$(document).ready(function($) {
        function load(href) {
            $('#principal').load(href);
        }

        $.history.init(function(url) {
                load(url == "" ? "1" : url);
            });

        $('.ajax a').live('click', function(e) {
                var url = $(this).attr('href'), afficher;
             <!--   url = url.replace(/^.*#/, '');-->
                $.history.load(url);
				e.preventDefault();
                return false;
            });
    });