/**
 * SWFAddress 2.4: Deep linking for Flash and Ajax <http://www.asual.com/swfaddress/>
 *
 * SWFAddress is (c) 2006-2009 Rostislav Hristov and contributors
 * This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
 *
 */

if (typeof asual == "undefined") var asual = {};
if (typeof asual.util == "undefined") asual.util = {};

asual.util.Browser = new function() {
 
    var _agent = navigator.userAgent.toLowerCase(),
        _safari = /webkit/.test(_agent),
        _opera = /opera/.test(_agent),
        _msie = /msie/.test(_agent) && !/opera/.test(_agent),
        _mozilla = /mozilla/.test(_agent) && !/(compatible|webkit)/.test(_agent),
        _version = parseFloat(_msie ? _agent.substr(_agent.indexOf('msie') + 4) : 
            (_agent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [0,'0'])[1]);

    this.toString = function() {
        return '[class Browser]';
    };

    this.getVersion = function() {
        return _version;
    };

    this.isMSIE = function() {
        return _msie;
    };

    this.isSafari = function() {
        return _safari;
    };

    this.isOpera = function() {
        return _opera;
    };

    this.isMozilla = function() {
        return _mozilla;
    };
}

asual.util.Events = new function() {

    var DOM_LOADED = 'DOMContentLoaded', 
        STOP = 'onstop',
        _w = window,
        _d = document,
        _cache = [],
        _util = asual.util,
        _browser = _util.Browser,
        _msie = _browser.isMSIE(),
        _safari = _browser.isSafari();

    this.toString = function() {
        return '[class Events]';
    };

    this.addListener = function(obj, type, listener) {
        _cache.push({o: obj, t: type, l: listener});
        if (!(type == DOM_LOADED && (_msie || _safari))) {
            if (obj.addEventListener)
                obj.addEventListener(type, listener, false);
            else if (obj.attachEvent)
                obj.attachEvent('on' + type, listener);
        }
    };

    this.removeListener = function(obj, type, listener) {
        for (var i = 0, e; e = _cache[i]; i++) {
            if (e.o == obj && e.t == type && e.l == listener) {
                _cache.splice(i, 1);
                break;
            }
        }
        if (!(type == DOM_LOADED && (_msie || _safari))) {
            if (obj.removeEventListener)
                obj.removeEventListener(type, listener, false);
            else if (obj.detachEvent)
                obj.detachEvent('on' + type, listener);
        }
    };

    var _unload = function() {
        for (var i = 0, evt; evt = _cache[i]; i++) {
            if (evt.t != DOM_LOADED)
                _util.Events.removeListener(evt.o, evt.t, evt.l);
        }
    };

    var _unloadFix = function() {
        if (_d.readyState == 'interactive') {
            function stop() {
                _d.detachEvent(STOP, stop);
                _unload();
            };
            _d.attachEvent(STOP, stop);
            _w.setTimeout(function() {
                _d.detachEvent(STOP, stop);
            }, 0);
        }
    };

    if (_msie || _safari) {
        (function (){
            try {
                if ((_msie && _d.body) || !/loaded|complete/.test(_d.readyState))
                    _d.documentElement.doScroll('left');
            } catch(e) {
                return setTimeout(arguments.callee, 0);
            }
            for (var i = 0, e; e = _cache[i]; i++)
                if (e.t == DOM_LOADED) e.l.call(null);
        })();
    }

    if (_msie)
        _w.attachEvent('onbeforeunload', _unloadFix);

    this.addListener(_w, 'unload', _unload);
}

asual.util.Functions = new function() {

    this.toString = function() {
        return '[class Functions]';
    };

    this.bind = function(method, object, param) {
        for (var i = 2, p, arr = []; p = arguments[i]; i++)
            arr.push(p);
        return function() {
            return method.apply(object, arr);
        }
    };
}

var SWFAddressEvent = function(type) {

    this.toString = function() {
        return '[object SWFAddressEvent]';
    };

    this.type = type;

    this.target = [SWFAddress][0];

    this.value = SWFAddress.getValue();

    this.path = SWFAddress.getPath();

    this.pathNames = SWFAddress.getPathNames();

    this.parameters = {};

    var _parameterNames = SWFAddress.getParameterNames();
    for (var i = 0, l = _parameterNames.length; i < l; i++)
        this.parameters[_parameterNames[i]] = SWFAddress.getParameter(_parameterNames[i]);

    this.parameterNames = _parameterNames;

