$last_photo || !is_numeric($photo_cod))
{
$actual_photo = 0;
}
else
{
$actual_photo = $photo_cod;
}
}
else
{
$actual_photo = 0;
}
//functions
function next_photo($actual, $last){
if($actual < $last)
{
$actual = ($actual * 1) + 1;
}
else
{
$actual = 0;
}
return $actual;
};
function prev_photo($actual, $last){
if($actual > 0)
{
$actual = ($actual * 1) - 1;
}
else
{
$actual = $last;
}
return $actual;
};
?>
