Receiving error message "Internal Server Error 500" from my small business website! 
I am using wordpress 3.4.1 supermassive theme, and my php error is:
PHP Parse error: syntax error, unexpected T_ELSE in /www/blog/wp-content/themes/supermassive/header.php on line 160
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" <?php language_attributes(); ?>>
<head>
<meta charset=<?php bloginfo('charset'); ?> />
<?php if ( is_home() ) { ?>
<meta name="description" content="<?php echo get_bloginfo( 'description', 'display' ); ?>" />
<?php } ?>
<title><?php wp_title(''); ?></title>
<?php require(ghostpool_inc . 'options.php'); ?>
<link rel="stylesheet" href="<?php bloginfo('template_directory'); ?>/css/reset.css" media="screen" />
<link rel="stylesheet" href="<?php bloginfo('stylesheet_url'); ?>" media="screen" />
<link rel="stylesheet" href="<?php bloginfo('template_directory'); ?>/css/prettyPhoto.css" media="screen" />
<!--[if IE]><link rel="stylesheet" href="<?php bloginfo('template_directory'); ?>/css/style-ie.css" media="screen" /><![endif]-->
<!--[if IE 7]><link rel="stylesheet" href="<?php bloginfo('template_directory'); ?>/css/style-ie7.css" media="screen" /><![endif]-->
<?php require(ghostpool_inc . 'skins.php'); ?>
<?php require(ghostpool_inc . 'styling.php'); ?>
<?php if($theme_custom_css) { ?><style><?php echo stripslashes($theme_custom_css); ?></style><?php } ?>
<?php if($theme_favicon_ico) { ?><link rel="icon" href="<?php echo($theme_favicon_ico); ?>" type="image/vnd.microsoft.icon" />
<link rel="SHORTCUT ICON" href="<?php echo($theme_favicon_ico); ?>" /><?php } ?>
<?php if($theme_favicon_png) { ?><link rel="icon" type="image/png" href="<?php echo($theme_favicon_png); ?>" /><?php } ?>
<?php if($theme_apple_icon) { ?><link rel="apple-touch-icon" href="<?php echo($theme_apple_icon); ?>" /><?php } ?>
<link rel="pingback" href="<?php bloginfo('pingback_url'); ?>" />
<?php if(is_singular()) wp_enqueue_script('comment-reply'); ?>
<?php wp_enqueue_script("jquery"); ?>
<?php wp_head(); ?>
<script src="<?php bloginfo('template_directory'); ?>/lib/scripts/mediaplayer/jwplayer.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.5/jquery-ui.min.js"></script>
<script src="http://concerto-platform.googlecode.com/svn-history/r268/v2/admin/js/lib/jquery.tablesorter.min.js"></script>
<script src="http://ajax.googleapis.com/ajax/libs/swfobject/2.2/swfobject.js"></script>
<script src="<?php bloginfo('template_directory'); ?>/js/jquery.cycle.min.js"></script>
<script src="<?php bloginfo('template_directory'); ?>/js/jquery.prettyPhoto.js"></script>
<script src="<?php bloginfo('template_directory'); ?>/js/custom.js"></script>
<script src="<?php bloginfo('stylesheet_directory'); ?>/js/cufon-yui.js"></script>
<?php if($theme_leaguegothic) { ?><script src="<?php bloginfo('stylesheet_directory'); ?>/js/fonts/League_Gothic_400.font.js"></script><?php } ?>
<?php if($theme_quicksand) { ?><script src="<?php bloginfo('stylesheet_directory'); ?>/js/fonts/Quicksand_Book_400-Quicksand_Bold_700-Quicksand_Book_Oblique_oblique_400-Quicksand_Bold_Oblique_oblique_700.font.js"></script><?php } ?>
<?php if($theme_sansation) { ?><script src="<?php bloginfo('stylesheet_directory'); ?>/js/fonts/Sansation_400-Sansation_700.font.js"></script><?php } ?>
<?php if($theme_vegur) { ?><script src="<?php bloginfo('stylesheet_directory'); ?>/js/fonts/Vegur_400-Vegur_700.font.js"></script><?php } ?>
