Next Gen Gallery Slideshow in Header

Hello, my site is http://www.inspiredautosport.com and I want to display the NGG Gallery Slideshow on my Front Page Header only. I inserted the code below in my Header.php file but the slideshow is displaying on all pages, instead I only want it on the Home page, can anyone help in how I can do this?:

<div class=”sg-header-area”>

<div class=”header-wrap”>

<?php
do_action( ‘sgwindow_header_image’ );

get_sidebar( ‘top’ );
?>
<div class=”frontpage_slideshow”>
<?php
$showgallery = ‘[slideshow=1]’;
$showgallery = apply_filters(‘the_content’, $showgallery );
echo $showgallery;
?>
</div>
</div><!– .header-wrap –>
</div><!– .sg-header-area –>

<div class=”main-area”>

https://wordpress.org/plugins/nextgen-gallery/