Add query string to views pager in drupal 7

How to set additional value as parameter in views pager?
By default, the pager links in views looks like 'http://www.sample.com/sample?page=2'.
I want to make url like 'http://www.sample.com/sample?page=2&type=grid'.
I tried to use hook_views_pre_build(). But it didn't made any changes.

function phponwebsites_views_pre_build(&$view){
  if ($view->name == 'review_by_articles') {
     $view->set_items_per_page('10');
     $view->query = array('type' => 'popular');
  }
}

But i can't get correct answer as i expected.