Advertising area widget – is it possible to display 3 or more pictures

I got it! there were some lines missing…here the correct code for 4 images, is others want to use it:

/**
 * AVIA ADVERTISING WIDGET - 4 Pictures
 *
 * Widget that retrieves, stores and displays the number of twitter and rss followers
 *
 * @package AviaFramework
 * @todo replace the widget system with a dynamic one, based on config files for easier widget creation
 */
 
 
//multiple images
if (!class_exists('avia_partner_widget'))
{
        class avia_partner_widget extends WP_Widget {
 
                function avia_partner_widget() {
 
                        $this->add_cont = 4;
                        //Constructor
                        $widget_ops = array('classname' => 'avia_partner_widget', 'description' => 'An advertising widget that displays 4 images with 125 x 125 px in size' );
                        $this->WP_Widget( 'avia_partner_widget', THEMENAME.' Advertising Area', $widget_ops );
                }
 
                function widget($args, $instance)
                {
                        extract($args, EXTR_SKIP);
                        echo $before_widget;
 
                        global $kriesiaddwidget, $firsttitle;
                        $kriesiaddwidget ++;
 
                        $title = empty($instance['title']) ? '' : apply_filters('widget_title', $instance['title']);
                        $image_url = empty($instance['image_url']) ? '<span class="avia_parnter_empty"><span>'.__('Advertise here','avia_framework').'</span></span>' : '<img class="rounded" src="'.$instance['image_url'].'" title="" alt=""/>';
                        $ref_url = empty($instance['ref_url']) ? '#' : apply_filters('widget_comments_title', $instance['ref_url']);
                        $image_url2 = empty($instance['image_url2']) ? '<span class="avia_parnter_empty"><span>'.__('Advertise here','avia_framework').'</span></span>' : '<img class="rounded" src="'.$instance['image_url2'].'" title="" alt=""/>';
                        $ref_url2 = empty($instance['ref_url2']) ? '#' : apply_filters('widget_comments_title', $instance['ref_url2']);
                        $image_url3 = empty($instance['image_url3']) ? '<span class="avia_parnter_empty"><span>'.__('Advertise here','avia_framework').'</span></span>' : '<img class="rounded" src="'.$instance['image_url3'].'" title="" alt=""/>';
                        $ref_url3 = empty($instance['ref_url3']) ? '#' : apply_filters('widget_comments_title', $instance['ref_url3']);
                        $image_url4 = empty($instance['image_url4']) ? '<span class="avia_parnter_empty"><span>'.__('Advertise here','avia_framework').'</span></span>' : '<img class="rounded" src="'.$instance['image_url4'].'" title="" alt=""/>';
                        $ref_url4 = empty($instance['ref_url4']) ? '#' : apply_filters('widget_comments_title', $instance['ref_url4']);
 
                        if ( !empty( $title ) ) { echo $before_title . $title . $after_title; };
                        echo '<a target="_blank" href="'.$ref_url.'" class="preloading_background  avia_partner1 link_list_item'.$kriesiaddwidget.' '.$firsttitle.'" >'.$image_url.'</a>';
                        if($this->add_cont == 4) echo '<a target="_blank" href="'.$ref_url2.'" class="preloading_background avia_partner2 link_list_item'.$kriesiaddwidget.' '.$firsttitle.'" >'.$image_url2.'</a>';
             echo '<a target="_blank" href="'.$ref_url3.'" class="preloading_background avia_partner2 link_list_item'.$kriesiaddwidget.' '.$firsttitle.'" >'.$image_url3.'</a>';
                        echo '<a target="_blank" href="'.$ref_url4.'" class="preloading_background avia_partner2 link_list_item'.$kriesiaddwidget.' '.$firsttitle.'" >'.$image_url4.'</a>';
						echo $after_widget;
 
                        if($title == '')
                        {
                                $firsttitle = 'no_top_margin';
                        }
 
                }
 
 
                function update($new_instance, $old_instance) {
                        //save the widget
                        $instance = $old_instance;
                        foreach($new_instance as $key=>$value)
                        {
                                $instance[$key] = strip_tags($new_instance[$key]);
                        }
                        return $instance;
                }
 
