColumnDimension     = null;
    this . prototype . arenaRowDimension        = null;
    this . prototype . arenaColumnDimension     = null;
    this . prototype . zoomRowDimension         = null;
    this . prototype . zoomColumnDimension      = null;
    this . prototype . spaceRowDimension        = null;

    this . prototype . graphics                 = null;
    this . prototype . brightStarGraphics       = null;
    this . prototype . dimStarGraphics          = null;
    this . prototype . boardGraphics            = null;
    this . prototype . arenaGraphics            = null;
    this . prototype . zoomGraphics             = null;
    this . prototype . zoomKnobGraphics         = null;
    this . prototype . zoomGlassGraphics        = null;

    this . prototype . activateZoomDelegate     = null;
    this . prototype . deactivateZoomDelegate   = null;
    this . prototype . selectZoomDelegate       = null;
    this . prototype . selectStarDelegate       = null;
    
 
 // Methods

    this . prototype . initialize = function (address)
    
        {
        arguments . callee . superclass . initialize . apply (this);

        this . setAddress (address);
        this . initializeQueries ();
        this . initializeEngine ();
        this . initializeValues ();
        this . initializeGraphics ();
        this . initializeDelegates ();
        this . reset ();
        
        return;
        };
        
    this . prototype . initializeQueries = function ()

        {
        return;
        };
        
    this . prototype . initializeEngine = function ()

        {
        this . engine = new Engine ();
        this . engine . initialize ();

        return;
        };
        
    this . prototype . initializeValues = function ()

        {
        this . zoom = 1.00;
        this . zoomActive = 0;
        this . pixelRatio = 0; // 1 unit = [pixelRatio] pixels.
        this . minimumPixelRatio = 50;
        this . maximumPixelRatio = 100;
        this . borderThickness = 0.00; //0.32;
        this . rowDimension = this . engine . getRowDimension () + this . borderThickness + this . borderThickness;
        this . columnDimension = this . engine . getColumnDimension () + this . borderThickness + this . borderThickness;
        this . boardRowDimension = this . rowDimension - this . borderThickness - this . borderThickness;
        this . boardColumnDimension = this . columnDimension - this . borderThickness - this . borderThickness;
        this . arenaRowDimension = this . rowDimension - this . borderThickness - this . borderThickness;
        this . arenaColumnDimension = this . columnDimension - this . borderThickness - this . borderThickness;
        this . glassRowDimension = this . arenaRowDimension;
        this . glassColumnDimension = this . arenaColumnDimension;
        this . starRowDimension = 2.7;
        this . starColumnDimension = 2.7;
        this . zoomRowDimension = 0.00; 0.16;
        this . zoomColumnDimension = 1.00;
        this . spaceRowDimension = 0.08;

        return;
        };
        
    this . prototype . initializeGraphics = function ()
    
        {
        this . graphics = document . createElement ("div");
        this . graphics . style . zIndex = "0";
        this . graphics . style . position = "relative";
        this . graphics . render = 1;

        this . boardGraphics = document . createElement ("div");
        this . boardGraphics . style . zIndex = "1";
        this . boardGraphics . style . position = "absolute";
        this . boardGraphics . style . backgroundColor = "#000000"; //"#ecece2";
        this . boardGraphics . style . overflow = "hidden";
        this . boardGraphics . style . marginLeft = "50%";
        
        this . arenaGraphics = document . createElement ("div");
        this . arenaGraphics . style . zIndex = "2";
        this . arenaGraphics . style . position = "absolute";
        this . arenaGraphics . style . backgroundColor = "#030c1d";
        this . arenaGraphics . style . overflow = "hidden";
        this . arenaGraphics . style . marginLeft = "50%";

        this . glassGraphics = document . createElement ("div");
        this . glassGraphics . style . zIndex = "3";
        this . glassGraphics . style . position = "absolute";
        this . glassGraphics . style . overflow = "hidden";
        this . glassGraphics . style . cursor = "pointer";
        this . glassGraphics . style . marginLeft = "50%";

