how Do i change tag H1 from site name

Hello,

Sorry my english is very very bad.

I try to change the tag “name of the site” by changing the simplecatch_headerdetails function.
So that when I am in the home the tag is <h1>, otherwise it is replaced by the <p> tag.
I can not do it.

this is the my simplecatch_headerdetails

function simplecatch_headerdetails() {
	//delete_transient( 'simplecatch_headerdetails' );	

	global $simplecatch_options_settings;
    $options = $simplecatch_options_settings;	

	if ( ( !$simplecatch_headerdetails = get_transient( 'simplecatch_headerdetails' ) ) && ( empty( $options[ 'remove_header_logo' ] ) || empty( $options[ 'remove_site_title' ] ) || empty( $options[ 'remove_site_description' ] ) ) ) {

		echo '<!-- refreshing cache -->';

		$simplecatch_headerdetails = '<div class="logo-wrap">';

		if(is_home()):

			$openTagTitle = '<h1 id="site-title">';
			$closeTagTitle = '</h1>';
			$openTagDes = '<h2 id="site-description">';
			$closeTagDes= '</h2>';
		else :
			$openTagTitle = '<p id="site-title">';
			$closeTagTitle = '</p>';
			$openTagDes = '<p id="site-description">';
			$closeTagDes= '</p>';
		endif;	

		if( empty( $options[ 'remove_header_logo' ] ) || empty( $options[ 'remove_site_title' ] ) ) {

 			$simplecatch_headerdetails .= $openTagTitle.'<a href="'.esc_url( home_url( '/' ) ).'" title="'.esc_attr( get_bloginfo( 'name', 'display' ) ).'">';

			if( empty( $options[ 'remove_header_logo' ] ) ) {
				if ( !empty( $options[ 'featured_logo_header' ] ) ):
					$simplecatch_headerdetails .= '<img src="'.esc_url( $options['featured_logo_header'] ).'" alt="'.get_bloginfo( 'name' ).'" />';
				else:
					// if empty featured_logo_header on theme options, display default logo
					$simplecatch_headerdetails .='<img src="'. get_template_directory_uri().'/images/logo.png" alt="logo" />';
				endif;
			}

			if ( empty( $options[ 'remove_site_title' ] ) ) {
				$simplecatch_headerdetails .= '<span>'.esc_attr( get_bloginfo( 'name', 'display' ) ).'</span>';
			}

			$simplecatch_headerdetails .= '</a>'.$closeTagTitle;

		}

		if( empty( $options[ 'remove_site_description' ] ) ) {
			$simplecatch_headerdetails .= $openTagDes.''.esc_attr( get_bloginfo( 'description' ) ).''.$closeTagDes;
		}	

		$simplecatch_headerdetails .= '</div><!-- .logo-wrap -->';

	set_transient( 'simplecatch_headerdetails', $simplecatch_headerdetails, 86940 );
	}
	echo $simplecatch_headerdetails;
} // simplecatch_headerdetails