}

SWFAddressEvent.INIT = 'init';

SWFAddressEvent.CHANGE = 'change';

SWFAddressEvent.INTERNAL_CHANGE = 'internalChange';

SWFAddressEvent.EXTERNAL_CHANGE = 'externalChange';

var SWFAddress = new function() {

    var _getHash = function() {
        var index = _l.href.indexOf('#');
        return index != -1 ? _ec(_dc(_l.href.substr(index + 1))) : '';
    };

    var _getWindow = function() {
        try {
            top.document;
            return top;
        } catch (e) {
            return window;
        }
    };

    var _strictCheck = function(value, force) {
        if (_opts.strict)
            value = force ? (value.substr(0, 1) != '/' ? '/' + value : value) : (value == '' ? '/' : value);
        return value;
    };

    var _ieLocal = function(value, direction) {
        return (_msie && _l.protocol == 'file:') ? 
            (direction ? _value.replace(/\?/, '%3F') : _value.replace(/%253F/, '?')) : value;
    };

    var _searchScript = function(el) {
        if (el.childNodes) {
            for (var i = 0, l = el.childNodes.length, s; i < l; i++) {
                if (el.childNodes[i].src)
                    _url = String(el.childNodes[i].src);
                if (s = _searchScript(el.childNodes[i]))
                    return s;
            }
        }
    };

    var _titleCheck = function() {
        if (_d.title != _title && _d.title.indexOf('#') != -1)
            _d.title = _title;
    };

    var _listen = function() {
        if (!_silent) {
            var hash = _getHash();
            var diff = !(_value == hash);
            if (_safari && _version < 523) {
                if (_length != _h.length) {
                    _length = _h.length;
                    if (typeof _stack[_length - 1] != UNDEFINED)
                        _value = _stack[_length - 1];
                    _update.call(this, false);
                }
            } else if (_msie && diff) {
                if (_version < 7)
                    _l.reload();
                else
                    this.setValue(hash);
            } else if (diff) {
                _value = hash;
                _update.call(this, false);
            }
            if (_msie)
                _titleCheck.call(this);
        }
    };

    var _bodyClick = function(e) {
        if (_popup.length > 0) {
            var popup = window.open(_popup[0], _popup[1], eval(_popup[2]));
            if (typeof _popup[3] != UNDEFINED)
                eval(_popup[3]);
        }
        _popup = [];
    };

    var _swfChange = function() {
        for (var i = 0, id, obj, value = SWFAddress.getValue(), setter = 'setSWFAddressValue'; id = _ids[i]; i++) {
            obj = document.getElementById(id);
            if (obj) {
                if (obj.parentNode && typeof obj.parentNode.so != UNDEFINED) {
                    obj.parentNode.so.call(setter, value);
                } else {
                    if (!(obj && typeof obj[setter] != UNDEFINED)) {
                        var objects = obj.getElementsByTagName('object');
                        var embeds = obj.getElementsByTagName('embed');
                        obj = ((objects[0] && typeof objects[0][setter] != UNDEFINED) ? 
                            objects[0] : ((embeds[0] && typeof embeds[0][setter] != UNDEFINED) ? 
                                embeds[0] : null));
                    }
                    if (obj)
                        obj[setter](value);
                } 
            } else if (obj = document[id]) {
                if (typeof obj[setter] != UNDEFINED)
                    obj[setter](value);
            }
        }
    };

    var _jsDispatch = function(type) {
        this.dispatchEvent(new SWFAddressEvent(type));
        type = type.substr(0, 1).toUpperCase() + type.substr(1);
        if(typeof this['on' + type] == FUNCTION)
            this['on' + type]();
    };

