var rfc = function() {

    var ports = [];
    var step = 0;
    var steps = {
	/* Grab list of servers */
	1: function() {
	    $.jsonp({
		url: "servers?callback=?",
		success: function(data) {
		    ports = data.servers;
		    for (var i = 0; i < ports.length; i++) {
			var el = $("#ports")
			if (i > 0) el.append(", ");
			$("<a href='https://"
			  + location.hostname +":"
			  + ports[i] + "'>"
			  + ports[i] + "</a>").appendTo(el);
		    }
		    
		    /* Setup the start button */
		    $("#start").click(function() {
			nextstep();
		    });

		    nextstep();
		},
		error: error
	    });
	},
	/* Get cipher */
	3: function() {
	    $.jsonp({
		url: "session?callback=?",
		success: function(data) {
		    var cipher = data.cipher;
		    var version = data.version
		    $("#cipher").text(cipher);
		    $("#version").text(version);
		    nextstep();
		},
		error: error
	    });
	},
	/* Session ID without cache nor tickets */
	4: function() {
	    checksessionid(ports[0], function(same) {
		var wotickets = same;
		$("#resume1").text(wotickets?"does":"does not");
		nextstep();
	    });
	},
	/* Session ID without tickets */
	5: function() {
	    checksessionid(ports[1], function(same) {
		var wotickets = same;
		$("#resume2").text(wotickets?"does":"does not");
		nextstep();
	    });
	},
	/* Session ID with tickets */
	6: function() {
	    checksessionid(ports[3], function(same) {
		var wtickets = same;
		$("#resume3").text(wtickets?"does":"does not");
		nextstep();
	    });
	},
	/* Session ID with both cache and tickets */
	7: function() {
	    checksessionid(ports[2], function(same) {
		var wtickets = same;
		$("#resume4").text(wtickets?"does":"does not");
		nextstep();
	    });
	}
    };

    function nextstep() {
	$(".step" + step)
	    .filter(".running")
	    .removeClass("current")
	    .hide();
	$(".step" + step)
	    .filter(".done").fadeIn();
	step = step + 1;
	$(".step" + step)
	    .filter(".running")
	    .addClass("current")
	    .fadeIn(200, function() {
		$('html, body')
		    .stop()
		    .animate({scrollTop: $('body').height()},
			     800);
	    });
	if (steps[step] !== undefined)
	    setTimeout(steps[step], 200);
    }

    function error() {
	$(".error").fadeIn(200);
    }

    function checksessionid(port, cb) {
	/* Ask for /session several time and check that session ID are
	 * still the same */
	var tries = 4; var errtries = 2;
	var sessions = [];
	var url = "https://"
	    + location.hostname
	    + ":" + port
	    + "/session";
	var dotry = function() {
	    $.jsonp({
		url: url + "?callback=?",
		success: function(data) {
		    sessions.push(data.sessionid);
		    tries = tries - 1;
		    if (tries === 0) {
			/* Check if session ID are the same */
			/* Skip the first result. This may be empty or
			 * an old session. */
			for (var i=2; i < sessions.length; i++) {
			    if (sessions[i] !== sessions[1]) {
				cb(false);
				return;
			    }
			}
			/* Maybe there is no session at all */
			cb(sessions[1] !== '');
		    } else dotry();
		},
		error: function() {
		    /* Because of some obscure bug in Internet
		       Explorer SSL handshake may fail the first time
		       we request something on server without cache
		       and with tickets. */
		    errtries -= 1;
		    if (errtries > 0) dotry()
		    else error();
		}
	    });
	};
	dotry();
    }

    $(function() {
	/* Fill navigator name */
	$("#ua").text(navigator.userAgent);
	nextstep();
    });

}();