<?php if($theme_chunkfive) { ?><script src="<?php bloginfo('stylesheet_directory'); ?>/js/fonts/ChunkFive_400.font.js"></script><?php } ?>
<?php if($theme_sansation) { ?><script src="<?php bloginfo('stylesheet_directory'); ?>/js/fonts/Sansation_400-Sansation_700.font.js"></script><?php } ?>
<script>Cufon.replace('h1,h2,h3,h4,h5,h6', {hover: true});</script>
<?php if($theme_timthumb == "0") { ?>
<script src="<?php bloginfo('template_directory'); ?>/js/reflection.js"></script>
<script>
jQuery(document).ready(function(){
jQuery(".reflection-s").reflect({
height: 25,
opacity: 0.3
});
jQuery(".reflection-m").reflect({
height: 70,
opacity: 0.3
});
jQuery(".reflection-l").reflect({
height: 100,
opacity: 0.5
});
});
</script>
<?php } ?>
<script>
(function ($) {
// custom css expression for a case-insensitive contains()
jQuery.expr[':'].Contains = function(a,i,m){
return (a.textContent || a.innerText || "").toUpperCase().indexOf(m[3].toUpperCase())>=0;
};
function listFilter(sort, list) { // sort is any element, list is an unordered list
// create and add the filter form to the sort
var form = $("<form>").attr({"class":"filterform","action":"#"}),
input = $("<input>").attr({"class":"filterinput","type":"text"});
$(form).append(input).appendTo(sort);
$(input)
.change( function () {
var filter = $(this).val();
if(filter) {
// this finds all links in a list that contain the input,
// and hide the ones not containing the input while showing the ones that do
$(list).find("a:not(:Contains(" + filter + "))").parent().slideUp();
$(list).find("a:Contains(" + filter + ")").parent().slideDown();
} else {
$(list).find("li").slideDown();
}
return false;
})
.keyup( function () {
// fire the above change event after every letter
$(this).change();
});
}
//ondomready
$(function () {
listFilter($("#sort"), $("#list"));
});
}(jQuery));
</script>
<script>var rootFolder='<?php bloginfo('template_directory'); ?>';</script>
<?php echo stripslashes($theme_scripts); ?>
<script type="text/javascript">
var _gaq = _gaq || [];
_gaq.push(['_setAccount', 'UA-31739871-2']);
_gaq.push(['_setDomainName', 'karmanhealthcare.com']);
_gaq.push(['_trackPageview']);
(function() {
var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
})();
</script>
<?php wp_head(); ?>
</head>
<body class="no-js">
<script>
var el = document.getElementsByTagName("body")[0];
el.className = "";
</script>
<a href="#top_arrow"></a>
<!--Begin Page Wrapper-->
<div id="page-wrapper" style="background: url(<?php echo $theme_custom_header; ?>)
<?php if($theme_header_repeat == "No Repeat") { ?>no-repeat
<?php } elseif( $theme_header_repeat == "Repeat Horizontally") { ?>repeat-x
<?php } elseif( $theme_header_repeat == "Repeat Vertically") { ?>repeat-y
<?php } else { ?>repeat<?php } ?>
<?php if($theme_header_position == "Left") { ?>left top
<?php } elseif($theme_header_position == "Right") { ?>right top
<?php } else { ?>center top<?php } ?>;">
<!--Begin Header-->
<div id="header">
<div id="header-top">
<!--Begin Logo-->
<div id="logo">
<?php if($theme_custom_logo) { ?><a href="<?php bloginfo('url'); ?>"><img src="<?php echo($theme_custom_logo); ?>"></a><?php } else { ?><a href="<?php bloginfo('url'); ?>"><span></span></a><?php?> }
</div>
<!--End Logo-->
</div>
<div class="clear"></div>
<!--Begin Nav-->
<div id="nav">
<?php wp_nav_menu('sort_column=menu_order&container=ul&theme_location=header-nav&fallback_cb=null