Put HTML code in PHP array

I have this code for my WordPress theme panel:

$options[] = array( "name" => __('Top Button','framework_localize'),
            "desc" => __('Show back to top button.','framework_localize'),
            "id" => $shortname."_btn_top",
            "std" => "1",
            "type" => "radio",
            "options" => array(
                'Show' => 'Show',
                'Hide' => 'Hide',
                ));

And I want to set HTML code for top button scroll when show option is selected and nothing for when hide is selected.

My HTML code for top button is this:

<a type="button" href="#" class="topbutton" data-toggle="tooltip" data-placement="left" title="Back to top"></a>