The WP loop

<?php
    $limit = $atts['limit'] ? $atts['limit'] : 0;
    $imgWidth = $atts['imgwidth'] ? $atts['imgwidth'] : "80";
    $showImg = $atts['showimage'] == 'false' ? false : true;
    $columns = isset($atts['columns']) ? $atts['columns'] : '4';
    $args = array(
        'cat' => $atts['category'],
        'category_name' => $atts['slug'],
        'tag' => $atts['tags'],
        'post_type' => 'post',
        'posts_per_page' => (isset($atts['limit']) ? $atts['limit'] : 6),
        'order' => $atts['order'],
        'orderby' => $atts['orderby']
    );
    $wp_q = new WP_Query($args);
    $ResponsiveCounter = 1;
    while($wp_q->have_posts())
    {
        $wp_q->the_post();
        $post_class = '';
        if($ResponsiveCounter == 1)
            $post_class .= ' left-fit';
        if($columns == '4')
            $post_class .= ' grid col-220';
        else if($columns == '3')
            $post_class .= ' grid col-300';
        else if($columns == '2')
            $post_class .= ' grid col-460';
        if(($columns == '2' && $ResponsiveCounter == 2) || ($columns == '3' && $ResponsiveCounter == 3) || ($columns == '4' && $ResponsiveCounter == 4)){
            $post_class .= ' fit';
            $ResponsiveCounter = 0;
        }
        echo '<div class="'.$post_class.'">';
        $id = $wp_q->post->ID;
        $myimage_html = '';
        if($atts['hidetext'] == 'true')
            echo '<li><a href="'.get_permalink($wp_q->post->ID).'">'.$wp_q->post->post_title.'</a></li>';
        else
            echo '<div id="nw_post_'.$id.'" class="plnaslov"><a href="'.get_permalink($wp_q->post->ID).'"><h4>'.$wp_q->post->post_title.'</h4></a></div>';
        if($showImg)
            $myimage_html = my_get_first_image($id);

        echo '<div class="plcontent">';
        if($myimage_html != '')
            $myimage_html .= '<br>';
        echo $myimage_html.get_the_excerpt();
        echo '</div>';
        echo '</div>';
        $ResponsiveCounter++;
    }
?>