$.fn.slideshow = function () {

    var TWEEN_SPEED = 500;
    var easeOutExpoCubicBezier = "cubic-bezier(0.190, 1.000, 0.220, 1.000)";
    var easeOutExpoFunction = function (x, t, b, c, d) {
        return (t == d) ? b + c : c * (-Math.pow(2, -10 * t / d) + 1) + b;
    }

    var vP = "";
    var transitionEnd = "TransitionEnd";
    if ($.browser.webkit) {
        vP = "-webkit-";
        transitionEnd = "webkitTransitionEnd";
    } else if ($.browser.msie) {
        vP = "-ms-";
    } else if ($.browser.mozilla) {
        vP = "-moz-";
        transitionEnd = "transitionend";
    } else if ($.browser.opera) {
        vP = "-o-";
        transitionEnd = "oTransitionEnd";
    }

    return this.each(function () {

        var slideshow = $(this);
        var slides = slideshow.find('figure');
        var center = slides.first().addClass("center");
        var skip = slideshow.find('button[name=skip]');
        var selected = toggle(skip.first());
        var index = 0;
        var count = slides.length;
        var nxt = slideshow.find(".next");
        var prv = slideshow.find(".prev");

        var lock = false;
        if (count >= 2) slideshow.find("menu").show();

        slideshow.bind('goto', function (event, ind) {
            gotoIndex(ind);
        });

        function gotoIndex(no, dir) {

            if (index == no || lock) return;

            dir = dir || -1;
            index = no;
            center = transition(center, slides.eq(index), dir);
            selected = toggle(selected);
            selected = toggle(skip.eq(index));
        }

        if (Modernizr.csstransitions) {
            slides
                .css(vP + "transition-property", "all")
                .css(vP + "transition-timing-function", easeOutExpoCubicBezier);
        };

        function transition(from, to, dir) {

            if (Modernizr.csstransitions) {

                lock = true;

                var fromClass = (dir == 1) ? "right" : "left";
                var toClass = (dir == 1) ? "left" : "right";

                return to
                //set inital move from position
                    .css(vP + "transition-duration", "0ms")
                    .removeClass("left right center")
                    .addClass(toClass)
                    .delay(50, "doMove").queue("doMove", function () {
                        //move
                        from
                            .css(vP + "transition-duration", TWEEN_SPEED + "ms")
                            .removeClass("center")
                            .addClass(fromClass);
                        $(this)
                            .css(vP + "transition-duration", TWEEN_SPEED + "ms")
                            .removeClass(toClass)
                            .addClass("center")
                            .bind(transitionEnd, function () { lock = false; });
                    }).dequeue("doMove");
            } else {
                from
                    .stop(true, true)
                    .animate({ "left": dir * from.width() }, TWEEN_SPEED, easeOutExpoFunction);

                return to
                    .stop(true, true)
                    .css("left", -1 * dir * from.width())
                    .animate({ "left": "0" }, TWEEN_SPEED, easeOutExpoFunction);
            }
        }

        function toggle(button) {
            button.toggleClass('selected');

            var img = button.children('img');
            var key = 'data-src-toggle';
            var alternative = img.attr(key);
            var current = img.attr('src');

            img.attr('src', alternative);
            img.attr(key, current);

            return button;
        }

        skip.click(function () {
            gotoIndex($(this).val());
        });

        nxt.click(function () {
            if (index == count - 1)
                gotoIndex(0, -1);
            else
                gotoIndex(+index + 1, -1);
        });

        prv.click(function () {
            if (index > 0)
                gotoIndex(+index - 1, 1); 
            else
                gotoIndex(+count - 1, 1);
        });
    });
};

$.fn.sideshowSelector = function () {
    return this.each(function () {
        $(".slideshow").hide();
        $("#s1").show();
        var link = $(this);
        link.click(function (event) {
            $(".slideshow").hide();
            $("#s" + link.data("index")).show();
            event.preventDefault();
        });
    });
}

