Problème avec le code php

Bonjour,

Ma page web affiche un message d'erreur à la ligne 174.

Voici le code:

<?php
/**
* @package JFSS | joomfreak slideshow
* @link http://www.joomfreak.com
* @version 1.0
* @copyright Copyright (C) 2013 www.joomfreak.com
* @license GNU/GPL http://www.gnu.org/copyleft/gpl.html
*/
// no direct access
defined('_JEXEC') or die('Restricted access');

$siteUrl = JURI::root();
$assetsPath = 'modules/mod_jfslideshow/assets/';

$document = JFactory::getDocument();

$document->addScript($siteUrl.$assetsPath.'js/jquery.min.js');
$document->addScriptDeclaration('jQuery.noConflict();');

$document->addScript($siteUrl.$assetsPath.'js/jquery.easing.min.js');
$document->addScript($siteUrl.$assetsPath.'js/supersized.3.2.7.min.js');
$document->addScript($siteUrl.$assetsPath.'theme/supersized.shutter.min.js');

$document->addStyleSheet($siteUrl.$assetsPath.'css/supersized.css');
$document->addStyleSheet($siteUrl.$assetsPath.'css/slideshow.css');
$document->addStyleSheet($siteUrl.$assetsPath.'theme/supersized.shutter.css');

$name = 'slideoption';

$slide_interval = $params->get($name .'_slide_interval', '3000');
$transition = $params->get($name .'_transition', '1');
$transition_speed = $params->get($name .'_transition_speed', '1000');
$performance = $params->get($name .'_performance', '3');
$navigation = $params->get($name .'_navigation', '1');
$slidecaption = $params->get($name .'_slidecaption', '1');
$arrow = $params->get($name .'_arrow', '1');
$textresponsive = $params->get($name .'_textresponsive', '0');
if($textresponsive){
$document->addStyleSheet($siteUrl.$assetsPath.'css/responsivetext.css');
}

for ($i = 1; $i <= $maxSlide; $i++){
// slogan
$image = '';
$slogan = '';
$font = '';
$size = '';
$color = '';
$sloganshadow = '';
$link = '';
$linkurl = '';
$des = '';
$desfont = '';
$descolor = '';
$desbgcolor = '';
$deswidth = '';
$desradius = '';
$desshadow = '';
$linkbg = '';
$linkbgcolor = '';
$linkcolorhover = '';
$linkcolornormal = '';

$image = $params->get($name .'_image'.$i, '');
$slogan = $params->get($name .'_slogan'.$i, '');
if($slogan){
$font = jfLoadfont( $params->get($name .'_font'.$i, 'none') );
}
$size = $params->get($name .'_size'.$i, '18');
$color = $params->get($name .'_color'.$i, '18');
$sloganshadow = $params->get($name .'_sloganshadow'.$i, '1');
$link = $params->get($name .'_link'.$i, '0');
$linkurl = $params->get($name .'_linkurl'.$i, '');

// description
$des = $params->get($name .'_des'.$i, '');
if($des){
$desfont = jfLoadfont( $params->get($name .'_desfont'.$i, 'none') );
}
$descsize = $params->get($name .'_descsize'.$i, '12');
$descolor = $params->get($name .'_descolor'.$i, '');
$desbgcolor = $params->get($name .'_desbgcolor'.$i, '');
$deswidth = $params->get($name .'_deswidth'.$i, '300');
$desradius = $params->get($name .'_desradius'.$i, '0');
$desshadow = $params->get($name .'_desshadow'.$i, '0');


// link in description
$linkbg = $params->get($name .'_linkbg'.$i, '0');
$linkbgcolor = $params->get($name .'_linkbgcolor'.$i, '');
$linkcolorhover = $params->get($name .'_linkcolorhover'.$i, '');
$linkcolornormal = $params->get($name .'_linkcolornormal'.$i, '');

if($image == '' && $slogan == '' && $des == '') continue;

if($image == '') $image = $siteUrl . $assetsPath . 'img/blank.jpg';

if($slogan != ''){

$sloganshadow = $sloganshadow ? 'text-shadow' : '';
if($color != '') $color = "color:$color;";
if($link && $linkurl != ''){
$link = true;
}

$title = "<h2 style='font-size:".$size."px; line-height:".$size."px; $color' class='$font $sloganshadow slideSloganText'>";
if($link) $title .= "<a href='$linkurl' style='$color'>";
$title .= $slogan;
if($link) $title .= "</a>";
$title .= "</h2>";
}else{
$title = ' ';
}

if($des != ''){

/*
$des = $params->get($name .'_des'.$i, '');
$desfont = jfLoadfont( $params->get($name .'_desfont'.$i, 'none') );
$descolor = $params->get($name .'_descolor'.$i, '');
$desbgcolor = $params->get($name .'_desbgcolor'.$i, '');
$deswidth = $params->get($name .'_deswidth'.$i, '300');
$desradius = $params->get($name .'_desradius'.$i, '0');
$desshadow = $params->get($name .'_desshadow'.$i, '0');