    var _jsInit = function() {
        if (_util.Browser.isSafari())
            _d.body.addEventListener('click', _bodyClick);
        _jsDispatch.call(this, 'init');
    };

    var _jsChange = function() {
        _swfChange();
        _jsDispatch.call(this, 'change');
    };

    var _update = function(internal) {
        _jsChange.call(this);
        if (internal) {
            _jsDispatch.call(this, 'internalChange');
        } else {
            _jsDispatch.call(this, 'externalChange');
        }
        _st(_functions.bind(_track, this), 10);
    };

    var _track = function() {
        var value = (_l.pathname + (/\/$/.test(_l.pathname) ? '' : '/') + this.getValue()).replace(/\/\//, '/').replace(/^\/$/, '');
        var fn = _t[_opts.tracker];
        if (typeof fn == FUNCTION)
            fn(value);
        else if (typeof _t.pageTracker != UNDEFINED && typeof _t.pageTracker._trackPageview == FUNCTION)
            _t.pageTracker._trackPageview(value);
        else if (typeof _t.urchinTracker == FUNCTION) 
            _t.urchinTracker(value);
    };

    var _htmlWrite = function() {
        var doc = _frame.contentWindow.document;
        doc.open();
        doc.write('<html><head><title>' + _d.title + '</title><script>var ' + ID + ' = "' + _getHash() + '";</script></head></html>');
        doc.close();
    };

    var _htmlLoad = function() {
        var win = _frame.contentWindow;
        var src = win.location.href;
        _value = (typeof win[ID] != UNDEFINED ? win[ID] : '');
        if (_value != _getHash()) {
            _update.call(SWFAddress, false);
            _l.hash = _ieLocal(_value, TRUE);
        }
    };

    var _load = function() {
        if (!_loaded) {
            _loaded = TRUE;
            if (_msie && _version < 8) {
                var frameset = _d.getElementsByTagName('frameset')[0];
                _frame = _d.createElement((frameset ? '' : 'i') + 'frame');
                if (frameset) {
                    frameset.insertAdjacentElement('beforeEnd', _frame);
                    frameset[frameset.cols ? 'cols' : 'rows'] += ',0';
                    _frame.src = 'javascript:false';
                    _frame.noResize = true;
                    _frame.frameBorder = _frame.frameSpacing = 0;
                } else {
                    _frame.src = 'javascript:false';
                    _frame.style.display = 'none';
                    _d.body.insertAdjacentElement('afterBegin', _frame);
                }
                _st(function() {
                    _events.addListener(_frame, 'load', _htmlLoad);            
                    if (typeof _frame.contentWindow[ID] == UNDEFINED) 
                        _htmlWrite();
                }, 50);
            } else if (_safari) {
                if (_version < 418) {
                    _d.body.innerHTML += '<form id="' + ID + '" style="position:absolute;top:-9999px;" method="get"></form>';
                    _form = _d.getElementById(ID);
                }
                if (typeof _l[ID] == UNDEFINED) _l[ID] = {};
                if (typeof _l[ID][_l.pathname] != UNDEFINED) _stack = _l[ID][_l.pathname].split(',');
            }

            _st(_functions.bind(function() {
                _jsInit.call(this);
                _jsChange.call(this);
                _track.call(this);
            }, this), 1);

            if (_msie && _version >= 8) {
                _d.body.onhashchange = _functions.bind(_listen, this);
                _si(_functions.bind(_titleCheck, this), 50);
            } else {
                _si(_functions.bind(_listen, this), 50);
            }
        }
    };

    var ID = 'swfaddress',
        FUNCTION = 'function',
        UNDEFINED = 'undefined',
        TRUE = true,
        FALSE = false,
        _util = asual.util,
        _browser = _util.Browser, 
        _events = _util.Events,
        _functions = _util.Functions,
        _version = _browser.getVersion(),
        _msie = _browser.isMSIE(),
        _mozilla = _browser.isMozilla(),
        _opera = _browser.isOpera(),
        _safari = _browser.isSafari(),
        _supported = FALSE,
        _t = _getWindow(),
        _d = _t.document,
        _h = _t.history, 
        _l = _t.location,
        _si = setInterval,
        _st = setTimeout, 
        _dc = decodeURI,
        _ec = encodeURI,
        _frame,
        _form,
        _url,
        _title = _d.title, 
        _length = _h.length, 
        _silent = FALSE,
        _loaded = FALSE,
        _justset = TRUE,
        _juststart = TRUE,
        _ref = this,
        _stack = [], 
        _ids = [],
        _popup = [],
        _listeners = {},
        _value = _getHash(),
        _opts = {history: TRUE, strict: TRUE};    