/**
* jQuery Cookie plugin
*
* Copyright (c) 2010 Klaus Hartl (stilbuero.de)
* Dual licensed under the MIT and GPL licenses:
* http://www.opensource.org/licenses/mit-license.php
* http://www.gnu.org/licenses/gpl.html
*
*/
jQuery.cookie = function (key, value, options) {
    // key and at least value given, set cookie...
    if (arguments.length > 1 && String(value) !== "[object Object]") {
        options = jQuery.extend({}, options);
        if (value === null || value === undefined) {
            options.expires = -1;
        }
        if (typeof options.expires === 'number') {
            var days = options.expires, t = options.expires = new Date();
            t.setDate(t.getDate() + days);
        }
        value = String(value);
        return (document.cookie = [
            encodeURIComponent(key), '=',
            options.raw ? value : encodeURIComponent(value),
            options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
            options.path ? '; path=' + options.path : '',
            options.domain ? '; domain=' + options.domain : '',
            options.secure ? '; secure' : ''
        ].join(''));
    }
    // key and possibly options given, get cookie...
    options = value || {};
    var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
    return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
};

$.fn.ellipsis = function () {
    return this.each(function () {
        var el = $(this);

        if (el.css("overflow") == "hidden") {
            var text = el.html();
            var multiline = el.hasClass('multiline');
            var t = $(this.cloneNode(true))
                                        .hide()
                                        .css('position', 'absolute')
                                        .css('overflow', 'visible')
                                        .width(multiline ? el.width() : 'auto')
                                        .height(multiline ? 'auto' : el.height())
                                        ;

            el.after(t);

            function height() { return t.height() > el.height(); };
            function width() { return t.width() > el.width(); };

            var func = multiline ? height : width;

            while (text.length > 0 && func()) {
                text = text.substr(0, text.length - 1);
                t.html(text + "…");
            }

            el.html(t.html());
            t.remove();
        }
    });
};


$.fn.alphanumeric = function (p) {
    p = $.extend({
        ichars: "!@#$%^&*()+=[]\\\';,/{}|\":<>?~`.- ",
        nchars: "",
        allow: ""
    }, p);
    return this.each(function () {
		if (p.nocaps) p.nchars += "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
		if (p.allcaps) p.nchars += "abcdefghijklmnopqrstuvwxyz";
		s = p.allow.split('');
		for (i = 0; i < s.length; i++) if (p.ichars.indexOf(s[i]) != -1) s[i] = "\\" + s[i];
		p.allow = s.join('|');
		var reg = new RegExp(p.allow, 'gi');
		var ch = p.ichars + p.nchars;
		ch = ch.replace(reg, '');
		$(this).keypress(function (e) {
			if (!e.charCode) k = String.fromCharCode(e.which);
			else k = String.fromCharCode(e.charCode);
			if (ch.indexOf(k) != -1) e.preventDefault();
			if (e.ctrlKey && k == 'v') e.preventDefault();
		});
		$(this).bind('contextmenu', function () { return false });
	});
};

$.fn.numeric = function (p) {
    var az = "abcdefghijklmnopqrstuvwxyz";
    az += az.toUpperCase();
    p = $.extend({
        nchars: az
    }, p);
    return this.each(function () {
        $(this).alphanumeric(p);
    });
};

$.fn.alpha = function (p) {
    var nm = "1234567890";
    p = $.extend({
        nchars: nm
    }, p);
    return this.each(function () {
        $(this).alphanumeric(p);
    });
};

$.fn.vAlign = function () {
    return this.each(function () {
        $(this).css('top', '50%').css('margin-top', -Math.ceil($(this).height() / 2) + "px");
    });
};

$.fn.pagePositionJumper = function () {
    var $this = this;
    var firstMove = 414;
    $this.show();
    $this.find(".up").click(function () {
        $('html,body').animate({ scrollTop: 0 }, 500);
    });
    $this.find(".down").click(function () {
        var targetOffset = firstMove;
        while (targetOffset <= window.pageYOffset) {
            targetOffset += 387;
        }
        $('html,body').animate({ scrollTop: targetOffset }, 500);
        $this.trigger("moveDown");
    });
}

