<%
function filtestr(str) '去掉字符串的雙引號和&,@,等
str=replace(str,"""","")
str=replace(str,"“","")
str=replace(str,"”","")
str=replace(str,"‘","")
str=replace(str,"’","")
'str=replace(str,"'","") '單引號
str=replace(str,"&","")
str=replace(str,"@","")
filtestr=str
end function

function htmltocode(str) '轉換html代碼
if not isnull(str) then
    str=replace(str, ">", "&gt;")
    str=replace(str, "<", "&lt;")
    str=replace(str, chr(32), "&nbsp;")
    str=replace(str, chr(9), "&nbsp;")
    str=replace(str, chr(34), "&quot;")
    str=replace(str, chr(39), "&#39;")
    str=replace(str, chr(13), "")
    str=replace(str, chr(10) & chr(10), "</p><p> ")
    str=replace(str, chr(10), "<br> ")
    htmltocode=str
end if
end function

function codetohtml(str) '還原html代碼
if not isnull(str) then
    str=replace(str, "&gt;", ">")
    str=replace(str, "&lt;", "<")
    str=replace(str,  "&nbsp;"," ")
    str=replace(str, "&quot;", chr(34))
    str=replace(str, "&#39;", chr(39))
    str=replace(str, "</p><p> ",chr(10) & chr(10))
    str=replace(str, "<br> ", chr(10))
    codetohtml=str
end if
end function

function leftchar(str,charnum) '//截取字符串
charnum=int(charnum)
if charnum=0 then
leftchar=str
else
if getlen(str)>charnum then
leftchar=left(str,0.5*charnum)&"..."
else
leftchar=str
end if
end if
end function

function getlen(str) '//計算字符串長度，漢字一個算兩個
  if trim(str)="" or isnull(str) then 
   getlen=0
  else
   dim p_len,x
   p_len=0
   getlen=0
   p_len=len(trim(str))
   for x=1 to p_len
    if asc(mid(str,x,1))<0 then
     getlen=int(getlen) + 2
    else
     getlen=int(getlen) + 1
    end if
   next
  end if
 end function
%>