    if (_msie && _d.documentMode && _d.documentMode != _version)
        _version = _d.documentMode != 8 ? 7 : 8;

    _supported = 
        (_mozilla && _version >= 1) || 
        (_msie && _version >= 6) ||
        (_opera && _version >= 9.5) ||
        (_safari && _version >= 312);

    if (_supported) {

        if (_opera) 
            history.navigationMode = 'compatible';

        for (var i = 1; i < _length; i++)
            _stack.push('');

        _stack.push(_getHash());

        if (_msie && _l.hash != _getHash())
            _l.hash = '#' + _ieLocal(_getHash(), TRUE);

        _searchScript(document);
        var _qi = _url ? _url.indexOf('?') : -1;
        if (_qi != -1) {
            var param, params = _url.substr(_qi + 1).split('&');
            for (var i = 0, p; p = params[i]; i++) {
                param = p.split('=');
                if (/^(history|strict)$/.test(param[0])) {
                    _opts[param[0]] = (isNaN(param[1]) ? /^(true|yes)$/i.test(param[1]) : (parseInt(param[1]) != 0));
                }
                if (/^tracker$/.test(param[0]))
                    _opts[param[0]] = param[1];
            }
        }

        if (_msie)
            _titleCheck.call(this);

        if (window == _t)
            _events.addListener(document, 'DOMContentLoaded', _functions.bind(_load, this));
        _events.addListener(_t, 'load', _functions.bind(_load, this));

    } else if ((!_supported && _l.href.indexOf('#') != -1) || 
        (_safari && _version < 418 && _l.href.indexOf('#') != -1 && _l.search != '')){
        _d.open();
        _d.write('<html><head><meta http-equiv="refresh" content="0;url=' + 
            _l.href.substr(0, _l.href.indexOf('#')) + '" /></head></html>');
        _d.close();
    } else {
        _track();
    }

    this.toString = function() {
        return '[class SWFAddress]';
    };

    this.back = function() {
        _h.back();
    };

    this.forward = function() {
        _h.forward();
    };

    this.up = function() {
        var path = this.getPath();
        this.setValue(path.substr(0, path.lastIndexOf('/', path.length - 2) + (path.substr(path.length - 1) == '/' ? 1 : 0)));
    };

    this.go = function(delta) {
        _h.go(delta);
    };

    this.href = function(url, target) {
        target = typeof target != UNDEFINED ? target : '_self';     
        if (target == '_self')
            self.location.href = url; 
        else if (target == '_top')
            _l.href = url; 
        else if (target == '_blank')
            window.open(url); 
        else
            _t.frames[target].location.href = url; 
    };

    this.popup = function(url, name, options, handler) {
        try {
            var popup = window.open(url, name, eval(options));
            if (typeof handler != UNDEFINED)
                eval(handler);
        } catch (ex) {}
        _popup = arguments;
    };

    this.getIds = function() {
        return _ids;
    };

    this.getId = function(index) {
        return _ids[0];
    };

    this.setId = function(id) {
        _ids[0] = id;
    };

    this.addId = function(id) {
        this.removeId(id);
        _ids.push(id);
    };

    this.removeId = function(id) {
        for (var i = 0; i < _ids.length; i++) {
            if (id == _ids[i]) {
                _ids.splice(i, 1);
                break;
            }
        }
    };

    this.addEventListener = function(type, listener) {
        if (typeof _listeners[type] == UNDEFINED)
            _listeners[type] = [];
        _listeners[type].push(listener);
    };

