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ampache/lib/ui.lib.php

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<?php
/*
Copyright (c) Ampache.org
All rights reserved.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License v2
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/**
* UI Function Library
* This contains functions that are generic, and display information
* things like a confirmation box, etc and so forth
* @package Web Interface
* @catagory Library
*/
/**
* show_confirmation
* shows a confirmation of an action
* $next_url Where to go next
* $title The Title of the message
* $text The details of the message
* $cancel T/F show a cancel button that uses return_referrer()
*/
function show_confirmation($title,$text,$next_url,$cancel=0,$form_name='confirmation') {
if (substr_count($next_url,Config::get('web_path'))) {
$path = $next_url;
}
else {
$path = Config::get('web_path') . "/$next_url";
}
require Config::get('prefix') . '/templates/show_confirmation.inc.php';
} // show_confirmation
/**
* flip_class
* takes an array of 2 class names
* and flips them back and forth and
* then echo's out [0]
*/
function flip_class($array=0) {
static $classes = array();
if ($array) {
$classes = $array;
}
else {
$classes = array_reverse($classes);
return $classes[0];
}
} // flip_class
/**
* _
* checks to see if the alias _ is defined
* if it isn't it defines it as a simple return
*/
if (!function_exists('_')) {
function _($string) {
return $string;
} // _
} // if _ isn't defined
/**
* ngettext
* checks for ngettext and defines it if it doesn't exist
*/
if (!function_exists('ngettext')) {
function ngettext($string) {
return $string;
}
} // if no ngettext
/**
* access_denied
* throws an error if they try to do something
* that they aren't allowed to
*/
function access_denied() {
// Clear any crap we've got up top
ob_end_clean();
require_once Config::get('prefix') . '/templates/show_denied.inc.php';
exit;
} // access_denied
/**
* return_referer
* returns the script part of the referer address passed by the web browser
* this is not %100 accurate. Also because this is not passed by us we need
* to clean it up, take the filename then check for a /admin/ and dump the rest
*/
function return_referer() {
$referer = $_SERVER['HTTP_REFERER'];
if (substr($referer, -1)=='/'){
$file = 'index.php';
}
else {
$file = basename($referer);
/* Strip off the filename */
$referer = substr($referer,0,strlen($referer)-strlen($file));
}
if (substr($referer,strlen($referer)-6,6) == 'admin/') {
$file = 'admin/' . $file;
}
return $file;
} // return_referer
/**
* show_alphabet_list
* shows the A-Z,0-9 lists for albums and artist page
* It takes a selected and an action
*/
function show_alphabet_list () {
$list = array(A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,1,2,3,4,5,6,7,8,9,"0",_('All'));
$selected = $_SESSION['browse']['filter']['alpha_match'];
echo "<div class=\"alphabet\">";
foreach ($list as $l) {
$style_name = "style_" . strtolower($l);
$class = "link";
if ($l==$selected) $class .=" active";
$value = ($l==_('All'))?'':$l;
echo "<span class=\"" . $class . "\" onclick=\"ajaxPut('". Config::get('ajax_url') ."?page=browse&action=browse&amp;key=alpha_match&amp;value=$value');return true;\">" .
