获取汉字拼音的第一个字母的函数

这段代码是在客服端运行的
'获取客户简称的拼音缩写 
function getpy() 
dim str 
dim i 
str=document.all.txtContactName.value 
dim ret 
for i=1 to len(str) 
ret=ret&getpychar(mid(str,i,1)) 
next 
document.all.txtSpellCode.value=ret 
end function 
getpychar=char 
end if 
end function 
spellCode.vbs 
'获取汉字拼音第一字母 
function getpychar(char) 
dim tmp 
tmp=65536+asc(char) 
if(tmp> =45217 and tmp <=45252) then 
getpychar= "A" 
elseif(tmp> =45253 and tmp <=45760) then 
getpychar= "B" 
elseif(tmp> =45761 and tmp <=46317) then 
getpychar= "C" 
elseif(tmp> =46318 and tmp <=46825) then 
getpychar= "D" 
elseif(tmp> =46826 and tmp <=47009) then 
getpychar= "E" 
elseif(tmp> =47010 and tmp <=47296) then 
getpychar= "F" 
elseif(tmp> =47297 and tmp <=47613) then 
getpychar= "G" 
elseif(tmp> =47614 and tmp <=48118) then 
getpychar= "H" 
elseif(tmp> =48119 and tmp <=49061) then 
getpychar= "J" 
elseif(tmp> =49062 and tmp <=49323) then 
getpychar= "K" 
elseif(tmp> =49324 and tmp <=49895) then 
getpychar= "L" 
elseif(tmp> =49896 and tmp <=50370) then 
getpychar= "M" 
elseif(tmp> =50371 and tmp <=50613) then 
getpychar= "N" 
elseif(tmp> =50614 and tmp <=50621) then 
getpychar= "O" 
elseif(tmp> =50622 and tmp <=50905) then 
getpychar= "P" 
elseif(tmp> =50906 and tmp <=51386) then 
getpychar= "Q" 
elseif(tmp> =51387 and tmp <=51445) then 
getpychar= "R" 
elseif(tmp> =51446 and tmp <=52217) then 
getpychar= "S" 
elseif(tmp> =52218 and tmp <=52697) then 
getpychar= "T" 
elseif(tmp> =52698 and tmp <=52979) then 
getpychar= "W" 
elseif(tmp> =52980 and tmp <=53688) then 
getpychar= "X" 
elseif(tmp> =53689 and tmp <=54480) then 
getpychar= "Y" 
elseif(tmp> =54481 and tmp <=62289) then 
getpychar= "Z" 
else '如果不是中文，则不处理 
getpychar=char 
end if 
end function