<?php
$args = array(
    'smallest'                  => 8,
    'largest'                   => 22,
    'unit'                      => 'pt',
    'number'                    => 45,
    'format'                    => 'flat',
    'orderby'                   => 'name',
    'order'                     => 'ASC',
    'exclude'                   => null,
    'include'                   => null,
    'topic_count_text_callback' => default_topic_count_text,
    'link'                      => 'view',
    'taxonomy'                  => 'post_tag',
    'echo'                      => true );

  wp_tag_cloud( $args );
 ?>