$l . "</span>\n";
}
echo "</div>";
} // show_alphabet_list
/**
* truncate_with_ellipsis
* Correct Spelling function that truncates text to a specific lenght
* and appends three dots, or an ellipsis to the end
* @package Web Interface
* @catagory General
* @author Nedko Arnaudov
*/
function truncate_with_ellipsis($text, $max='') {
$max = $max ? $max : '27';
/* If we want it to be shorter than three, just throw it back */
if ($max > 3) {
/* Make sure the functions exist before doing the iconv mojo */
if (function_exists('iconv') && function_exists('iconv_substr') && function_exists('iconv_strlen')) {
if (iconv_strlen($text, Config::get('site_charset')) > $max) {
$text = iconv_substr($text, 0, $max-3, Config::get('site_charset'));
$text .= iconv("ISO-8859-1", Config::get('site_charset'), "...");
}
}
/* Do normal substr if we don't have iconv */
else {
if (strlen($text) > $max) {
$text = substr($text,0,$max-3)."...";
}
} // else no iconv
} // else greater than 3
return $text;
} // truncate_with_ellipsis
/**
* show_header
* This shows the header.inc.php, it may do something
* more in the future
*/
function show_header() {
require_once Config::get('prefix') . '/templates/header.inc.php';
} // show_header
/**
* show_footer
* shows the footer of the page
*/
function show_footer() {
require_once Config::get('prefix') . '/templates/footer.inc.php';
if ($_REQUEST['profiling']) {
Dba::show_profile();
}
} // show_footer
/**
* img_resize
* this automaticly resizes the image for thumbnail viewing
* only works on gif/jpg/png this function also checks to make
* sure php-gd is enabled
*/
function img_resize($image,$size,$type,$album_id) {
/* Make sure they even want us to resize it */
if (!Config::get('resize_images')) {
return $image['raw'];
}
// Already resized
if ($image['db_resized']) {
debug_event('using_resized','using resized image for Album:' . $album_id,'2');
return $image['raw'];
}
$image = $image['raw'];
if (!function_exists('gd_info')) { return false; }
/* First check for php-gd */
$info = gd_info();
if ( ($type == 'jpg' OR $type == 'jpeg') AND !$info['JPG Support']) {
return false;
}
elseif ($type == 'png' AND !$info['PNG Support']) {
return false;
}
elseif ($type == 'gif' AND !$info['GIF Create Support']) {
return false;
}
$src = imagecreatefromstring($image);
if (!$src) {
debug_event('IMG_RESIZE','Failed to create from string','3');
return false;
}
$width = imagesx($src);
$height = imagesy($src);
$new_w = $size['width'];
$new_h = $size['height'];
$img = imagecreatetruecolor($new_w,$new_h);
if (!imagecopyresampled($img,$src,0,0,0,0,$new_w,$new_h,$width,$height)) {
debug_event('IMG_RESIZE','Failed to copy resample image','3');
return false;
}
ob_start();
// determine image type and send it to the client
switch ($type) {
case 'jpg':
case 'jpeg':
imagejpeg($img,null,100);
break;
case 'gif':
imagegif($img);
break;
case 'png':
imagepng($img);
break;
}
// Grab this image data and save it into the thumbnail
$data = ob_get_contents();
ob_end_clean();
// If our image create failed don't save it, just return
if (!$data) {
debug_event('IMG_RESIZE','Failed to resize Art from Album:' . $album_id,'3');
return $image;
}
// Save what we've got
Album::save_resized_art($data,'image/' . $type,$album_id);
return $data;
} // img_resize
/**
* show_genres
* this shows the 'many' genre form, it takes an array of genre objects and the view object
*/
function show_genres($genres,$view) {
require Config::get('prefix') . '/templates/show_genres.inc.php';
} // show_genres
/**
* show_genre
* this shows a single genre item which is basicly just a link to the albums/artists/songs of said genre
*/
function show_genre($genre_id) {
$genre = new Genre($genre_id);
require Config::get('prefix') . '/templates/show_genre.inc.php';
} // show_genre
/**
* get_location
* This function gets the information about said persons currently location
* this is used for A) Sidebar highlighting & submenu showing and B) Titlebar information
* it returns an array of information about what they are currently doing
* Possible array elements
* ['title'] Text name for the page
* ['page'] actual page name
* ['section'] name of the section we are in, admin, browse etc (submenu control)
* @package General
*/
function get_location() {
$location = array();
if (strlen($_SERVER['PHP_SELF'])) {
$source = $_SERVER['PHP_SELF'];
}
else {
$source = $_SERVER['REQUEST_URI'];
}
/* Sanatize the $_SERVER['PHP_SELF'] variable */
$source = ltrim($source, Config::get('raw_web_path'));
$location['page'] = preg_replace("/^\/(.+\.php)\/?.*/","$1",$source);
