function avia_logo( $use_image = '', $sub = '', $headline_type = 'h1', $dimension = '' )
{
    $headline_type  = apply_filters( 'avf_logo_headline', $headline_type );
    $sub            = apply_filters( 'avf_logo_subtext',  $sub );
    $alt            = apply_filters( 'avf_logo_alt', get_bloginfo( 'name' ) );
    $link           = apply_filters( 'avf_logo_link', home_url( '/' ) );
    $title          = '';

    if( $sub )
    {
        $sub = "<span class='subtext'>{$sub}</span>";
    }

    if( $dimension === true )
    {
        $dimension = "height='100' width='300'"; //basically just for better page speed ranking :P
    }

    $logo = avia_get_option( 'logo' );
    if( ! empty( $logo ) )
    {
        $logo = apply_filters( 'avf_logo', $logo, 'option_set' );
        if( is_numeric( $logo ) )
        {
            $logo_id = $logo;
            $logo = wp_get_attachment_image_src( $logo_id, 'full' );
            if( is_array( $logo ) )
            {
                $logo = $logo[0];
                $title = get_the_title( $logo_id );
            }
        }

        $title = apply_filters( 'avf_logo_title', $title, 'option_set' );

        $logo = "<img {$dimension} src='{$logo}' alt='{$alt}' title='{$title}' />";
        $logo = "<{$headline_type} class='logo'><a href='{$link}'>{$logo}{$sub}</a></{$headline_type}>";
    }
    else
    {
        $logo = get_bloginfo('name');
        $use_image = apply_filters( 'avf_logo', $use_image, 'option_not_set' );

        $use_image = '';
        if( ! empty( $use_image ) )
        {
            $title = apply_filters( 'avf_logo_title', $logo, 'option_not_set' );
            $logo = "<img {$dimension} src='{$use_image}' alt='{$alt}' title='{$title}'/>";
        }

        $logo = "<{$headline_type} class='logo bg-logo'><a href='{$link}'>{$logo}{$sub}</a></{$headline_type}>";
    }

    $logo = apply_filters( 'avf_logo_final_output', $logo, $use_image, $headline_type, $sub, $alt, $link, $title );

    return $logo;
}