    this.removeEventListener = function(type, listener) {
        if (typeof _listeners[type] != UNDEFINED) {
            for (var i = 0, l; l = _listeners[type][i]; i++)
                if (l == listener) break;
            _listeners[type].splice(i, 1);
        }
    };

    this.dispatchEvent = function(event) {
        if (this.hasEventListener(event.type)) {
            event.target = this;
            for (var i = 0, l; l = _listeners[event.type][i]; i++)
                l(event);
            return TRUE;           
        }
        return FALSE;
    };

    this.hasEventListener = function(type) {
        return (typeof _listeners[type] != UNDEFINED && _listeners[type].length > 0);
    };

    this.getBaseURL = function() {
        var url = _l.href;
        if (url.indexOf('#') != -1)
            url = url.substr(0, url.indexOf('#'));
        if (url.substr(url.length - 1) == '/')
            url = url.substr(0, url.length - 1);
        return url;
    };

    this.getStrict = function() {
        return _opts.strict;
    };

    this.setStrict = function(strict) {
        _opts.strict = strict;
    };

    this.getHistory = function() {
        return _opts.history;
    };

    this.setHistory = function(history) {
        _opts.history = history;
    };

    this.getTracker = function() {
        return _opts.tracker;
    };

    this.setTracker = function(tracker) {
        _opts.tracker = tracker;
    };

    this.getTitle = function() {
        return _d.title;
    };

    this.setTitle = function(title) {
        if (!_supported) return null;
        if (typeof title == UNDEFINED) return;
        if (title == 'null') title = '';
        title = _dc(title);
        _st(function() {
            _title = _d.title = title;
            if (_juststart && _frame && _frame.contentWindow && _frame.contentWindow.document) {
                _frame.contentWindow.document.title = title;
                _juststart = FALSE;
            }
            if (!_justset && _mozilla)
                _l.replace(_l.href.indexOf('#') != -1 ? _l.href : _l.href + '#');
            _justset = FALSE;
        }, 10);
    };

    this.getStatus = function() {
        return _t.status;
    };

    this.setStatus = function(status) {
        if (!_supported) return null;
        if (typeof status == UNDEFINED) return;
        if (status == 'null') status = '';
        status = _dc(status);
        if (!_safari) {
            status = _strictCheck((status != 'null') ? status : '', TRUE);
            if (status == '/') status = '';
            if (!(/http(s)?:\/\//.test(status))) {
                var index = _l.href.indexOf('#');
                status = (index == -1 ? _l.href : _l.href.substr(0, index)) + '#' + status;
            }
            _t.status = status;
        }
    };

    this.resetStatus = function() {
        _t.status = '';
    };

    this.getValue = function() {
        if (!_supported) return null;
        return _dc(_strictCheck(_ieLocal(_value, FALSE), FALSE));
    };

    this.setValue = function(value) {
        if (!_supported) return null;
        if (typeof value == UNDEFINED) return;
        if (value == 'null') value = '';
        value = _ec(_dc(_strictCheck(value, TRUE)));
        if (value == '/') value = '';
        if (_value == value) return;
        _justset = TRUE;
        _value = value;
        _silent = TRUE;
        _update.call(SWFAddress, true);
        _stack[_h.length] = _value;
        if (_safari) {
            if (_opts.history) {
                _l[ID][_l.pathname] = _stack.toString();
                _length = _h.length + 1;
                if (_version < 418) {
                    if (_l.search == '') {
                        _form.action = '#' + _value;
                        _form.submit();
                    }
                } else if (_version < 523 || _value == '') {
                    var evt = _d.createEvent('MouseEvents');
                    evt.initEvent('click', TRUE, TRUE);
                    var anchor = _d.createElement('a');
                    anchor.href = '#' + _value;
                    anchor.dispatchEvent(evt);                
                } else {
                    _l.hash = '#' + _value;
                }
            } else {
                _l.replace('#' + _value);
            }
        } else if (_value != _getHash()) {
            if (_opts.history)
                _l.hash = '#' + _dc(_ieLocal(_value, TRUE));
            else
                _l.replace('#' + _dc(_value));
        }
        if ((_msie && _version < 8) && _opts.history) {
            _st(_htmlWrite, 50);
        }
        if (_safari)
            _st(function(){ _silent = FALSE; }, 1);
        else
            _silent = FALSE;
    };

