Introduction    Screen
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 BigLetter()     Returns an array with the big banner of a letter
 BigString()     Displays a big banner with a specified string
 BoxClose()      Closes a light focus window
 BoxDelete()     Clears the contents of a light focus window
 BoxOpen()       Opens a light focus window
 BoxMessage()    Writes a message in a light focus window
 BoxPush()       Makes a pushing effect in a light focus window
 BoxQuery()      Makes a query and returns a logic value
 BoxTurn()       Turns on/off a light focus window
 BoxWarning()    Shows a warning in a light focus window
 Fascinate()     Makes an effect on the screen
 FastPrint()     Prints a message on screen
 File2Scr()      Restores the screen from a file
 GetChar()       Returns a character from the screen
 Implode()       Restores a saved screen region
 Message()       Displays a string to the screen
 NewBox()        Opens an exploding window with title and shadow
 Query()         Makes a query and returns a logic value
 RestScr()       Restores a saved screen region
 SaveScr()       Saves a screen region
 Scr2File()      Saves the screen to a file
 Screen()        Clears the screen with optional color and string
 SetFont()       Changes the character font
 SetFontChar()   Changes a single character font
 SetGray()       Creates a virtual b/w monitor
 SmallLetter()   Returns an array with the compresed banner of a letter
 SmallString()   Displays a compresed banner with a specified string
 Wall()          Simulates a wall
 Warning()       Shows a warning at line 24
 Window()        Shows a window with optional title and shadow