[eluser]osci[/eluser]
Maybe defining in function
Code:
function search($search_type = 'Title_book')
change a little your post
if there is no post use $search_type from function failing to your default in case this is not passed too.
Code:
if (isset($type) & ($type <> NULL))
{
$search_type=$type;
}
use the 4th segment for $start_row
set config for 4th segment and change a little base_url
Code:
$config['uri_segment']=4;
$config['base_url'] = site_url().'/site/search/'.$search_type.'/';
Edit: This topic is not about a bug of course. Maybe that's why you didn't get help in here. You should post this in core or reactor forum.