Actually, it looks like the html code is off.

<input type=radio name="dashboard" id="dashboard2" value="">2

Here, if someone clicks this button, the value assigned is blank (value=""). It seems like you're using id the way you really wanted to use value...

<input type="radio" name="dashboard" value="dashboard1">1
<input type="radio" name="dashboard" value="dashboard2">2
<input type="radio" name="dashboard" value="dashboard3">3
<input type="radio" name="dashboard" value="dashboard4">4
<input type="radio" name="dashboard" value="dashboard5">5
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Is there a reason why you're not using CGI.pm to generate your form code?

my %radio_field_values = (
    'dashboard1' => 1,
    'dashboard2' => 2,
    'dashboard3' => 3,
    'dashboard4' => 4,
    'dashboard5' => 5,
);

print radio_group(
    -name   => 'dashboard',
    -labels => \%radio_field_values,
    -values => [ keys %radio_field_values ],
);
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