Nonce in ajax request

Hi have som problems with nonce my function i can not make it work.
Maybe there are some there can see whats what i am doing wrong.

function ajax_(hidden)_update_top_banner() {
    global $wpdb;
      $table_name = $wpdb->prefix . "topbanner";

      if ( isset( $_REQUEST['name_of_nonce_field'] ) && $_POST['name_of_nonce_field'], 'name_of_my_action' ) ) {

  $(hidden)_top_banner_name                  = wp_kses_post($_REQUEST['(hidden)_top_banner_name']);
  $(hidden)_top_banner_name_color            = sanitize_hex_color($_REQUEST['(hidden)_top_banner_name_color']);
  $(hidden)_top_banner_name_top_text_line    = sanitize_text_field($_REQUEST['(hidden)_top_banner_name_top_text_line']);
  $(hidden)_top_banner_name_top_height       = sanitize_text_field($_REQUEST['(hidden)_top_banner_name_top_height']);
  $(hidden)_top_banner_name_top_start_date   = sanitize_text_field($_REQUEST['(hidden)_top_banner_name_top_start_date']);
  $(hidden)_top_banner_name_top_stop_date    = sanitize_text_field($_REQUEST['(hidden)_top_banner_name_top_stop_date']);
  $(hidden)_top_banner_name_media            = sanitize_text_field($_REQUEST['(hidden)_top_banner_name_media']);
  $(hidden)_image_attachment_id              = sanitize_text_field($_REQUEST['(hidden)_image_attachment_id']);
  $id																					= $_REQUEST['id'];

$wpdb->update(
$table_name,
array(
      '(hidden)_top_banner_name'                   => $(hidden)_top_banner_name,
      '(hidden)_top_banner_name_color'             => $(hidden)_top_banner_name_color,
      '(hidden)_top_banner_name_top_text_line'     => $(hidden)_top_banner_name_top_text_line,
      '(hidden)_top_banner_name_top_height'        => $(hidden)_top_banner_name_top_height,
      '(hidden)_top_banner_name_top_start_date'    => $(hidden)_top_banner_name_top_start_date,
      '(hidden)_top_banner_name_top_stop_date'     => $(hidden)_top_banner_name_top_stop_date,
      '(hidden)_top_banner_name_media'             => $(hidden)_top_banner_name_media,
      '(hidden)_image_attachment_id'               => $(hidden)_image_attachment_id,
),

array( 'id' => $id ),
array(
  '%s',
  '%s',
      '%s',
      '%s',
      '%s',
      '%s',
      '%s',
      '%d',
),
array( '%d' )
);
} else {
  print 'Sorry, your nonce did not verify. It is a secure WordPress site. go get a coffee !!';
  exit;
  }

      // Always die in functions echoing ajax content
     die();
}

  add_action( 'wp_ajax_ajax_(hidden)_update_top_banner', 'ajax_(hidden)_update_top_banner' );

<form method="post" action="">
    <div class="plugin_(hidden)_banner">
        <div><label for="(hidden)_top_banner_name"><b>Banner tekst</b></label></div>
        <?php

                  $(hidden)_top_banner_name = $(hidden)_top_banner->(hidden)_top_banner_name;
        wp_editor( $(hidden)_top_banner_name, '(hidden)_top_banner_name'.$(hidden)_top_banner->id.'', array(
            'wpautop'       => true,
            'media_buttons' => true,
            'textarea_rows' => 1,
        ) );?>
				<div class="edit_line_height_container">
				<b>Height p? banner linjen</b> <input type="number" maxlength="4" size="4" name="(hidden)_top_banner_name_top_height<?php echo $(hidden)_top_banner->id; ?>" id="(hidden)_top_banner_name_top_height<?php echo $(hidden)_top_banner->id; ?>" value="28">
				<b>Tekst linje h?jde</b> <input type="text" size="4" name="(hidden)_top_banner_name_top_text_line<?php echo $(hidden)_top_banner->id; ?>" id="(hidden)_top_banner_name_top_text_line<?php echo $(hidden)_top_banner->id; ?>" value="1.8">
			</div>
    </div>
    <div class="plugin_(hidden)_top_banner">
      <div><label><b>Baggrundsfarve</b><br></label><input type="text" class="color-picker" data-alpha="true" name="(hidden)_top_banner_name_color<?php echo $(hidden)_top_banner->id; ?>" id="(hidden)_top_banner_name_color<?php echo $(hidden)_top_banner->id; ?>" value="<?php echo $(hidden)_top_banner->(hidden)_top_banner_name_color; ?>" />
        <button type="submit" name="submit_delete<?php echo $(hidden)_top_banner->id; ?>" id="submit_delete<?php echo $(hidden)_top_banner->id; ?>">Slet banner</button>
        </div>

        <label><b>Baggrundsbillede</b></label>
        <div class='image-preview-wrapper<?php echo $(hidden)_top_banner->id; ?>'>
			<img id='image-preview<?php echo $(hidden)_top_banner->id; ?>' src='<?php echo $(hidden)_top_banner->(hidden)_top_banner_name_media; ?>' width='100%'>
		</div>
    <label><b>Vis billede</b></label>
        <input type='checkbox' name="(hidden)_top_banner_name_media<?php echo $(hidden)_top_banner->id; ?>" id="(hidden)_top_banner_name_media<?php echo $(hidden)_top_banner->id; ?>" value="<?php echo $(hidden)_top_banner->(hidden)_top_banner_name_media; ?>" checked />
		<input id="upload_image_button<?php echo $(hidden)_top_banner->id; ?>" type="button" class="button" value="<?php _e( 'Upload banner billede' ); ?>" />

        <div><b>Start</b></div>
        <input type="text" class="date_picker plugin_(hidden)_top_banner_dato" name="(hidden)_top_banner_name_top_start_date<?php echo $(hidden)_top_banner->id; ?>" id="(hidden)_top_banner_name_top_start_date<?php echo $(hidden)_top_banner->id; ?>" value="<?php echo $(hidden)_top_banner->(hidden)_top_banner_name_top_start_date; ?>">

        <div><b>Slut</b></div>
        <input type="text" class="date_picker plugin_(hidden)_top_banner_dato" name="(hidden)_top_banner_name_top_stop_date<?php echo $(hidden)_top_banner->id; ?>" id="(hidden)_top_banner_name_top_stop_date<?php echo $(hidden)_top_banner->id; ?>" value="<?php echo $(hidden)_top_banner->(hidden)_top_banner_name_top_stop_date; ?>"><br><br>
        <input type="hidden" name="id" id="id" value="<?php echo $(hidden)_top_banner->id; ?>">
<?php wp_nonce_field( 'name_of_my_action', 'name_of_nonce_field' ); ?>
        
    <input type="submit" name="submit_update<?php echo $(hidden)_top_banner->id; ?>" id="submit_update<?php echo $(hidden)_top_banner->id; ?>" value="Gem ?ndringer" class="button-primary">
	</div>
        </form>

Best regards
Morten

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