        this . zoomGraphics = document . createElement ("div");
        this . zoomGraphics . style . zIndex = "10";
        this . zoomGraphics . style . position = "absolute";
        this . zoomGraphics . style . marginLeft = "50%";
        this . zoomGraphics . style . backgroundImage = "url('" + this . address + "/" + this . picturesAddress + "/" + this . zoomPictureName + "')";
        this . zoomGraphics . style . display = "none";

        this . zoomKnobGraphics = document . createElement ("div");
        this . zoomKnobGraphics . style . zIndex = "1";
        this . zoomKnobGraphics . style . position = "absolute";
        this . zoomKnobGraphics . style . overflow = "hidden";

        this . zoomGlassGraphics = document . createElement ("div");
        this . zoomGlassGraphics . style . zIndex = "2";
        this . zoomGlassGraphics . style . position = "absolute";
        this . zoomGlassGraphics . style . overflow = "hidden";
        this . zoomGlassGraphics . style . cursor = "pointer";

        this . dimStarGraphics = new Array ();
        this . brightStarGraphics = new Array ();

        for (var rowIndex = 0; rowIndex < this . engine . getRowDimension (); rowIndex = rowIndex + 1)
        
            {
            this . dimStarGraphics [rowIndex] = new Array ();
            this . brightStarGraphics [rowIndex] = new Array ();

            for (var columnIndex = 0; columnIndex < this . engine . getColumnDimension (); columnIndex = columnIndex + 1)
            
                {
                this . dimStarGraphics [rowIndex] [columnIndex] = document . createElement ("img");
                this . dimStarGraphics [rowIndex] [columnIndex] . style . zIndex = "0";
                this . dimStarGraphics [rowIndex] [columnIndex] . style . position = "absolute";
                this . dimStarGraphics [rowIndex] [columnIndex] . src = this . address + "/" + this . picturesAddress + "/" + this . dimStarPictureName;
                this . dimStarGraphics [rowIndex] [columnIndex] . alt = "(Loading the dim star picture ...)";

                this . brightStarGraphics [rowIndex] [columnIndex] = document . createElement ("img");
                this . brightStarGraphics [rowIndex] [columnIndex] . style . zIndex = "0";
                this . brightStarGraphics [rowIndex] [columnIndex] . style . position = "absolute";
                this . brightStarGraphics [rowIndex] [columnIndex] . src = this . address + "/" + this . picturesAddress + "/" + this . brightStarPictureName;
                this . brightStarGraphics [rowIndex] [columnIndex] . alt = "(Loading the bright star picture ...)";
                }
            }

        this . assembleGraphics ();
    
        return;
        };

    this . prototype . initializeDelegates = function ()
    
        {
        this . activateZoomDelegate = new Delegate ();
        this . activateZoomDelegate . initialize ();
        this . activateZoomDelegate . setEntity (this);
        this . activateZoomDelegate . setMethod (this . activateZoom);

        this . deactivateZoomDelegate = new Delegate ();
        this . deactivateZoomDelegate . initialize ();
        this . deactivateZoomDelegate . setEntity (this);
        this . deactivateZoomDelegate . setMethod (this . deactivateZoom);

        this . selectZoomDelegate = new Delegate ();
        this . selectZoomDelegate . initialize ();
        this . selectZoomDelegate . setEntity (this);
        this . selectZoomDelegate . setMethod (this . selectZoom);

        this . selectStarDelegate = new Delegate ();
        this . selectStarDelegate . initialize ();
        this . selectStarDelegate . setEntity (this);
        this . selectStarDelegate . setMethod (this . selectStar);

        return;
        };
        
    this . prototype . assembleGraphics = function ()
    
        {
        this . graphics . appendChild (this . zoomGraphics);
        this . graphics . appendChild (this . boardGraphics);
        this . graphics . appendChild (this . arenaGraphics);
        this . graphics . appendChild (this . glassGraphics);

        this . zoomGraphics . appendChild (this . zoomKnobGraphics);
        this . zoomGraphics . appendChild (this . zoomGlassGraphics);

        for (var rowIndex = 0; rowIndex < this . engine . getRowDimension (); rowIndex = rowIndex + 1)
        
            {
            for (var columnIndex = 0; columnIndex < this . engine . getColumnDimension (); columnIndex = columnIndex + 1)
            
