[Xenon]

you don't really need a hack for that

just create two custom profile fields called Timeformat and date format, both edigtable by users

and then in your phpinclude_start put something like that:

PHP Code:

// ############ Timeformat as uservalue #################
if (trim($bbuserinfo['field10']) != '')
{
    $vboptions['timeformat'] = $bbuserinfo['field10'];
}
if (trim($bbuserinfo['field11']) != '')
{
    $vboptions['dateformat'] = $bbuserinfo['field11'];
} 


just change the field numbers