$.fn.searchBox = function () {
    var searchBox = this;
    var checkSearchBoxAndDisableIfNeeded = function () {
        var $submit = $("#search button");
        if (searchBox.val().length == 0) {
            $submit.attr("disabled", true).addClass("disabled");
        } else {
            $submit.attr("disabled", false).removeClass("disabled");
        }
    }
    searchBox.keyup(checkSearchBoxAndDisableIfNeeded).change(checkSearchBoxAndDisableIfNeeded);
    checkSearchBoxAndDisableIfNeeded();
}

function getParameterByName(name) {
    name = name.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
    var regexS = "[\\?&]" + name + "=([^&#]*)";
    var regex = new RegExp(regexS);
    var results = regex.exec(window.location.href);
    if (results == null)
        return "";
    else
        return decodeURIComponent(results[1].replace(/\+/g, " "));
}

String.prototype.trunc =
     function (n, useWordBoundary) {
         var toLong = this.length > n,
             s_ = toLong ? this.substr(0, n - 1) : this;
         s_ = useWordBoundary && toLong ? s_.substr(0, s_.lastIndexOf(' ')) : s_;
         return toLong ? s_ + '...' : s_;
     };



$.fn.tweet = function (o) {
    var s = $.extend({
        username: null, // [string or array] required unless using the 'query' option; one or more twitter screen names (use 'list' option for multiple names, where possible)
        list: null, // [string] optional name of list belonging to username
        favorites: false, // [boolean] display the user's favorites instead of his tweets
        query: null, // [string] optional search query (see also: http://search.twitter.com/operators)
        avatar_size: null, // [integer] height and width of avatar if displayed (48px max)
        count: 2, // [integer] how many tweets to display?
        fetch: null, // [integer] how many tweets to fetch via the API (set this higher than 'count' if using the 'filter' option)
        page: 1, // [integer] which page of results to fetch (if count != fetch, you'll get unexpected results)
        retweets: false, // [boolean] whether to fetch (official) retweets (not supported in all display modes)
        intro_text: null, // [string] do you want text BEFORE your your tweets?
        outro_text: null, // [string] do you want text AFTER your tweets?
        join_text: null, // [string] optional text in between date and tweet, try setting to "auto"
        auto_join_text_default: "i said,", // [string] auto text for non verb: "i said" bullocks
        auto_join_text_ed: "i", // [string] auto text for past tense: "i" surfed
        auto_join_text_ing: "i am", // [string] auto tense for present tense: "i was" surfing
        auto_join_text_reply: "i replied to", // [string] auto tense for replies: "i replied to" @someone "with"
        auto_join_text_url: "i was looking at", // [string] auto tense for urls: "i was looking at" http:...
        loading_text: null, // [string] optional loading text, displayed while tweets load
        refresh_interval: null, // [integer] optional number of seconds after which to reload tweets
        twitter_url: "twitter.com", // [string] custom twitter url, if any (apigee, etc.)
        twitter_api_url: "api.twitter.com", // [string] custom twitter api url, if any (apigee, etc.)
        twitter_search_url: "search.twitter.com", // [string] custom twitter search url, if any (apigee, etc.)
        template: "{avatar}{text}{join}{time}", // [string or function] template used to construct each tweet <li> - see code for available vars
        comparator: function (tweet1, tweet2) { // [function] comparator used to sort tweets (see Array.sort)
            return tweet2["tweet_time"] - tweet1["tweet_time"];
        },
        maxLength : 140,
        filter: function (tweet) { // [function] whether or not to include a particular tweet (be sure to also set 'fetch')
            return true;
        }
    }, o);

    // See http://daringfireball.net/2010/07/improved_regex_for_matching_urls
    var url_regexp = /\b((?:[a-z][\w-]+:(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:'".,<>?«»“”‘’]))/gi;

    // Expand values inside simple string templates with {placeholders}
    function t(template, info) {
        if (typeof template === "string") {
            var result = template;
            for (var key in info) {
                var val = info[key];
                result = result.replace(new RegExp('{' + key + '}', 'g'), val === null ? '' : val);
            }
            return result;
        } else return template(info);
    }
    // Export the t function for use when passing a function as the 'template' option
    $.extend({ tweet: { t: t} });

    function replacer(regex, replacement) {
        return function () {
            var returning = [];
            this.each(function () {
                returning.push(this.replace(regex, replacement));
            });
            return $(returning);
        };
    }

    function escapeHTML(s) {
        return s.replace(/</g, "&lt;").replace(/>/g, "^&gt;");
    }

