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<FORM ACTION="yourscript.pl" METHOD="POST">
<!-- insert other form inputs here -->
...
<INPUT TYPE="SUBMIT" NAME="Action" VALUE="Run Bar">
<INPUT TYPE="SUBMIT" NAME="Action" VALUE="Store Event">
</FORM>

use CGI qw/:standard/;

...
        h1 'you have to call this from the form!',
        end_html;
}