                {
                this . arenaGraphics . appendChild (this . dimStarGraphics [rowIndex] [columnIndex]);
                this . arenaGraphics . appendChild (this . brightStarGraphics [rowIndex] [columnIndex]);
                }
            }

        return;
        };
        
    this . prototype . reset = function (event)
    
        {
        this . activateZoomDelegate . register (this . zoomGlassGraphics, "mousedown");
        this . deactivateZoomDelegate . register (this . zoomGlassGraphics, "mouseup");
        this . deactivateZoomDelegate . register (this . zoomGlassGraphics, "mouseout");
        this . selectZoomDelegate . register (this . zoomGlassGraphics, "mousedown");
        this . selectZoomDelegate . register (this . zoomGlassGraphics, "mousemove");
        this . selectStarDelegate . register (this . glassGraphics, "click");
        this . render ();

//      event . stopPropagation ();
//      event . preventDefault ();

        return;
        };
    
    this . prototype . setAddress = function (address)
    
        {
        this . address = (address != null) ? address : "";
        
        return;
        };

    this . prototype . activateZoom = function (event)
    
        {
        this . zoomActive = 1;
        this . graphics . render = 1;
        this . render ();

//      event . stopPropagation ();
//      event . preventDefault ();
        event . cancelBubble = true;

        return;
        };

    this . prototype . deactivateZoom = function (event)
    
        {
        this . zoomActive = 0;
        this . graphics . render = 1;
        this . render ();

//      event . stopPropagation ();
//      event . preventDefault ();
        event . cancelBubble = true;

        return;
        };

    this . prototype . selectZoom = function (event)
    
        {
        var columnCoordinate;
        var columnIndex;
        
        if (this . zoomActive)
        
            {
            columnCoordinate = this . getColumnCoordinate (event);

            this . zoom = columnCoordinate / this . zoomColumnDimension / 100;
            this . zoom = (this . zoom < 0) ? 0 : this . zoom;
            this . zoom = (this . zoom > 1) ? 1 : this . zoom;
            this . graphics . render = 1;
            this . render ();
            }

//      event . stopPropagation ();
//      event . preventDefault ();
        event . cancelBubble = true;
        
        return (false);
        };

    this . prototype . selectStar = function (event)
    
        {
        var rowCoordinate;
        var columnCoordinate;
        var rowIndex;
        var columnIndex;
        
        rowCoordinate = this . getRowCoordinate (event);
        columnCoordinate = this . getColumnCoordinate (event);
        rowIndex = this . getRowIndex (rowCoordinate);
        columnIndex = this . getColumnIndex (columnCoordinate);
        
        this . engine . selectStar (rowIndex, columnIndex);
        this . render ();

        event . stopPropagation ();
        event . preventDefault ();
        event . cancelBubble = true;
        
        return (false);
        };

    this . prototype . getRowIndex = function (coordinate)

        {
        var index;
        
        index = null;
        
        if ((typeof (coordinate) != "undefined") && (coordinate != null))
        
            {
            index = Math . floor (coordinate / (Math . floor (this . glassRowDimension * this . pixelRatio) / this . engine . getRowDimension ()));
            }
        
        return (index);
        };

    this . prototype . getColumnIndex = function (coordinate)

        {
        var index;
        
        index = null;

        if ((typeof (coordinate) != "undefined") && (coordinate != null))
        
            {
            index = Math . floor (coordinate / (Math . floor (this . glassColumnDimension * this . pixelRatio) / this . engine . getColumnDimension ()));
            }
        
        return (index);
        };

    this . prototype . getRowCoordinate = function (event)

        {
        var rowCoordinate;
        
        rowCoordinate = null;
        
        if ((typeof (event) != "undefined") && (event != null))
        
            {
            if (typeof (event . offsetY) != "undefined")
            
                {
                rowCoordinate = event . offsetY;
                }

            if (typeof (event . layerY) != "undefined")
            
                {
                rowCoordinate = event . layerY;
                }
            }

        return (rowCoordinate);
        };

    this . prototype . getColumnCoordinate = function (event)

