how to switch jquery versions ONLY for the frontside theme

gistfile1.txt

/* Unset jquery, add back in the upgraded version, compatible with Bootstrap */
/* since this happens at the theme level, Drupal's admin theme can use the old version */
function THEMENAME_js_alter(&$javascript) {
  unset($javascript['misc/jquery.js']);
}

function THEMENAME_preprocess_page(&$variables,$hook) { 
  /* Unset jquery, add back in the upgraded version, compatible with Bootstrap */
  /* since this happens at the theme level, Drupal's admin theme can use the old version */
  drupal_add_js(drupal_get_path('theme', 'THEMENAME') . '/assets/js/vendor/jquery/1.7/jquery.min.js', array('group' => -200, 'weight' => -100));
}