switch ($location['page']) {
case 'index.php':
$location['title'] = _('Home');
break;
case 'upload.php':
$location['title'] = _('Upload');
break;
case 'localplay.php':
$location['title'] = _('Local Play');
break;
case 'randomplay.php':
$location['title'] = _('Random Play');
break;
case 'playlist.php':
$location['title'] = _('Playlist');
break;
case 'search.php':
$location['title'] = _('Search');
break;
case 'preferences.php':
$location['title'] = _('Preferences');
break;
case 'admin/index.php':
$location['title'] = _('Admin-Catalog');
$location['section'] = 'admin';
break;
case 'admin/catalog.php':
$location['title'] = _('Admin-Catalog');
$location['section'] = 'admin';
break;
case 'admin/users.php':
$location['title'] = _('Admin-User Management');
$location['section'] = 'admin';
break;
case 'admin/mail.php':
$location['title'] = _('Admin-Mail Users');
$location['section'] = 'admin';
break;
case 'admin/access.php':
$location['title'] = _('Admin-Manage Access Lists');
$location['section'] = 'admin';
break;
case 'admin/preferences.php':
$location['title'] = _('Admin-Site Preferences');
$location['section'] = 'admin';
break;
case 'admin/modules.php':
$location['title'] = _('Admin-Manage Modules');
$location['section'] = 'admin';
break;
case 'browse.php':
$location['title'] = _('Browse Music');
$location['section'] = 'browse';
break;
case 'albums.php':
$location['title'] = _('Albums');
$location['section'] = 'browse';
break;
case 'artists.php':
$location['title'] = _('Artists');
$location['section'] = 'browse';
break;
case 'genre.php':
$location['title'] = _('Genre');
$location['section'] = 'browse';
break;
case 'stats.php':
$location['title'] = _('Statistics');
break;
default:
$location['title'] = '';
break;
} // switch on raw page location
return $location;
} // get_location
/**
* show_preference_box
* This shows the preference box for the preferences pages
* it takes a chunck of the crazy preference array and then displays it out
* it does not contain the <form> </form> tags
*/
function show_preference_box($preferences) {
require Config::get('prefix') . '/templates/show_preference_box.inc.php';
} // show_preference_box
/**
* good_email
* Don't get me started... I'm sure the indenting is still wrong on this
* it shouldn't be named this, it should be documented, yea this needs
* some serious MOJO work
*/
function good_email($email) {
// First check that there's one @ symbol, and that the lengths are good
if (!ereg("^[^@]{1,64}@[^@]{1,255}$", $email)) {
// Email invalid because wrong number of characters in one section, or wrong number of @ symbols.
return false;
}
// Split it into sections
$email_array = explode("@", $email);
$local_array = explode(".", $email_array[0]);
for ($i = 0; $i < sizeof($local_array); $i++) {
if (!ereg("^(([A-Za-z0-9!#$%&'*+/=?^_`{|}~-][A-Za-z0-9!#$%&'*+/=?^_`{|}~\.-]{0,63})|(\"[^(\\|\")]{0,62}\"))$", $local_array[$i])) {
return false;
}
}
if (!ereg("^\[?[0-9\.]+\]?$", $email_array[1])) { // Check if domain is IP. If not, it should be valid domain name
$domain_array = explode(".", $email_array[1]);
if (sizeof($domain_array) < 2) {
return false; // Not enough parts to domain
}
for ($i = 0; $i < sizeof($domain_array); $i++) {
if (!ereg("^(([A-Za-z0-9][A-Za-z0-9-]{0,61}[A-Za-z0-9])|([A-Za-z0-9]+))$", $domain_array[$i])) {
return false;
}
}
}
return true;
} //good_email
/**
* show_album_select
* This displays a select of every album that we've got in Ampache, (it can be hella long) it's used
* by the Edit page, it takes a $name and a $album_id
*/
function show_album_select($name='album',$album_id=0,$allow_add=0,$song_id=0) {
// Generate key to use for HTML element ID
static $id_cnt;
if ($song_id) {
$key = "album_select_$song_id";
} else {
$key = "album_select_c" . ++$id_cnt;
}
// Added ID field so we can easily observe this element
echo "<select name=\"$name\" id=\"$key\">\n";
$sql = "SELECT `id`, `name`, `prefix` FROM `album` ORDER BY `name`";
$db_results = Dba::query($sql);
while ($r = Dba::fetch_assoc($db_results)) {
$selected = '';
$album_name = trim($r['prefix'] . " " . $r['name']);
if ($r['id'] == $album_id) {
$selected = "selected=\"selected\"";
}
echo "\t<option value=\"" . $r['id'] . "\" $selected>" . scrub_out($album_name) . "</option>\n";
} // end while
if ($allow_add) {
// Append additional option to the end with value=-1
echo "\t<option value=\"-1\">" . _('Add New') . "...</option>\n";
}
echo "</select>\n";
} // show_album_select
/**
* show_artist_select
* This is the same as the album select except it's *gasp* for artists how inventive!