        {
        var columnCoordinate;
        
        columnCoordinate = null;
        
        if ((typeof (event) != "undefined") && (event != null))
        
            {
            if (typeof (event . offsetX) != "undefined")
            
                {
                columnCoordinate = event . offsetX;
                }

            if (typeof (event . layerX) != "undefined")
            
                {
                columnCoordinate = event . layerX;
                }
            }

        return (columnCoordinate);
        };

    this . prototype . getQueries = function ()

        {
        var queries;
        var queryText;
        var queryPairs;
        
        queries     = new Object ();
        queryText   = window . location . search . substring (1);
        queryPairs  = queryText . split ("&");

        for (var pairIndex = 0; pairIndex < queryPairs . length; pairIndex = pairIndex + 1)
        
            {
            var name;
            var value;
            
            name            = queryPairs [pairIndex] . split ("=") [0];
            value           = queryPairs [pairIndex] . split ("=") [1];
            queries [name]  = value;
            }
        
        return (queries);
        };

    this . prototype . getGraphics = function ()
    
        {
        return (this . graphics);
        };

    this . prototype . getPixels = function (units, ratio)
    
        {
        var pixels;
        
        pixels = 0;
        
        if ((typeof (units) != "undefined") && (units != null) && (typeof (ratio) != "undefined") && (ratio != null))
        
            {
            pixels = units * ratio;
            }
            
        pixels = Math . round (pixels);
        
        return (pixels);
        };

    this . prototype . render = function ()

        {
        if (this . graphics != null)

            {
         // Zoom

            this . pixelRatio = (this . maximumPixelRatio - this . minimumPixelRatio) * this . zoom + this . minimumPixelRatio;
            this . pixelRatio = (this . pixelRatio < this . minimumPixelRatio) ? this . minimumPixelRatio : this . pixelRatio;
            this . pixelRatio = (this . pixelRatio > this . maximumPixelRatio) ? this . maximumPixelRatio : this . pixelRatio;


         // Static

            this . zoomKnobGraphics . style . top = "0px";
            this . zoomKnobGraphics . style . left = this . getPixels (this . zoom * this . zoomColumnDimension - this . zoomRowDimension / 2, this . maximumPixelRatio) + "px";
            this . zoomKnobGraphics . style . height = this . getPixels (this . zoomRowDimension, this . maximumPixelRatio) + "px";
            this . zoomKnobGraphics . style . width = this . getPixels (this . zoomRowDimension, this . maximumPixelRatio) + "px";
            this . zoomKnobGraphics . style . backgroundImage = "url('" + this . address + "/" + this . picturesAddress + "/" + (this . zoomActive ? this . activeZoomKnobPictureName : this . inactiveZoomKnobPictureName) + "')";

            if (this . graphics . render)

