<%
function getFileExtName(fileName)
dim pos
pos=instrrev(filename,".")
if pos>0 then
getFileExtName=mid(fileName,pos+1)
else
getFileExtName=""
end if
end function

function gotTopic(str,strlen)
dim l,t,c
l=len(str)
t=0
for i=1 to l
c=Abs(Asc(Mid(str,i,1)))
if c>255 then
t=t+2
else
t=t+1
end if
if t>=strlen then
gotTopic=left(str,i)&""
exit for
else
gotTopic=str&""
end if
next
end function
%>