One liners make me nervous, so here is a way to get at all the html files in a directory, works on windows with ActiveState, maybe works on unix as well... hope this helps! 
#use strict;
#use warnings;

my ($dirname, $file, %words);

opendir(DIR, ".") or die "can't opendir $dirname: $!";

while (defined($file = readdir(DIR))) {
    if ($file =~ /\.html?/) {
        open my $F, $file or die "Could not open $file\n";
        while (<$F>) {
        #do stuff
        s/
            (?<=                  # Look back-group
             weak                # Match the word weak
             <INPUT TYPE=radio NAME=     # tag
             (                   # Capuring group: $1 / \1
               \w{2}\d\w{2}      # 
             )                   # End-capture
             VALUE=\d>           # tag
         
             (?:                 # Non capturing group
               <INPUT TYPE=radio NAME=     # tag
               \1                # It's possible that this should be $
+1, as I said, the code is untested.
               VALUE=\d>
             ){6}                # There are 7 input tags, one already
+ matches, so 6 to go.
             )                   # End look-back
             (?=                 # Look-ahead-group
               strong
             )                   # End look-ahead
           /
             the text you want to insert
           /ixg;
        }
        close $F;
        }
}
closedir(DIR);

[download]
UPDATE: Integrated holli's fix and animator's regex code from below. (untested!)

In reply to Re: A text replacement question by tphyahoo
in thread A text replacement question by steamerboy

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.