// link in description
$linkbg = $params->get($name .'_linkbg'.$i, '0');
$linkbgcolor = $params->get($name .'_linkbgcolor'.$i, '');
//$linkcolorhover = $params->get($name .'_linkcolorhover'.$i, '');
$linkcolornormal = $params->get($name .'_linkcolornormal'.$i, '');
*/

if($descolor != '') $descolor = "color:$descolor;";
if($desbgcolor != '') {
$desbgcolor = "background-color:$desbgcolor;";
$desshadow = $desshadow ? 'box-shadow' : '';
}else{
$desshadow = '';
}
if($deswidth == '') {
$deswidth = 300;
}
$deswidth = "width:".$deswidth."px;";

if($desradius != '') $desradius = "-moz-border-radius: ".$desradius."px; border-radius: ".$desradius."px;";

$randomCssClass = rand_string(9);
$styleHtml = "";
$styleHtml .= ".$randomCssClass a:link, .$randomCssClass a:visited{";
if($linkbg) $styleHtml .= "background-color:$linkbgcolor;";
if($linkcolornormal) $styleHtml .= "color:$linkcolornormal !important";
$styleHtml .= "}";
$styleHtml .= ".$randomCssClass a:hover{";
if($linkcolorhover) $styleHtml .= "color:$linkcolorhover !important";
$styleHtml .= "}";

$styleHtml .= ".$randomCssClass{ $descolor $desbgcolor $deswidth $desradius font-size:{$descsize}px; line-height:".($descsize+3)."px}";

$document->addStyleDeclaration($styleHtml);
$description = '';
$description = "<div class='slidedescription $desfont $desshadow $randomCssClass'>";
$description .= $des;
$description .= "</div>";
}else{
$description = ' ';
}


$image = JText::_($image, true);
$title = JText::_($title, true);
$description = JText::_($description, true);

$slideHtml .= ", {image: '$image', title: '$title $description'}";
$count = $i;
}
$slideHtml = substr( $slideHtml, 1 ); // remove "," at the first of string
ob_start();
?>

jQuery(function($){
<?php
if($navigation && $count > 1){
?>
$('body').append('<a id="prevslide" class="load-item prevsldide<?php echo $arrow;?>"></a><a id="nextslide" class="load-item nextslide<?php echo $arrow;?>"></a>');
<?php }?>
<?php
if($slidecaption){
?>
$('body').append('<div id="slidecaption"></div>');
<?php }?>

$.supersized({

// Functionality
slideshow : 1, // Slideshow on/off
autoplay : 1, // Slideshow starts playing automatically
start_slide : 1, // Start slide (0 is random)
stop_loop : 0, // Pauses slideshow on last slide
random : 0, // Randomize slide order (Ignores start slide)
slide_interval : <?php echo $slide_interval;?>, // Length between transitions
transition : <?php echo $transition;?>, // 0-None, 1-Fade, 2-Slide Top, 3-Slide Right, 4-Slide Bottom, 5-Slide Left, 6-Carousel Right, 7-Carousel Left
transition_speed : <?php echo $transition_speed;?>, // Speed of transition
new_window : 1, // Image links open in new window/tab
pause_hover : 0, // Pause slideshow on hover
keyboard_nav : 0, // Keyboard navigation on/off
performance : <?php echo $performance;?>, // 0-Normal, 1-Hybrid speed/quality, 2-Optimizes image quality, 3-Optimizes transition speed // (Only works for Firefox/IE, not Webkit)
image_protect : 1, // Disables image dragging and right click with Javascript

// Size & Position
min_width : 0, // Min width allowed (in pixels)
min_height : 0, // Min height allowed (in pixels)
vertical_center : 1, // Vertically center background
horizontal_center : 1, // Horizontally center background
fit_always : 0, // Image will never exceed browser width or height (Ignores min. dimensions)
fit_portrait : 0, // Portrait images will not exceed browser height
fit_landscape : 0, // Landscape images will not exceed browser width

// Components
slide_links : 'blank', // Individual links for each slide (Options: false, 'num', 'name', 'blank')
thumb_links : 0, // Individual thumb links for each slide
thumbnail_navigation : 0, // Thumbnail navigation
slides : [ // Slideshow Images
<?php echo $slideHtml;?>
],

// Theme Options
progress_bar : 0, // Timer for each slide
mouse_scrub : 1

});
});
<?php

$jfcontent = ob_get_contents();
ob_end_clean();
$document->addScriptDeclaration($jfcontent);

merci de m'aider.