Send data to a view with out reloading content?

[eluser]sico87[/eluser]
I am creating a site where users can upload there own background images, after upload they see each background they uploaded in a menu represented by a number, clicking on the number will in theory load in the new background, however I have noticed that does this calls in the view again as well (the view is already loaded from another function, is there a ways I can pass the data to the view without loading the view, can I do it with ajax? if so how?

My code currently

Code:

public function set_background() {
        $this->load->model('image_model');
        if($query = $this->image_model->get_background_by_id($this->uri->segments[3])) {
            if($query) {
                $data['new_background'] = $query;
            }
        }
        $this->load->view('template/background-select', $data);
    }

My Model:

Code:

public function get_background_by_id($background_id) {
    $this->db->select('background_name');
    $this->db->from('background');
    $this->db->where('background_id', $background_id);

    $query = $this->db->get();
    return $query->result_array();
}

My View

<div id="background-select">

Code:

<?php
        $count = 0;
            if(isset($special)) {
                foreach ($special as $row) {
                    $count ++;
                    print '<div class="select">';
                        print "<a class='background_btn' href='index.php/home/set_background/".$row['>$count</a>";
                    print '</div>';
                    if($count == 1) {
                        $background = $row['background_name'];
                    }

                }
            }
            if(isset($generic)) {
                foreach ($generic as $row) {    
                    $count ++;
                    print '<div class="select">';
                        print "<a class='background_btn' href='index.php/home/set_background/".$row['>$count</a>";
                    print '</div>';
                    if($count == 1) {
                        $background = $row['background_name'];
                    }

                }
            }
            if(isset($user_background)) {
                foreach ($user_background as $row) {
                $count ++;
                    print '<div class="select">';
                        print "<a class='background_btn' href='index.php/home/set_background/".$row['>$count</a>";
                    print '</div>';
                    if($count == 1) {
                        $background = $row['background_name'];
                    }

                }
            }
        ?&gt;
    </div>
    <div id="wrapper" style=&lt;?php echo"background:url(/media/uploads/backgrounds/".$background.");";?&gt;>

The view gets loaded in originally here

Code:

public function index() {
    //  $this->output->enable_profiler(TRUE);
        $data = array();
        if($query = $this->category_model->get_all_online()) {
            $data['main_menu'] = $query;
        }
        $this->load->model('image_model');
        /*
        * Sort out the users backgrounds, basically do a check to see if there is a 'special' background
        * if there is not a 'special' background then IF the user is logged in and has a background of there
        * own show that one, if not show a generic one, if they are not logged in show a bang one
        */
        $image = array();
        if ($query = $this->image_model->get_special_backgrounds()) {
            $image['special'] = $query;
        } elseif(!isset($image['special']) && !isset($this->session->userdata['user_id'])) {
            if($query = $this->image_model->get_bang_background()) {
                $image['generic'] = $query;
            }
        }

        if(isset($this->session->userdata['user_id'])) {
            if($query = $this->image_model->get_user_backgrounds($this->session->userdata['user_id'])) {
                $image['user_background'] = $query;
            }
        }
        $data = array_merge($data, $image);
        $this->load->view('home/main_page.php', array_merge($data, $image));
    }

Hope someone can help thanks