*/
function show_artist_select($name='artist', $artist_id=0, $allow_add=0, $song_id=0) {
// Generate key to use for HTML element ID
static $id_cnt;
if ($song_id) {
$key = "artist_select_$song_id";
} else {
$key = "artist_select_c" . ++$id_cnt;
}
echo "<select name=\"$name\" id=\"$key\">\n";
$sql = "SELECT `id`, `name`, `prefix` FROM `artist` ORDER BY `name`";
$db_results = Dba::query($sql);
while ($r = Dba::fetch_assoc($db_results)) {
$selected = '';
$artist_name = trim($r['prefix'] . " " . $r['name']);
if ($r['id'] == $artist_id) {
$selected = "selected=\"selected\"";
}
echo "\t<option value=\"" . $r['id'] . "\" $selected>" . scrub_out($artist_name) . "</option>\n";
} // end while
if ($allow_add) {
// Append additional option to the end with value=-1
echo "\t<option value=\"-1\">Add New...</option>\n";
}
echo "</select>\n";
} // show_artist_select
/**
* show_genre_select
* It's amazing we have three of these funtions now, this one shows a select of genres and take s name
* and a selected genre... Woot!
*/
function show_genre_select($name='genre',$genre_id=1,$size='', $allow_add=0, $song_id=0) {
// Generate key to use for HTML element ID
static $id_cnt;
if ($song_id) {
$key = "genre_select_$song_id";
} else {
$key = "genre_select_c" . ++$id_cnt;
}
if ($size > 0) {
$multiple_txt = " multiple=\"multiple\" size=\"$size\"";
}
echo "<select name=\"$name\"$multiple_txt id=\"$key\">\n";
$sql = "SELECT `id`, `name` FROM `genre` ORDER BY `name`";
$db_results = Dba::query($sql);
while ($r = Dba::fetch_assoc($db_results)) {
$selected = '';
$genre_name = $r['name'];
if ($r['id'] == $genre_id) {
$selected = "selected=\"selected\"";
}
echo "\t<option value=\"" . $r['id'] . "\" $selected>" . scrub_out($genre_name) . "</option>\n";
} // end while
if ($allow_add) {
// Append additional option to the end with value=-1
echo "\t<option value=\"-1\">Add New...</option>\n";
}
echo "</select>\n";
} // show_genre_select
/**
* show_catalog_select
* Yet another one of these buggers. this shows a drop down of all of your catalogs
*/
function show_catalog_select($name='catalog',$catalog_id=0,$style='') {
echo "<select name=\"$name\" style=\"$style\">\n";
$sql = "SELECT `id`, `name` FROM `catalog` ORDER BY `name`";
$db_results = Dba::query($sql);
while ($r = Dba::fetch_assoc($db_results)) {
$selected = '';
if ($r['id'] == $catalog_id) {
$selected = "selected=\"selected\"";
}
echo "\t<option value=\"" . $r['id'] . "\" $selected>" . scrub_out($r['name']) . "</option>\n";
} // end while
echo "</select>\n";
} // show_catalog_select
/**
* show_user_select
* This one is for users! shows a select/option statement so you can pick a user
* to blame
*/
function show_user_select($name,$selected='',$style='') {
echo "<select name=\"$name\" style=\"$style\">\n";
echo "\t<option value=\"\">" . _('All') . "</option>\n";
$sql = "SELECT `id`,`username`,`fullname` FROM `user` ORDER BY `fullname`";
$db_results = Dba::query($sql);
while ($row = Dba::fetch_assoc($db_results)) {
$select_txt = '';
if ($row['id'] == $selected) {
$select_txt = 'selected="selected"';
}
// If they don't have a full name, revert to the username
$row['fullname'] = $row['fullname'] ? $row['fullname'] : $row['username'];
echo "\t<option value=\"" . $row['id'] . "\" $select_txt>" . scrub_out($row['fullname']) . "</option>\n";
} // end while users
echo "</select>\n";
} // show_user_select
/**
* show_playlist_select
* This one is for users! shows a select/option statement so you can pick a user
