How to Customize the Genesis Footer - Return to Top of Page

functions.php

/** Customize the Return to Top of Page */
add_filter('genesis_footer_backtotop_text', 'eo_custom_footer_backtotop');
function eo_custom_footer_backtotop($backtotop)
{
  $backtotop = '<a href="#wrap" rel="nofollow">Click to Go Up</a>';
  return $backtotop;
}