    $.fn.extend({
        linkUser: replacer(/(^|[\W])@(\w+)/gi, "$1@<a href=\"http://" + s.twitter_url + "/$2\">$2</a>"),
        // Support various latin1 (\u00**) and arabic (\u06**) alphanumeric chars
        linkHash: replacer(/(?:^| )[\#]+([\w\u00c0-\u00d6\u00d8-\u00f6\u00f8-\u00ff\u0600-\u06ff]+)/gi,
                         ' <a href="http://' + s.twitter_search_url + '/search?q=&tag=$1&lang=all' + ((s.username && s.username.length == 1 && !s.list) ? '&from=' + s.username.join("%2BOR%2B") : '') + '">#$1</a>'),
        capAwesome: replacer(/\b(awesome)\b/gi, '<span class="awesome">$1</span>'),
        capEpic: replacer(/\b(epic)\b/gi, '<span class="epic">$1</span>'),
        makeHeart: replacer(/(&lt;)+[3]/gi, "<tt class='heart'>&#x2665;</tt>")
    });

    function linkURLs(text, entities) {
        return text.replace(url_regexp, function (match) {
            var url = (/^[a-z]+:/i).test(match) ? match : "http://" + match;
            var text = match;
            for (var i = 0; i < entities.length; ++i) {
                var entity = entities[i];
                if (entity.url == url && entity.expanded_url) {
                    url = entity.expanded_url;
                    text = entity.display_url;
                    break;
                }
            }
            return "<a href=\"" + escapeHTML(url) + "\">" + escapeHTML(text) + "</a>";
        });
    }

    function parse_date(date_str) {
        // The non-search twitter APIs return inconsistently-formatted dates, which Date.parse
        // cannot handle in IE. We therefore perform the following transformation:
        // "Wed Apr 29 08:53:31 +0000 2009" => "Wed, Apr 29 2009 08:53:31 +0000"
        return Date.parse(date_str.replace(/^([a-z]{3})( [a-z]{3} \d\d?)(.*)( \d{4})$/i, '$1,$2$4$3'));
    }

    function relative_time(date) {
        var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
        var delta = parseInt((relative_to.getTime() - date) / 1000, 10);
        var r = '';
        if (delta < 1) {
            r = 'just now';
        } else if (delta < 60) {
            r = delta + ' seconds ago';
        } else if (delta < 120) {
            r = 'a minute ago';
        } else if (delta < (45 * 60)) {
            r = (parseInt(delta / 60, 10)).toString() + ' minutes ago';
        } else if (delta < (2 * 60 * 60)) {
            r = 'an hour ago';
        } else if (delta < (24 * 60 * 60)) {
            r = '' + (parseInt(delta / 3600, 10)).toString() + ' hours ago';
        } else if (delta < (48 * 60 * 60)) {
            r = 'a day ago';
        } else {
            r = (parseInt(delta / 86400, 10)).toString() + ' days ago';
        }
        return 'about ' + r;
    }

    function build_auto_join_text(text) {
        if (text.match(/^(@([A-Za-z0-9-_]+)) .*/i)) {
            return s.auto_join_text_reply;
        } else if (text.match(url_regexp)) {
            return s.auto_join_text_url;
        } else if (text.match(/^((\w+ed)|just) .*/im)) {
            return s.auto_join_text_ed;
        } else if (text.match(/^(\w*ing) .*/i)) {
            return s.auto_join_text_ing;
        } else {
            return s.auto_join_text_default;
        }
    }