    this.getPath = function() {
        var value = this.getValue();
        if (value.indexOf('?') != -1) {
            return value.split('?')[0];
        } else if (value.indexOf('#') != -1) {
            return value.split('#')[0];
        } else {
            return value;   
        }        
    };

    this.getPathNames = function() {
        var path = this.getPath(), names = path.split('/');
        if (path.substr(0, 1) == '/' || path.length == 0)
            names.splice(0, 1);
        if (path.substr(path.length - 1, 1) == '/')
            names.splice(names.length - 1, 1);
        return names;
    };

    this.getQueryString = function() {
        var value = this.getValue(), index = value.indexOf('?');
        if (index != -1 && index < value.length) 
            return value.substr(index + 1);
    };

    this.getParameter = function(param) {
        var value = this.getValue();
        var index = value.indexOf('?');
        if (index != -1) {
            value = value.substr(index + 1);
            var p, params = value.split('&'), i = params.length, r = [];
            while(i--) {
                p = params[i].split('=');
                if (p[0] == param)
                    r.push(p[1]);
            }
            if (r.length != 0)
                return r.length != 1 ? r : r[0];
        }
    };

    this.getParameterNames = function() {
        var value = this.getValue();
        var index = value.indexOf('?');
        var names = [];
        if (index != -1) {
            value = value.substr(index + 1);
            if (value != '' && value.indexOf('=') != -1) {
                var params = value.split('&'), i = 0;
                while(i < params.length) {
                    names.push(params[i].split('=')[0]);
                    i++;
                }
            }
        }
        return names;
    };

    this.onInit = null;

    this.onChange = null;

    this.onInternalChange = null;

    this.onExternalChange = null;

    (function() {

        var _args;

        if (typeof FlashObject != UNDEFINED) SWFObject = FlashObject;
        if (typeof SWFObject != UNDEFINED && SWFObject.prototype && SWFObject.prototype.write) {
            var _s1 = SWFObject.prototype.write;
            SWFObject.prototype.write = function() {
                _args = arguments;
                if (this.getAttribute('version').major < 8) {
                    this.addVariable('$swfaddress', SWFAddress.getValue());
                    ((typeof _args[0] == 'string') ? 
                        document.getElementById(_args[0]) : _args[0]).so = this;
                }
                var success;
                if (success = _s1.apply(this, _args))
                    _ref.addId(this.getAttribute('id'));
                return success;
            }
        } 

        if (typeof swfobject != UNDEFINED) {
            var _s2r = swfobject.registerObject;
            swfobject.registerObject = function() {
                _args = arguments;
                _s2r.apply(this, _args);
                _ref.addId(_args[0]);
            }
            var _s2c = swfobject.createSWF;
            swfobject.createSWF = function() {
                _args = arguments;
                var swf = _s2c.apply(this, _args);
                if (swf)
                    _ref.addId(_args[0].id);
                return swf;
            }
            var _s2e = swfobject.embedSWF;
            swfobject.embedSWF = function() {
                _args = arguments;
                if (typeof _args[8] == UNDEFINED)
                    _args[8] = {};
                if (typeof _args[8].id == UNDEFINED)
                    _args[8].id = _args[1];
                _s2e.apply(this, _args);
                _ref.addId(_args[8].id);
            }
        }

        if (typeof UFO != UNDEFINED) {
            var _u = UFO.create;
            UFO.create = function() {
                _args = arguments;
                _u.apply(this, _args);
                _ref.addId(_args[0].id);
            }
        }

        if (typeof AC_FL_RunContent != UNDEFINED) {
            var _a = AC_FL_RunContent;
            AC_FL_RunContent = function() {
                _args = arguments;        
                _a.apply(this, _args);
                for (var i = 0, l = _args.length; i < l; i++)
                    if (_args[i]== 'id') _ref.addId(_args[i+1]);
            }
        }

    })();
}