not a problem. first off, on your website, you will need to code out an appropriate form. consider something simple like this:
...
<form action="jokes.cgi" method="get">
<input type="radio" name="answer" value="1">Answer 1
<input type="radio" name="answer" value="2">Answer 2
<input type="radio" name="answer" value="3">Answer 3
<input type="radio" name="answer" value="4">Answer 4
<input type="submit" value="submit answer!">
</form>
...
that particular peice of code will send the poll data to a script named "jokes.cgi" but you can change that to whatever your script is named. The data will be sent through the querystring, in this form:
jokes.cgi?answer=x
where X is the value of the radio button, from 1 to 4.
next, your script (i assume you are looking for perl because this is the perl forum, but i could also walk you through the steps to do this in other languages if you prefer) should look something like this:
...
#get the value from the query string, and url-decode it
$buffer = $ENV{'QUERY_STRING'};
($name, $answer) = split(/=/, $buffer);
#read the poll data from an external data file
open(POLL1, "/path/to/poll/data");
@POLL = <POLL1>;
close(POLL);
#update the poll data
@POLL[$answer - 1] += 1;
#Open the data file again for write access (erase the file) and write
#the poll data to the file
open(POLL2, ">/same/path/to/data/file");
print <POLL2> @POLL;
close(POLL2);
...
(i threw this code together really quick, so it probably wont work without a little debugging)
now, when you click the "submit" button on your form, the data will be sent to "jokes.cgi," and jokes.cgi will keep a running tally in an unformatted textfile somewhere that you specify. if you want jokes.cgi to print out the results to a webpage afterwards, you should append a blurb like this to the end of your jokes.cgi script:
...
#this assumes the data is still in @POLL
print << "END_OF_HTML";
<html>
<body>
people who picked answer 1: $POLL[0]</p>
people who picked answer 2: $POLL[1]</p>
people who picked answer 3: $POLL[2]</p>
people who picked answer 4: $POLL[3]</p>
</body>
</html>
END_OF_HTML
...
i think that should do it for you. Good luck!