module CGI::HtmlExtension

"VALUES" => [["1", "Foo"], ["2", "Bar", true], "Baz"])
checkbox_group("NAME" => "name",

"VALUES" => [["foo"], ["bar", true], "baz"])
checkbox_group("NAME" => "name",

"VALUES" => ["foo", "bar", "baz"])
checkbox_group("NAME" => "name",

# Baz
# Bar
# Foo
checkbox_group("name", ["1", "Foo"], ["2", "Bar", true], "Baz")

# baz
# bar
# foo
checkbox_group("name", ["foo"], ["bar", true], "baz")

# baz
# bar
# foo
checkbox_group("name", "foo", "bar", "baz")

(defaults to false).
to the same as the label), or the boolean checked element
array, by omitting either the value element (defaults
Each value can also be specified as a two-element

checkbox is CHECKED.
label; and the third is a boolean specifying whether this
The first element is the VALUE attribute; the second is the
Each value can also be specified as a three-element array.

same effect.
for that checkbox. A single-element array has the
as the value of the VALUE attribute and as the label
can be specified as a String, which will be used both
There will be one checkbox for each value. Each value
Each checkbox is followed by a label.
The checkboxes will all have the same +name+ attribute.

Generate a sequence of checkbox elements, as a String.

def checkbox_group(name = "", *values)
  if name.kind_of?(Hash)
    values = name["VALUES"]
    name = name["NAME"]
  end
  values.collect{|value|
    if value.kind_of?(String)
      checkbox(name, value) + value
    else
      if value[-1] == true || value[-1] == false
        checkbox(name, value[0],  value[-1]) +
        value[-2]
      else
        checkbox(name, value[0]) +
        value[-1]
      end
    end
  }.join
end