function htmlencode(str)
on error resume next
dim result
dim l
if isnull(str) then
htmlencode=""
exit function
end if
l=len(str)
result=""
dim i
for i = 1 to l
select case mid(str,i,1)
case "<"
result=result+"&lt;"
case ">"
result=result+"&gt;"
case chr(34)
result=result+"&quot;"
case "&"
result=result+"&amp;"
case chr(13)
result=result+"<br>"
case chr(9)
result=result+"&nbsp;&nbsp;&nbsp;&nbsp;"
case chr(32)
'result=result+"&nbsp;"
if i+1<=l and i-1>0 then
if mid(str,i+1,1)=chr(32) or mid(str,i+1,1)=chr(9) or mid(str,i-1,1)=chr(32) or mid(str,i-1,1)=chr(9) then
result=result+"&nbsp;"
else
result=result+" "
end if
else
result=result+"&nbsp;"
end if
case else
result=result+mid(str,i,1)
end select
next
if err.number<>0 then err.clear
htmlencode=result
end function
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