[arkkhoax]

Hey! I'm having a small problem with a custom question that defaults to the users age. I'm having problems validating the input when the form is submitted.

For my custom question I have this code (this part works):

PHP Code:

list($month,$day,$year) = explode("-",$vbulletin->userinfo['birthday']);
$year_diff  = date("Y") - $year;
$month_diff = date("m") - $month;
$day_diff   = date("d") - $day;
if ($month_diff < 0) $year_diff--;
elseif (($month_diff==0) && ($day_diff < 0)) $year_diff--;
$realage = $year_diff;

$answer = '<input type="text" id="q_' . $formbit[id] . '" name="' . $formbit[id] . '" value="' . $realage . '" />'; 


I want the user to be able to change the age I default the question to. I also want to make sure that input is a valid number so I wrote a few lines to do that.

In the "Before Submit" area I have this: (my custom question has an id of 15)

PHP Code:

$q[15] = (int)$q[15]; //make sure we only have a number
if($q[15] < 18) $q[15] = 18;
if($q[15] > 120) $q[15] = 120; 


Here is where the problem comes in! When the forum is submitted or previewed the text in the age field shows up but my "Before Submit" code does not take effect. So if I were to type "cool" in the age field it shows "cool" in the preview instead of showing 18 as I would expect (type casting 'cool' to an int should return zero, zero is less than 18 so it should be set to 18).

Any help would be great! I'm sure it's just something little I am missing. I know what I am doing may seem a little silly out of context but I want it to work this way.