fnArabToEnglish(from Arabian number to english)

CREATE Function fnArabToEnglish(@Num Float)
Returns Varchar(2000)
 As
begin
 Declare @Word1 Varchar(200),@Word2 Varchar(200),@Word3 Varchar(200),@Word4 Varchar(200), 
         @S     Varchar(200),@STAIL Varchar(200),@SHEAD Varchar(200),
         @VT    Integer,     @HEAD  Integer,     @TERM  Integer,
         @Tail   Float
Select
  @WORD1 = 'ZERO ONE  TWO  THREEFOUR FIVE SIX  SEVENEIGHTNINE ',
  @WORD2 = 'TEN      ELEVEN   TWELVE   THIRTEEN FOURTEEN FIFTEEN  SIXTEEN  SEVENTEENEIGHTEEN NINETEEN ',
  @WORD3 = 'TWENTY THIRTY FORTY  FIFTY  SIXTY  SEVENTYEIGHTY NINETY ',
  @WORD4 = '        THOUSANDMILLION BILLION ',
  @STAIL = 'ONLY',
  @Tail  = 0,
  @S     ='',
  @STAIL ='',
  @SHEAD =''  
if @Num <>Floor(@Num) --not a integer
  begin
    Set @TAIL = (@Num - Floor(@Num)) * 100
    if  @TAIL - Floor(@TAIL) > 0.001 
     Set  @TAIL = Floor(@TAIL) + 1
    else
     Set  @TAIL= Floor(@TAIL)
    if    @TAIL >= 20 
    begin
      Select @S= RTrim(LTRIM(SubString(@WORD3, Convert(int,@TAIL / 9.99) * 7 - 13, 7))),
             @TAIL=Floor(@TAIL)-Floor(Floor(@TAIL)/10)*10 
      if @TAIL > 0.001 
      begin
       Select @STAIL=RTrim(LTRIM(SubString(@WORD1, Convert(int,@TAIL * 5 + 1), 5)) + ' ' + @STAIL),
        @S= RTRIM(LTRIM(@S))+ ' ' + @STAIL
      end
      else
       Select @S=RTRIM(LTRIM(@S)) + ' ' + @STAIL
     Select @STAIL= @S, @S= ''
    end
    else 
     if @TAIL >= 10 
     Set @STAIL=RTRIM(LTRIM(SubString(@WORD2, (Convert(int,@TAIL) - 10) * 9 + 1, 9))) + ' ' + @STAIL
    else
     Set @STAIL=RTRIM(LTRIM(SubString(@WORD1, Convert(int,@TAIL) * 5 + 1, 5))) + ' ' + @STAIL
    Set  @STAIL= 'AND CENTS ' +LTRIM(@STAIL)
  end;
  Select @HEAD= Floor(@Num),@TERM=0
  while  @HEAD > 0 
  begin
   Select @VT  =@HEAD-Floor(@Head/1000)*1000,
          @HEAD= Floor(@HEAD / 1000)
    if @VT > 0 
     Set @TAIL= Floor(@VT / 100)
    if @TAIL > 0 
     Select @SHEAD=RTRIM(LTrim(@SHEAD)) + ' ' +RTRIM(LTrim(SubString(@WORD1, Convert(int,@TAIL * 5 + 1), 5))) + ' HUNDRED'
     Set       @TAIL = Floor(@VT)-Floor(@VT/100)*100
    if @TAIL >= 20 
    begin
     Select @SHEAD=RTRIM(LTrim(@SHEAD)) + ' ' +SubString(@WORD3, (Convert(int,@TAIL / 10) - 2) * 7 + 1, 7),
            @TAIL =Floor(@TAIL)-Floor(@TAIL/10)*10
      if @TAIL > 0 
       Set @SHEAD=RTRIM(Ltrim(@SHEAD)) + ' ' + SubString(@WORD1, Convert(int,@TAIL) * 5 + 1, 5)
    end
    else if @TAIL >= 10 
      Set @SHEAD=RTRIM(Ltrim(@SHEAD)) + ' ' +SubString(@WORD2, (Convert(int,@TAIL) - 10) * 9 + 1, 9)
    else if @TAIL > 0 
       Set @SHEAD=RTRIM(Ltrim(@SHEAD)) + ' ' + SubString(@WORD1,Convert(int,@TAIL * 5) + 1, 5)
    Select @SHEAD=RTRIM(Ltrim(@SHEAD)) + ' ' +SubString(@WORD4, Convert(int,@TERM * 8) + 1, 8),
           @TERM =@TERM + 1,
           @S    =RTRIM(Ltrim(@SHEAD)) + ' ' + @S,
           @SHEAD= ''
  end
 Select @S=RTRIM(Ltrim(@S)) + ' ' + @STAIL
  Return @S
end