gistfile1.php

<?php

//Removing teaser view from a Drupal Node Preview

/** 
 * Overrided default preview output by removing teaser view
**/
function mytheme_preview($node) {
  $output = '<div class="preview">';
  $output .= node_view($node, 0, FALSE, 0);
  $output .= "</div>\n";
  return $output;
}