                {
                this . graphics . render = 0;
                this . graphics . style . top = "0px";
                this . graphics . style . left = "0px";
                this . graphics . style . height = this . getPixels (this . zoomRowDimension + this . spaceRowDimension, this . maximumPixelRatio) +  this . getPixels (this . rowDimension, this . pixelRatio) + "px";
                this . graphics . style . width = this . getPixels (this . zoomRowDimension + this . spaceRowDimension, this . maximumPixelRatio) + this . getPixels (this . columnDimension, this . maximumPixelRatio) + "px";
                this . zoomGraphics . style . top = "0px";
                this . zoomGraphics . style . left = - this . getPixels (this . zoomColumnDimension / 2, this . maximumPixelRatio) + "px";
                this . zoomGraphics . style . height = this . getPixels (this . zoomRowDimension, this . maximumPixelRatio) + "px";
                this . zoomGraphics . style . width = this . getPixels (this . zoomColumnDimension, this . maximumPixelRatio) + "px";
                this . zoomGlassGraphics . style . top = "0px";
                this . zoomGlassGraphics . style . left = "0px";
                this . zoomGlassGraphics . style . height = this . getPixels (this . zoomRowDimension, this . maximumPixelRatio) + "px";
                this . zoomGlassGraphics . style . width = this . getPixels (this . zoomColumnDimension, this . maximumPixelRatio) + "px";
                this . boardGraphics . style . top = this . getPixels (this . zoomRowDimension + this . spaceRowDimension, this . maximumPixelRatio) + "px";
                this . boardGraphics . style . left = - this . getPixels (this . columnDimension / 2, this . pixelRatio) + "px";
                this . boardGraphics . style . height = this . getPixels (this . boardRowDimension, this . pixelRatio) + "px";
                this . boardGraphics . style . width = this . getPixels (this . boardColumnDimension, this . pixelRatio) + "px";
                this . arenaGraphics . style . top = this . getPixels (this . zoomRowDimension + this . spaceRowDimension, this . maximumPixelRatio) + this . getPixels (this . borderThickness, this . pixelRatio) + "px";
                this . arenaGraphics . style . left = - this . getPixels (this . columnDimension / 2 - this . borderThickness, this . pixelRatio) + "px";
                this . arenaGraphics . style . height = this . getPixels (this . arenaRowDimension, this . pixelRatio) + "px";
                this . arenaGraphics . style . width = this . getPixels (this . arenaColumnDimension, this . pixelRatio) + "px";
                this . glassGraphics . style . top = this . getPixels (this . zoomRowDimension + this . spaceRowDimension, this . maximumPixelRatio) + this . getPixels (this . borderThickness, this . pixelRatio) + "px";
                this . glassGraphics . style . left = - this . getPixels (this . columnDimension / 2 - this . borderThickness, this . pixelRatio) + "px";
                this . glassGraphics . style . height = this . getPixels (this . glassRowDimension, this . pixelRatio) + "px";
                this . glassGraphics . style . width = this . getPixels (this . glassColumnDimension, this . pixelRatio) + "px";

                for (var rowIndex = 0; rowIndex < this . engine . getRowDimension (); rowIndex = rowIndex + 1)
                
                    {
                    for (var columnIndex = 0; columnIndex < this . engine . getColumnDimension (); columnIndex = columnIndex + 1)
                    
                        {
                        this . dimStarGraphics [rowIndex] [columnIndex] . style . top = this . getPixels (rowIndex - (this . starRowDimension - this . glassRowDimension / this . engine . getRowDimension ()) / 2, this . pixelRatio) + "px";
                        this . dimStarGraphics [rowIndex] [columnIndex] . style . left = this . getPixels (columnIndex - (this . starColumnDimension - this . glassColumnDimension / this . engine . getColumnDimension ()) / 2, this . pixelRatio) + "px";
                        this . dimStarGraphics [rowIndex] [columnIndex] . style . height = this . getPixels (this . starRowDimension, this . pixelRatio) + "px";
                        this . dimStarGraphics [rowIndex] [columnIndex] . style . width = this . getPixels (this . starColumnDimension, this . pixelRatio) + "px";
                        this . brightStarGraphics [rowIndex] [columnIndex] . style . top = this . getPixels (rowIndex - (this . starRowDimension - this . glassRowDimension / this . engine . getRowDimension ()) / 2, this . pixelRatio) + "px";
                        this . brightStarGraphics [rowIndex] [columnIndex] . style . left = this . getPixels (columnIndex - (this . starColumnDimension - this . glassColumnDimension / this . engine . getColumnDimension ()) / 2, this . pixelRatio) + "px";
                        this . brightStarGraphics [rowIndex] [columnIndex] . style . height = this . getPixels (this . starRowDimension, this . pixelRatio) + "px";
                        this . brightStarGraphics [rowIndex] [columnIndex] . style . width = this . getPixels (this . starColumnDimension, this . pixelRatio) + "px";
                        }
                    }
                }

         
         // Dynamic
            
            for (var rowIndex = 0; rowIndex < this . engine . getRowDimension (); rowIndex = rowIndex + 1)
            
                {
                for (var columnIndex = 0; columnIndex < this . engine . getColumnDimension (); columnIndex = columnIndex + 1)
                
                    {
                    if (this . engine . getStarCode (rowIndex, columnIndex) == this . engine . getDimStarCode ())
                    
