一个把数字转英文的实用程序

最近做项目的合同部分时用到需要能把数字转英文的程序，找过很多网站都没用，只能安下心来自己做，程序作的不太精简，但功能可以实现，也许同僚们会用得着。(vbscript)
function zr4(y)'准备数据
dim z(10)
z(1)="ONE"
z(2)="TWO"
z(3)="THREE"
z(4)="FOUR"
z(5)="FIVE"
z(6)="SIX"
z(7)="SEVEN"
z(8)="EIGHT"
z(9)="NINE"
zr4=z(MID(y,1,1))
end function
function zr3(y)'准备数据
dim z(10)
z(1)="ONE"
z(2)="TWO"
z(3)="THREE"
z(4)="FOUR"
z(5)="FIVE"
z(6)="SIX"
z(7)="SEVEN"
z(8)="EIGHT"
z(9)="NINE"
zr3=z(MID(y,3,1))
end function
function zr2(y)'准备数据
dim z(20)
z(10)="TEN"
z(11)="ELEVEN"
z(12)="TWELVE"
z(13)="THIRTEEN"
z(14)="FOURTEEN"
z(15)="FIFTEEN"
z(16)="SIXTEEN"
z(17)="SEVENTEEN"
z(18)="EIGHTEEN"
z(19)="NINETEEN"
zr2=z(MID(y,2,2))
end function
function zr1(y)'准备数据
dim z(10)
z(1)="TEN"
z(2)="TWENTY"
z(3)="THIRTY"
z(4)="FORTY"
z(5)="FIFTY"
z(6)="SIXTY"
z(7)="SEVENTY"
z(8)="EIGHTY"
z(9)="NINETY"
zr1=z(MID(y,2,1))
end function
function dw(y)'准备数据
dim z(5)
z(0)=""
z(1)="THOUSAND"
z(2)="MILLION"
z(3)="BILLION"
dw=z(y)
end function
function w2(y)'用来制作2位数字转英文
    
if MID(y,2,1)="0" then'判断是否小于十
    value=zr3(y)
elseif MID(y,2,1)="1" then'判断是否在十到二十之间
    value=zr2(y)