I'm not sure i understand what you mean when you say "group" but creating those rows of checkboxs shouldn't be too rough.

my @Days = ("Monday","Tuesday","Wednesday","Thursday","Friday","Saturd
+ay","Sunday");
my $html;

foreach my $Day (@Days)
{
 $html .= "<tr>\n\t<td>$Day</td>\n";
 foreach (1...15)
 {
   $html .= "\t<td><input type=checkbox name=$Day$_></td>\n";
 }
 $html .= "</tr>\n";
}
[download]

That generates code almost exactly like the current code. Of course you need to add the beginning of the form, and the table headers, a any formating options.
note: i added the \n and \t just for display purpouses they can obviously be removed.
update: You can remove the $_ from the naming of the boxes to have them be 'groups', i'm not sure how that effects how they are passed though, and you need to add values to distinguish between them :-)

---

Eric Hodges

---

---

• Are you posting in the right place? Check out Where do I post X? to know for sure.
• Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:

  <code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>

• Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
• Want more info? How to link or How to display code and escape characters are good places to start.