Code for adding teasers to all pages

[sotiro123]

I'm new to all this so I'm finding it impossible to find an answer to this so hopefully someone can help me.

I found this code on the internet which adds teasers to 1 static page. However, I want to add teasers from posts in a category  to any page I specify.

Any help would be much appreciated.

 

class custom_loop extends thesis_custom_loop {
    function page() {
        if(is_page('thesis-size')) {
              global $thesis_design;
    $thesis_design->home['body']['content']['features'] = 0;
    $thesis_design->display['archives']['style'] = 'teasers';
    $thesis_design->image['thumb']['y'] = 'before-headline';
    $thesis_design->teasers['options']['date']['show'] = 1;
    $thesis_design->teasers['options']['excerpt']['show'] = 1;
    $thesis_design->teasers['options']['edit']['show'] = 0;  
            global $wp_query;
            $saved_query = $wp_query;
            thesis_loop::page();
            wp_reset_query();
            $args = array('category_in' => array(199,186));
            $loop = query_posts("cat=199");
            thesis_loop::home();
            wp_reset_query();
            $wp_query = $saved_query;
        } else 
            thesis_loop::page();
    }
}
$custom_loop = new custom_loop();