* to blame
*/
function show_playlist_select($name,$selected='',$style='') {
echo "<select name=\"$name\" style=\"$style\">\n";
echo "\t<option value=\"\">" . _('None') . "</option>\n";
$sql = "SELECT `id`,`name` FROM `playlist` ORDER BY `name`";
$db_results = Dba::query($sql);
while ($row = Dba::fetch_assoc($db_results)) {
$select_txt = '';
if ($row['id'] == $selected) {
$select_txt = 'selected="selected"';
}
// If they don't have a full name, revert to the username
echo "\t<option value=\"" . $row['id'] . "\" $select_txt>" . scrub_out($row['name']) . "</option>\n";
} // end while users
echo "</select>\n";
} // show_playlist_select
/**
* show_box_top
* This function requires the top part of the box
* it takes title as an optional argument
*/
function show_box_top($title='',$class='') {
require Config::get('prefix') . '/templates/show_box_top.inc.php';
} // show_box_top
/**
* show_box_bottom
* This function requires the bottom part of the box
* it does not take any arguments
*/
function show_box_bottom() {
require Config::get('prefix') . '/templates/show_box_bottom.inc.php';
} // show_box_bottom
/**
* get_user_icon
* this function takes a name and a returns either a text representation
* or an <img /> tag
*/
function get_user_icon($name,$title='',$id='') {
/* Because we do a lot of calls cache the URLs */
static $url_cache = array();
// If our name is an array
if (is_array($name)) {
$hover_name = $name['1'];
$name = $name['0'];
}
if (!$title) { $title = $name; }
if ($id) {
$id_element = 'id="' . $id . '"';
}
if (isset($url_cache[$name])) {
$img_url = $url_cache[$name];
$cache_url = true;
}
if (isset($url_cache[$hover_name])) {
$hover_url = $url_cache[$hover_name];
$cache_hover = true;
}
if (empty($hover_name)) { $cache_hover = true; }
if (!isset($cache_url) OR !isset($cache_hover)) {
$icon_name = 'icon_' . $name . '.png';
/* Build the image url */
if (file_exists(Config::get('prefix') . Config::get('theme_path') . '/images/icons/' . $icon_name)) {
$img_url = Config::get('web_path') . Config::get('theme_path') . '/images/icons/' . $icon_name;
}
else {
$img_url = Config::get('web_path') . '/images/' . $icon_name;
}
/* If Hover, then build its url */
if (!empty($hover_name)) {
$hover_icon = 'icon_' . $hover_name . '.png';
if (file_exists(Config::get('prefix') . Config::get('theme_path') . '/images/icons/' . $icon_name)) {
$hov_url = Config::get('web_path') . Config::get('theme_path') . '/images/icons/' . $hover_icon;
}
else {
$hov_url = Config::get('web_path') . '/images/' . $hover_icon;
}
$hov_txt = "onmouseover=\"this.src='$hov_url'; return true;\" onmouseout=\"this.src='$img_url'; return true;\"";
} // end hover
} // end if not cached
$string = "<img src=\"$img_url\" $id_element alt=\"" . ucfirst($title) . "\" title=\"" . ucfirst($title) . "\" $hov_txt/>";
return $string;
} // get_user_icon
/**
* xml_from_array
* This takes a one dimensional array and
* creates a XML document form it for use
* primarly by the ajax mojo
*/
function xml_from_array($array,$callback=0,$type='') {
// If we weren't passed an array then return a blank string
if (!is_array($array)) { return ''; }
// The type is used for the different XML docs we pass
switch ($type) {
case 'itunes':
foreach ($array as $key=>$value) {
if (is_array($value)) {
$value = xml_from_array($value,1,$type);
$string .= "\t\t<$key>\n$value\t\t</$key>\n";
}
else {
if ($key == "key"){
$string .= "\t\t<$key>$value</$key>\n";
} elseif (is_int($value)) {