    function build_api_url() {
        var proto = ('https:' == document.location.protocol ? 'https:' : 'http:');
        var count = (s.fetch === null) ? s.count : s.fetch;
        var common_params = '&include_entities=1&callback=?';
        if (s.list) {
            return proto + "//" + s.twitter_api_url + "/1/" + s.username[0] + "/lists/" + s.list + "/statuses.json?page=" + s.page + "&per_page=" + count + common_params;
        } else if (s.favorites) {
            return proto + "//" + s.twitter_api_url + "/favorites/" + s.username[0] + ".json?page=" + s.page + "&count=" + count + common_params;
        } else if (s.query === null && s.username.length == 1) {
            return proto + '//' + s.twitter_api_url + '/1/statuses/user_timeline.json?screen_name=' + s.username[0] + '&count=' + count + (s.retweets ? '&include_rts=1' : '') + '&exclude_replies=true&page=' + s.page + common_params;
        } else {
            var query = (s.query || 'from:' + s.username.join(' OR from:'));
            return proto + '//' + s.twitter_search_url + '/search.json?&q=' + encodeURIComponent(query) + '&rpp=' + count + '&page=' + s.page + common_params;
        }
    }

    function extract_avatar_url(item, secure) {
        if (secure) {
            return ('user' in item) ?
          item.user.profile_image_url_https :
          extract_avatar_url(item, false).
            replace(/^http:\/\/[a-z0-9]{1,3}\.twimg\.com\//, "https://s3.amazonaws.com/twitter_production/");
        } else {
            return item.profile_image_url || item.user.profile_image_url;
        }
    }

    // Convert twitter API objects into data available for
    // constructing each tweet <li> using a template
    function extract_template_data(item) {
        var o = {};
        o.item = item;
        o.source = item.source.trunc(s.maxLength);
        o.screen_name = item.from_user || item.user.screen_name;
        o.avatar_size = s.avatar_size;
        o.avatar_url = extract_avatar_url(item, (document.location.protocol === 'https:'));
        o.retweet = typeof (item.retweeted_status) != 'undefined';
        o.tweet_time = parse_date(item.created_at);
        o.join_text = s.join_text == "auto" ? build_auto_join_text(item.text) : s.join_text;
        o.tweet_id = item.id_str;
        o.twitter_base = "http://" + s.twitter_url + "/";
        o.user_url = o.twitter_base + o.screen_name;
        o.tweet_url = o.user_url + "/status/" + o.tweet_id;
        o.reply_url = o.twitter_base + "intent/tweet?in_reply_to=" + o.tweet_id;
        o.retweet_url = o.twitter_base + "intent/retweet?tweet_id=" + o.tweet_id;
        o.favorite_url = o.twitter_base + "intent/favorite?tweet_id=" + o.tweet_id;
        o.retweeted_screen_name = o.retweet && item.retweeted_status.user.screen_name;
        o.tweet_relative_time = relative_time(o.tweet_time);
        o.entities = item.entities ? (item.entities.urls || []).concat(item.entities.media || []) : [];
        o.tweet_raw_text = o.retweet ? ('RT @' + o.retweeted_screen_name + ' ' + item.retweeted_status.text) : item.text; // avoid '...' in long retweets
        o.tweet_text = $([linkURLs(o.tweet_raw_text.trunc(s.maxLength, true), o.entities)]).linkUser().linkHash()[0];
        o.tweet_text_fancy = $([o.tweet_text]).makeHeart().capAwesome().capEpic()[0];

        // Default spans, and pre-formatted blocks for common layouts
        o.user = t('<a class="tweet_user" href="{user_url}">{screen_name}</a>', o);
        o.join = s.join_text ? t(' <span class="tweet_join">{join_text}</span> ', o) : ' ';
        o.avatar = o.avatar_size ?
        t('<a class="tweet_avatar" href="{user_url}"><img src="{avatar_url}" height="{avatar_size}" width="{avatar_size}" alt="{screen_name}\'s avatar" title="{screen_name}\'s avatar" border="0"/></a>', o) : '';
        o.time = t('<span class="tweet_time"><a href="{tweet_url}" title="view tweet on twitter">{tweet_relative_time}</a></span>', o);
        o.text = t('<span class="tweet_text">{tweet_text_fancy}</span>', o);
        o.reply_action = t('<a class="tweet_action tweet_reply" href="{reply_url}">reply</a>', o);
        o.retweet_action = t('<a class="tweet_action tweet_retweet" href="{retweet_url}">retweet</a>', o);
        o.favorite_action = t('<a class="tweet_action tweet_favorite" href="{favorite_url}">favorite</a>', o);
        return o;
    }

    return this.each(function (i, widget) {
        var list = $('<ul class="tweet_list">');
        var intro = '<p class="tweet_intro">' + s.intro_text + '</p>';
        var outro = '<p class="tweet_outro">' + s.outro_text + '</p>';
        var loading = $('<p class="loading">' + s.loading_text + '</p>');

        if (s.username && typeof (s.username) == "string") {
            s.username = [s.username];
        }

