find/match not working

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I have a list of urls, contained in urllist like:
urllist[1], urllist[2]..urllist[x]

and i tried eliminating duplicates before they are added, by using find, which 
didn't work. Now i am using 

found = 0
for loop = 1 to length(urllist) do
  if match(junk,urllist[loop]) then
     found = 1
     exit
   end if
 end for
 if not found then
   urllist = urllist & {junk}
  end if

And darned if i still don't get duplicates. I do trim off leading and trailing 
spaces from junk. Why is this happening?

Kat

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