$string .= "\t\t\t<key>$key</key><integer>$value</integer>\n";
} elseif ($key == "Date Added") {
$string .= "\t\t\t<key>$key</key><date>$value</date>\n";
} elseif (is_string($value)) {
/* We need to escape the value */
$string .= "\t\t\t<key>$key</key><string><![CDATA[$value]]></string>\n";
}
}
} // end foreach
return $string;
break;
case 'xspf':
foreach ($array as $key=>$value) {
if (is_array($value)) {
$value = xml_from_array($value,1,$type);
$string .= "\t\t<$key>\n$value\t\t</$key>\n";
}
else {
if ($key == "key"){
$string .= "\t\t<$key>$value</$key>\n";
} elseif (is_numeric($value)) {
$string .= "\t\t\t<$key>$value</$key>\n";
} elseif (is_string($value)) {
/* We need to escape the value */
$string .= "\t\t\t<$key><![CDATA[$value]]></$key>\n";
}
}
} // end foreach
return $string;
break;
default:
foreach ($array as $key=>$value) {
if (is_numeric($key)) { $key = 'item'; }
if (is_array($value)) {
$value = xml_from_array($value,1);
$string .= "\t<content div=\"$key\">$value</content>\n";
}
else {
/* We need to escape the value */
$string .= "\t<content div=\"$key\"><![CDATA[$value]]></content>\n";
}
// end foreach elements
}
if (!$callback) {
$string = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<root>\n" . $string . "</root>\n";
}
return $string;
break;
}
} // xml_from_array
/**
* xml_get_header
* This takes the type and returns the correct xml header
*/
function xml_get_header($type){
switch ($type){
case 'itunes':
$header = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n" .
"<!DOCTYPE plist PUBLIC \"-//Apple Computer//DTD PLIST 1.0//EN\"\n" .
"\"http://www.apple.com/DTDs/PropertyList-1.0.dtd\">\n" .
"<plist version=\"1.0\">\n" .
"<dict>\n" .
" <key>Major Version</key><integer>1</integer>\n" .
" <key>Minor Version</key><integer>1</integer>\n" .
" <key>Application Version</key><string>7.0.2</string>\n" .
" <key>Features</key><integer>1</integer>\n" .
" <key>Show Content Ratings</key><true/>\n" .
" <key>Tracks</key>\n" .
" <dict>\n";
return $header;
break;
case 'xspf':
$header = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n" .
"<playlist version = \"1\" xmlns=\"http://xspf.org/ns/0/\">\n ".
"<title>Ampache XSPF Playlist</title>\n" .
"<creator>" . Config::get('site_title') . "</creator>\n" .
"<annotation>" . Config::get('site_title') . "</annotation>\n" .
"<info>". Config::get('web_path') ."</info>\n" .
"<trackList>\n\n\n\n";
return $header;
break;
default:
$header = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
return $header;
break;
}
} //xml_get_header
/**
* xml_get_footer
* This takes the type and returns the correct xml footer
*/
function xml_get_footer($type){
switch ($type){
case 'itunes':
$footer = " </dict>\n" .
"</dict>\n" .
"</plist>\n";
return $footer;
break;
case 'xspf':
$footer = " </trackList>\n" .
"</playlist>\n";
return $footer;
break;
default:
break;
}
} // xml_get_footer
/**
* ajax_include
* This does an ob_start, getcontents, clean
* on the specified require, only works if you
* don't need to pass data in
*/
function ajax_include($include) {
ob_start();
require_once Config::get('prefix') . '/templates/' . $include;
$results = ob_get_contents();
ob_end_clean();
return $results;
} // ajax_include
/**
* toggle_visible
* this is identicla to the javascript command that it actually calls
*/
function toggle_visible($element) {
echo "<script type=\"text/javascript\">\n";
echo "toggle_visible('$element');";
echo "\n</script>\n";
} // toggle_visible
?>
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