[Snippet for theme_breadcrumb] #d7

template.php

/**
 * Implements theme_breadcrumb().
 */
function THEME_breadcrumb(&$vars) {
  $breadcrumb = $vars['breadcrumb'];
  if (!empty($breadcrumb)) {
    $output = '<h2 class="element-invisible">' . t('You are here') . '</h2>';
    $breadcrumb_separator = '<span class="separator"> &raquo; </span>';
    $output .= '<div class="breadcrumb">' . implode($breadcrumb_separator, $breadcrumb) . '</div>';
    return $output;
  }
}