 
 
                function form($instance)
                {
                        $instance = wp_parse_args( (array) $instance, array( 'title' => '', 'image_url' => '', 'ref_url' => '', 'image_url2' => '', 'ref_url2' => '', 'image_url3' => '', 'ref_url3' => ''  ) );
                        $title = strip_tags($instance['title']);
                        $image_url = strip_tags($instance['image_url']);
                        $ref_url = strip_tags($instance['ref_url']);
                        $image_url2 = strip_tags($instance['image_url2']);
                        $ref_url2 = strip_tags($instance['ref_url2']);
                        $image_url3 = strip_tags($instance['image_url3']);
                        $ref_url3 = strip_tags($instance['ref_url3']);
						 $image_url4 = strip_tags($instance['image_url4']);
                        $ref_url4 = strip_tags($instance['ref_url4']);
        ?>
                        <p><label for="<?php echo $this->get_field_id('title'); ?>">Title:
                        <input class="widefat" id="<?php echo $this->get_field_id('title'); ?>" name="<?php echo $this->get_field_name('title'); ?>" type="text" value="<?php echo esc_attr($title); ?>" /></label></p>
 
                        <p><label for="<?php echo $this->get_field_id('image_url'); ?>">Image URL: <?php if($this->add_cont == 2) echo "(125px * 125px):"; ?>
                        <input class="widefat" id="<?php echo $this->get_field_id('image_url'); ?>" name="<?php echo $this->get_field_name('image_url'); ?>" type="text" value="<?php echo esc_attr($image_url); ?>" /></label></p>
 
                        <p><label for="<?php echo $this->get_field_id('ref_url'); ?>">Referal URL:
                        <input class="widefat" id="<?php echo $this->get_field_id('ref_url'); ?>" name="<?php echo $this->get_field_name('ref_url'); ?>" type="text" value="<?php echo esc_attr($ref_url); ?>" /></label></p>
 
                        <?php if($this->add_cont == 4)
                        { ?>
 
                                        <p><label for="<?php echo $this->get_field_id('image_url2'); ?>">Image URL 2: (125px * 125px):
                        <input class="widefat" id="<?php echo $this->get_field_id('image_url2'); ?>" name="<?php echo $this->get_field_name('image_url2'); ?>" type="text" value="<?php echo esc_attr($image_url2); ?>" /></label></p>
 
                        <p><label for="<?php echo $this->get_field_id('ref_url2'); ?>">Referal URL 2:
                        <input class="widefat" id="<?php echo $this->get_field_id('ref_url2'); ?>" name="<?php echo $this->get_field_name('ref_url2'); ?>" type="text" value="<?php echo esc_attr($ref_url2); ?>" /></label></p>
           
						<p><label for="<?php echo $this->get_field_id('image_url3'); ?>">Image URL 3: (125px * 125px):
                        <input class="widefat" id="<?php echo $this->get_field_id('image_url3'); ?>" name="<?php echo $this->get_field_name('image_url3'); ?>" type="text" value="<?php echo esc_attr($image_url3); ?>" /></label></p>
 
                        <p><label for="<?php echo $this->get_field_id('ref_url3'); ?>">Referal URL 3:
                        <input class="widefat" id="<?php echo $this->get_field_id('ref_url3'); ?>" name="<?php echo $this->get_field_name('ref_url3'); ?>" type="text" value="<?php echo esc_attr($ref_url3); ?>" /></label></p>
						
						<p><label for="<?php echo $this->get_field_id('image_url4'); ?>">Image URL 4: (125px * 125px):
                        <input class="widefat" id="<?php echo $this->get_field_id('image_url4'); ?>" name="<?php echo $this->get_field_name('image_url4'); ?>" type="text" value="<?php echo esc_attr($image_url4); ?>" /></label></p>
 
                        <p><label for="<?php echo $this->get_field_id('ref_url4'); ?>">Referal URL 4:
                        <input class="widefat" id="<?php echo $this->get_field_id('ref_url4'); ?>" name="<?php echo $this->get_field_name('ref_url4'); ?>" type="text" value="<?php echo esc_attr($ref_url4); ?>" /></label></p>
 
                        <?php }?>
 
        <?php
                }
        }
}
 
 
 
if (!class_exists('avia_one_partner_widget'))
{
        //one image
        class avia_one_partner_widget extends avia_partner_widget
        {
                function avia_one_partner_widget()
                {
 
                        $this->add_cont = 1;
 
                        $widget_ops = array('classname' => 'avia_one_partner_widget', 'description' => 'An advertising widget that displays 1 big image' );
 
                        $this->WP_Widget( 'avia_one_partner_widget', THEMENAME.' Big Advertising Area', $widget_ops );
                }
        }
}