RoR error_messages_for in jQuery Mobile

gistfile1.js

// run this after pageload/DOM ready
// this will modify HTML generated by Ruby on Rails :error_messages_for helper method
function jqmify_error_messages_for() {
  var sel = $("div.errorExplanation");
  if (sel.length>0) {
    sel.parent().addClass("ui-body").addClass("ui-body-e");
    sel.attr('data-role','collapsible')
      .attr('data-theme','e')
      .collapsible()
      .trigger('expand');
    if (sel.find("ul")) {
      sel.find("ul")
        .attr('data-role','listview')
        .attr('data-inset','true')
        .attr('data-theme','e')
        .listview();
    }
  }
}