Show H1 Tags for Logo/Blogtitle Only on Homepage/Front Page

Hi,

My website’s front page currently does not have an H1 tag, but in order to optimize it for SEO, it needs to have one. How do I add an H1 tag for the blog logo on just the front page and not on the other pages and articles? Currently, the PHP is as follows:

<div class="header-middle clear">
                    <div class="logo-header <?php if ( !get_option('unspoken_logo_top') && !get_option('unspoken_logo_text') ) echo 'offset' ?>">
                        <a href="<?php bloginfo( 'url' ); ?>">
                        <?php
                            if ( get_option('unspoken_logo_text') ) {
                                echo get_option('unspoken_logo_text');
                            } elseif ( get_option('unspoken_logo_top') ) {
                                if ( function_exists('unspoken_get_logo') ) echo unspoken_get_logo(get_option('unspoken_logo_top'));
                            } else {
                            ?>
                                <?php
                                if (get_option('unspoken_skin') && get_option('unspoken_skin') != 'default') {
                                    echo '<span style="background: url(' . get_bloginfo('template_url') . '/skins/unspoken-' . get_option('unspoken_skin') . '/images/logo-header.png) 0 0 no-repeat;"></span>';
                                } else {
                                    echo '<span style="background: url(' . get_bloginfo('template_url') . '/images/logo-header.png) 0 0 no-repeat;"></span>';
                                }
                                ?>
                            <?php } ?>
                        </a>
                    </div>