NewBox()

         Makes effects opening windows with tittle and shadow

    Syntax:

         NewBox( nY1, nX1, nY2, nX2, [cTittle], cBox, lShadow, ;
                 [cColor], [nIter], [nDelay] ) -> Nil

         nY1     : Upper left Y coordinate
         nX1     : Upper left X coordinate
         nY2     : Lower right Y coordinate
         nX2     : Lower right X coordinate
         cTittle : Optional tittle of the window
         cBox    : Box of the window
         lShadow : A logical value indicating for shadow showing
         cColor  : Optional, color of the window
         nIter   : Number of iterations of the effect. By default 6
         nDelay  : Delay time. By default 10.

    Description:

         It draws a window in the given coordinates with tittle cTittle
         or without tittle if cTittle is Nil and with or without shadow
         depending on lShadow.
         The color of window is cColor or the active color if cColor is
         Nil.
         The opening effect speed of the window is defined by nInter.

    Return:

         Nothing.

    Example:

         NewBox( 10, 15, 20, 25, "My tittle", "+-+|+-+| ", .T., "GR+/B", 12 )