Array problema con el establecimiento de toda la fila en lugar de una sola célula.

on (press)
{
    _global.cogrot[1];
    _global.cogarray = new Array(5,6);
    _global.matflag = new Array(1);
}

on (releaseOutside)
{
    var madvar=1000;
    var num1;
    var num2;
        overpeg=0;
    //stopDrag();
        for (num1=1; num1<=4; num1++)
        {    for (num2=1; num2<=5; num2++)
            {    if (this._x>((73.5*num1)+105.3))
                {    if (this._x<((73.5*num1)+105.3+16))
                    {    if (this._y>((73.5*num2)+20.2))
                        {    if (this._y<((73.5*num2)+20.2+16))
                            {    this._x=(num1*73.5)+105.3+8;
                                this._y=(num2*73.5)+20.2+8;
                                trace(1000000);
                                for (num3=0; num3<=5; num3++)
                                {    for (num4=0; num4<=6; num4++)
                                    {    trace(_global.cogarray[num3,num4]);
                                    }
                                }
                                trace(1000000);
This line is causing the problem....            
                    ----------->_global.cogarray[num1,num2]=1;

                                trace(1000000);
                                for (num3=0; num3<=5; num3++)
                                {    for (num4=0; num4<=6; num4++)
                                    {    trace(_global.cogarray[num3,num4]);
                                    }
                                }
                                trace(1000000);
                                
                                _global.num1glob=num1;
                                _global.num2glob=num2;
                                overpeg=1;
                                oddeven=(num1+num2)%2
                                
                                checkmatrix(num1,num2);
                                
                                
                                
                                if (_global.matflag[1]>0){
                                if (oddeven<1)
                                {
                                    _global.cogrot[1]=-5;
                                }
                                if (oddeven>0)
                                {
                                    _global.cogrot[1]=5;
                                }}
                                _global.matflag[1]=0;
                            }
                        }
                    }
                }
            }
        }
    if (overpeg<1)
    {
        this._x=initx;
        this._y=inity;
    }
}