jQuery Paginator script

jquery.paginator.js

/*!
 * jQuery Paginator v1.0 - 20 Aug 2011
 * Copyright 2011 Sean B. Palmer, Apache License 2.0
 * http://sbp.so/paginator
 */

$(function () {
   var body = $('body'); 
   var content = false; 
   
   function restore_ids(elements) {
      $('[data-id]', elements).each(function() {
         var e = $(this); 
         e.attr('id', e.attr('data-id')).removeAttr('data-id'); 
      }); 
   }

   function restore_content() {
      body.append(content.children()); 
      content = false; 
   }

   $(window).hashchange(function() {
      if (content || location.hash)
      {
         if (!content) // -> page, body -> page
         {
            // Only restore_ids for body -> page really
            // But we can't detect body -> page by itself easily
            restore_ids(body); 
            var page = $(location.hash, body); 
            if (!page.size()) return; 
            content = $('<div>').append(body.children().detach()); 
            body.append(page.clone(true).removeAttr('id')); 
         }
      
         else if (location.hash) // page -> page
         {
            restore_ids(content); 
            body.empty(); 
            var page = $(location.hash, content); 
            if (!page.size()) return restore_content(); 
            body.append(page.clone(true).removeAttr('id')); 
         }
      
         else // page -> body
         { 
            body.empty(); 
            restore_content(); 
         }
      } // else, -> body
   }); 

   $('a[href^=#]').click(function() {
      var hash = $(this).attr('href'); 
      $(hash).attr('data-id', hash.substring(1)).removeAttr('id');  
   }); 

   $(window).hashchange(); 
});