        $(widget).bind("tweet:load", function () {
            if (s.loading_text) $(widget).empty().append(loading);
            $.getJSON(build_api_url(), function (data) {
                $(widget).empty().append(list);
                if (s.intro_text) list.before(intro);
                list.empty();
                var tweets = $.map(data.results || data, extract_template_data);
                tweets = $.grep(tweets, s.filter).sort(s.comparator).slice(0, s.count);
                list.append($.map(tweets, function (o) { return "<li>" + t(s.template, o) + "</li>"; }).join('')).
              children('li:first').addClass('tweet_first').end().
              children('li:odd').addClass('tweet_even').end().
              children('li:even').addClass('tweet_odd');

                if (s.outro_text) list.after(outro);
                $(widget).trigger("loaded").trigger((tweets.length === 0 ? "empty" : "full"));
                if (s.refresh_interval) {
                    window.setTimeout(function () { $(widget).trigger("tweet:load"); }, 1000 * s.refresh_interval);
                }
            });
        }).trigger("tweet:load");
    });
};




$("#search input").searchBox();

$.fn.homepageViewMore = function () {
    var lock = false;
    

    $("#viewmore").click(function (evt) {
        if (lock) return;
        lock = true;
        var $link = $(this);
        /* Retrieve the items */
        $.post(this.href, function (result) {
            $("#social").before($(result).fadeIn());
            if (result.indexOf("last-item") != -1) $link.remove();

            var extraItems = $("#home-grid li").length - 7;
            var extraSpace = 772;
            while (extraItems > 0) {
                extraSpace += 386;
                extraItems -= 3;
                if (extraItems > 0) {
                    extraSpace += 386;
                    extraItems -= 4;    
                }
            }
            $("#home-grid").css("min-height", extraSpace + "px");

            lock = false;
        });
        /* Increment counter */
        var more = $link.data("more") + 1;
        $link.data("more", more);
        $link.attr("href", "/?more=" + more);
        /* Make space for the items (if we are already moving this needs to happen so we can scroll) */
//        $("#content").css("min-height", (more * 772 - 386) + "px");
        evt.preventDefault();
    });
    $("#pagePositionJumper").live("moveDown", function () {
        $("#viewmore").trigger("click");
    });
    $(window).scroll(function () {
        if ($(window).scrollTop() >= $(document).height() - $(window).height() - 10) {
            $("#viewmore").trigger("click");
        }
    });
}


$.fn.menuRollovers = function () {
    var menu = this;
    var menuItems = menu.find("li a");
    var current = menu.find("li a.current");
    var currentBlock;
    var moveToItem = function (menuItem, delay) {
        delay = delay || 0;
        currentBlock.stop(true).delay(delay).animate({
            "left": menuItem.position().left + 150,
            "width": menuItem.width() + 9
        }, 200);
    }
    var createBlockAt = function (item) {
        currentBlock = $("<div class='navblock'>")
        .css("left", 150 + item.position().left)
        .width(item.width() + 9)
        .appendTo(menu);
    }
    menuItems.hover(
        function () {
            if (currentBlock == null) {
                createBlockAt($(this));
                return;
            } else {
                moveToItem($(this));
            }
        },
        function () {
            if (current.length == 0) {
                currentBlock.stop(true, true).delay(100).fadeOut(100)
                    .queue(function () { currentBlock = null; });
            } else {
                moveToItem(current, 100);
            }
        }
    );

    if (current.length != 0) createBlockAt(current);
    menu.addClass("scripted-rollovers");
}
$("#wrapper > nav").menuRollovers();