aide installer un script

[rc60]

je souhaite installer un bouton retour dansexpse 4

je possede le script qui doit etre placer apres la derniere table

script :
<div class="back_button"><a href='javascript:history.go(-1)'>[&nbsp;Retour&nbsp;]</a>/div>

oooooooooooooooooooooooooooooooooooooooooooooooooooo
oooooooooooooooooooooooooooooooooooooooooooooooooooo


<?php
//****************************************************************************
//Component: Expose
//Version : RC3
//Author : Josh
//E-Mail : webmaster@gotgtek.com
//Author : Steinthor Kristinsson
//E-Mail : steinthor@setjan.com
//File : expose.html.php
//Web Site : www.gotgtek.com
//Copyright: Copyright 2006 by GTEK Technologies
//License : GNU General Public License (GPL), visit www.slooz.com for details
//
//Joomla 1.x flash gallery compoent.
//*********************************************************************************
defined( '_VALID_MOS' ) or die( 'Direct Access to this location is not allowed.' );

if (version_compare(PHP_VERSION,'5','>='))
include_once($mosConfig_absolute_path."/components/com_expose/expose/manager/misc/domxml-php4-to-php5.php");

include($mosConfig_absolute_path."/components/com_expose/expose/manager/misc/common.inc.php");
include($mosConfig_absolute_path."/components/com_expose/expose/admin/config.expose.php");

class expose_html {

// Get Main gallery variables
function getbg() {
$xmlF = expose_M::rpath2();
$bgc = expose_M::GetAttr($xmlF,"Gallery Background");
return $bgc;
}

function getbgi() {
$xmlF = expose_M::rpath2();
$bgi = expose_M::GetAttr($xmlF,"Gallery Background Image");
return $bgi;
}

function geth() {
$xmlF = expose_M::rpath2();
$bgh = expose_M::GetAttr($xmlF,"Gallery height");
return $bgh;
}

function getw() {
$xmlF = expose_M::rpath2();
$bgw = expose_M::GetAttr($xmlF,"Gallery width");
return $bgw;
}

function getlang() {
$xmlF = expose_M::rpath2();
$bgl = expose_M::GetAttr($xmlF,"Language");
return $bgl;
}

function writeGameFlash($msg){
global $mainframe;
global $mosConfig_live_site;

$mainframe->addCustomHeadTag ('<script type="text/javascript" src="' . $mosConfig_live_site . '/components/com_expose/AC_RunActiveContent.js"></script>');

?>

<table align="center" border="0">
<tr>
<td>
<script type = "text/javascript">
// <!--
function showpic (args) {
var argsarray = args.split ("_SPLIT_");
var imgurl = argsarray[0];
var caption = argsarray[1];
var date = argsarray[2];
var location = argsarray[3];
window.open ("<?php echo $mosConfig_live_site; ?>/components/com_expose/showpic.html?" +
"img=expose/" + imgurl +
"&amp;caption=" + escape (caption) +
"&amp;date=" + escape (date) +
"&amp;location=" + escape (location)
, 'pic',
"width=" + screen.width +
",height=" + screen.height +
",toolbar=no,resizable=yes,scrollbars=yes,location=no,top=0,left=0,fullscreen=1,status=no");
}

function openurl (args) {
var url = args;
window.open (url);
}

var InternetExplorer = navigator.appName.indexOf("Microsoft") != -1;

function expose_DoFSCommand(command, args) {
var exposeObj = InternetExplorer ? expose : document.expose;
if (command == "showpic") {
showpic (args);
}
if (command == "openurl") {
openurl (args);
}
}

if (navigator.appName && navigator.appName.indexOf("Microsoft") != -1 &&
navigator.userAgent.indexOf("Windows") != -1 && navigator.userAgent.indexOf("Windows 3.1") == -1) {
document.write('<SCRIPT LANGUAGE=VBScript>
');
document.write('on error resume next
');
document.write('Sub expose_FSCommand(ByVal command, ByVal args)
');
document.write(' call expose_DoFSCommand(command, args)
');
document.write('end sub
');
document.write('</SCRIPT>
');
}

// SEO fix thanks to Hambon
function getQueryVariable(variable) {
var query = window.location.search.substring(1);
var pairDelimiter = "&";
var pairSeparator = "=";
var joomlaComName = "option,com_expose";

if (query == "") {
query = window.location.pathname.substring(1);
var joomlaIsSEO = query.indexOf(joomlaComName);
if (joomlaIsSEO != -1) {
pairDelimiter = "/";
pairSeparator = ",";
}
}

var vars = query.split(pairDelimiter);
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split(pairSeparator);
if (pair[0] == variable) {
return pair[1];
}
}
return '';
}

var topLevelCollectionID = getQueryVariable ('topcoll');
var autoLoadAlbumID = getQueryVariable ('album');
var autoLoadPhotoID = getQueryVariable ('photo');
var autoStartSlideShow = getQueryVariable ('playslideshow');

AC_FL_RunContent(
'codebase', 'http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=8,0,0,0',
'width', '<?php echo expose_html::getw(); ?>',
'height', '<?php echo expose_html::geth(); ?>',
'src', 'components/com_expose/expose/swf/expose',
'quality', 'high',
'wmode','transparent',
'pluginspage', 'http://www.macromedia.com/go/getflashplayer',
'align', 'middle',
'play', 'true',
'id', 'expose',
'bgcolor', '#<?php echo expose_html::getbg(); ?>',
'name', 'expose',
'menu', 'false',
'allowScriptAccess','sameDomain',
'movie', 'components/com_expose/expose/swf/expose',
'salign', '',
'FlashVars', 'bgColor=<?php echo expose_html::getbg(); ?>&amp;albumsXMLURL=xml/albums.xml&amp;stringsXMLURL=config/strings.xml&amp;formatsXMLURL=config/formats.xml&amp;configXMLURL=config/config.xml&amp;baseXMLURL=xml/&amp;baseImageURL=img/&amp;baseVideoURL=expose/img/&amp;baseAudioURL=img/&amp;topLevelCollectionID=' + topLevelCollectionID + '&amp;autoLoadAlbumID=' + autoLoadAlbumID + '&amp;autoLoadPhotoID=' + autoLoadPhotoID + '&amp;autoStartSlideShow=' + autoStartSlideShow + '&amp;bgImageURL=<?php echo expose_html::getbgi(); ?>&amp;fgImageURL=&amp;language=<?php echo expose_html::getlang(); ?>&amp;useEmbeddedFonts=yes',
'base', 'components/com_expose/expose'
);
// -->
</script>

</td>
</tr>
</table>
<center>Expose 4FR by <a href="http://www.zonepaintball.com">Paintball</a></center>
<?php
}
}
?>