                        {
                        this . dimStarGraphics [rowIndex] [columnIndex] . style . display = "block";
                        this . brightStarGraphics [rowIndex] [columnIndex] . style . display = "none";
                        }
                    
                    else
                    
                        {
                        this . dimStarGraphics [rowIndex] [columnIndex] . style . display = "none";
                        this . brightStarGraphics [rowIndex] [columnIndex] . style . display = "block";
                        }
                    }
                }
            }

        return;
        };

    this . prototype . superclass . graft (this . prototype);




 // Engine

    function Engine () {}
    this . prototype = Engine . prototype;
    this . prototype . superclass = Entity . prototype;


 // Members
 
    this . prototype . rowDimension     = 5;
    this . prototype . columnDimension  = 5;
    this . prototype . dimStarCode      = 0;
    this . prototype . brightStarCode   = 1;
    this . prototype . matrix           = null;
    
 
 // Methods

    this . prototype . initialize = function (address)
    
        {
        arguments . callee . superclass . initialize . apply (this);

        this . initializeMatrix ();
        this . copyPattern ();

        return;
        };
        
    this . prototype . reset = function ()
    
        {
        this . copyPattern ();
        
        return;
        };

    this . prototype . initializeMatrix = function ()
    
        {
        this . matrix = null;
        this . matrix = new Array ();

        for (var rowIndex = 0; rowIndex < this . rowDimension; rowIndex = rowIndex + 1)
        
            {
            this . matrix [rowIndex] = new Array ();

            for (var columnIndex = 0; columnIndex < this . columnDimension; columnIndex = columnIndex + 1)
            
                {
                this . matrix [rowIndex] [columnIndex] = 0;
                }
            }

        return;
        };

    this . prototype . copyPattern = function (pattern)
    
        {
     // The pattern parameter is ignored for now.
     // The default pattern has all the edge stars dim and the center stars bright.

        for (var rowIndex = 0; rowIndex < this . rowDimension; rowIndex = rowIndex + 1)
        
            {
            for (var columnIndex = 0; columnIndex < this . columnDimension; columnIndex = columnIndex + 1)
            
                {
                if ((rowIndex == 0) || (rowIndex == (this . rowDimension - 1)) || (columnIndex == 0) || (columnIndex == (this . columnDimension - 1)))
                
                    {
                    this . matrix [rowIndex] [columnIndex] = this . dimStarCode;
                    }
                    
                else
                
                    {
                    this . matrix [rowIndex] [columnIndex] = this . brightStarCode;
                    }
                }
            }

        return;
        };

    this . prototype . getRowDimension = function ()
    
        {
        return (this . rowDimension);
        };

    this . prototype . getColumnDimension = function ()
    
        {
        return (this . columnDimension);
        };

    this . prototype . getDimStarCode = function ()
    
        {
        return (this . dimStarCode);
        };

    this . prototype . getBrightStarCode = function ()
    
        {
        return (this . brightStarCode);
        };

    this . prototype . getStarCode = function (rowIndex, columnIndex)
    
        {
        var starCode;
        
        starCode = null;
        
        if ((this . matrix != null) && (rowIndex >= 0) && (rowIndex < this . rowDimension) && (columnIndex >= 0) && (columnIndex < this . columnDimension))
        
            {
            starCode = this . matrix [rowIndex] [columnIndex];
            }
        
        return (starCode);
        };

    this . prototype . selectStar = function (rowIndex, columnIndex)
    
        {
        if (this . matrix != null)
        
            {
            this . invertStar (rowIndex - 1, columnIndex + 0);
            this . invertStar (rowIndex + 0, columnIndex - 1);
            this . invertStar (rowIndex + 0, columnIndex + 0);
            this . invertStar (rowIndex + 0, columnIndex + 1);
            this . invertStar (rowIndex + 1, columnIndex + 0);
            }

        return;
        };

    this . prototype . invertStar = function (rowIndex, columnIndex)
    
        {
        if ((rowIndex >= 0) && (rowIndex < this . rowDimension) && (columnIndex >= 0) && (columnIndex < this . columnDimension))
        
            {
            this . matrix [rowIndex] [columnIndex] = (this . matrix [rowIndex] [columnIndex] == this . dimStarCode) ? this . brightStarCode : this . dimStarCode;
            }

        return;
        };

    this . prototype . superclass . graft (this . prototype);