// Phorum object. Other JavaScript code for Phorum can extend
// this one to implement functionality without risking
// name space collissions.
Phorum = {};

/* Added by module "core", file "include/ajax/json2.js.php" */
/*
    http://www.JSON.org/json2.js
    2009-09-29

    Public Domain.

    NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.

    See http://www.JSON.org/js.html


    This code should be minified before deployment.
    See http://javascript.crockford.com/jsmin.html

    USE YOUR OWN COPY. IT IS EXTREMELY UNWISE TO LOAD CODE FROM SERVERS YOU DO
    NOT CONTROL.


    This file creates a global JSON object containing two methods: stringify
    and parse.

        JSON.stringify(value, replacer, space)
            value       any JavaScript value, usually an object or array.

            replacer    an optional parameter that determines how object
                        values are stringified for objects. It can be a
                        function or an array of strings.

            space       an optional parameter that specifies the indentation
                        of nested structures. If it is omitted, the text will
                        be packed without extra whitespace. If it is a number,
                        it will specify the number of spaces to indent at each
                        level. If it is a string (such as '\t' or ' '),
                        it contains the characters used to indent at each level.

            This method produces a JSON text from a JavaScript value.

            When an object value is found, if the object contains a toJSON
            method, its toJSON method will be called and the result will be
            stringified. A toJSON method does not serialize: it returns the
            value represented by the name/value pair that should be serialized,
            or undefined if nothing should be serialized. The toJSON method
            will be passed the key associated with the value, and this will be
            bound to the value

            For example, this would serialize Dates as ISO strings.

                Date.prototype.toJSON = function (key) {
                    function f(n) {
                        // Format integers to have at least two digits.
                        return n < 10 ? '0' + n : n;
                    }

                    return this.getUTCFullYear()   + '-' +
                         f(this.getUTCMonth() + 1) + '-' +
                         f(this.getUTCDate())      + 'T' +
                         f(this.getUTCHours())     + ':' +
                         f(this.getUTCMinutes())   + ':' +
                         f(this.getUTCSeconds())   + 'Z';
                };

            You can provide an optional replacer method. It will be passed the
            key and value of each member, with this bound to the containing
            object. The value that is returned from your method will be
            serialized. If your method returns undefined, then the member will
            be excluded from the serialization.

            If the replacer parameter is an array of strings, then it will be
            used to select the members to be serialized. It filters the results
            such that only members with keys listed in the replacer array are
            stringified.

            Values that do not have JSON representations, such as undefined or
            functions, will not be serialized. Such values in objects will be
            dropped; in arrays they will be replaced with null. You can use
            a replacer function to replace those with JSON values.
            JSON.stringify(undefined) returns undefined.

            The optional space parameter produces a stringification of the
            value that is filled with line breaks and indentation to make it
            easier to read.

            If the space parameter is a non-empty string, then that string will
            be used for indentation. If the space parameter is a number, then
            the indentation will be that many spaces.

            Example:

            text = JSON.stringify(['e', {pluribus: 'unum'}]);
            // text is '["e",{"pluribus":"unum"}]'


            text = JSON.stringify(['e', {pluribus: 'unum'}], null, '\t');
            // text is '[\n\t"e",\n\t{\n\t\t"pluribus": "unum"\n\t}\n]'

            text = JSON.stringify([new Date()], function (key, value) {
                return this[key] instanceof Date ?
                    'Date(' + this[key] + ')' : value;
            });
            // text is '["Date(---current time---)"]'


        JSON.parse(text, reviver)
            This method parses a JSON text to produce an object or array.
            It can throw a SyntaxError exception.

            The optional reviver parameter is a function that can filter and
            transform the results. It receives each of the keys and values,
            and its return value is used instead of the original value.
            If it returns what it received, then the structure is not modified.
            If it returns undefined then the member is deleted.

            Example:

            // Parse the text. Values that look like ISO date strings will
            // be converted to Date objects.

            myData = JSON.parse(text, function (key, value) {
                var a;
                if (typeof value === 'string') {
                    a =
/^(\d{4})-(\d{2})-(\d{2})T(\d{2}):(\d{2}):(\d{2}(?:\.\d*)?)Z$/.exec(value);
                    if (a) {
                        return new Date(Date.UTC(+a[1], +a[2] - 1, +a[3], +a[4],
                            +a[5], +a[6]));
                    }
                }
                return value;
            });

            myData = JSON.parse('["Date(09/09/2001)"]', function (key, value) {
                var d;
                if (typeof value === 'string' &&
                        value.slice(0, 5) === 'Date(' &&
                        value.slice(-1) === ')') {
                    d = new Date(value.slice(5, -1));
                    if (d) {
                        return d;
                    }
                }
                return value;
            });


    This is a reference implementation. You are free to copy, modify, or
    redistribute.
*/

/*jslint evil: true, strict: false */

/*members "", "\b", "\t", "\n", "\f", "\r", "\"", JSON, "\\", apply,
    call, charCodeAt, getUTCDate, getUTCFullYear, getUTCHours,
    getUTCMinutes, getUTCMonth, getUTCSeconds, hasOwnProperty, join,
    lastIndex, length, parse, prototype, push, replace, slice, stringify,
    test, toJSON, toString, valueOf
*/


// Create a JSON object only if one does not already exist. We create the
// methods in a closure to avoid creating global variables.

if (!this.JSON) {
    this.JSON = {};
}

(function () {

    function f(n) {
        // Format integers to have at least two digits.
        return n < 10 ? '0' + n : n;
    }

    if (typeof Date.prototype.toJSON !== 'function') {

        Date.prototype.toJSON = function (key) {

            return isFinite(this.valueOf()) ?
                   this.getUTCFullYear()   + '-' +
                 f(this.getUTCMonth() + 1) + '-' +
                 f(this.getUTCDate())      + 'T' +
                 f(this.getUTCHours())     + ':' +
                 f(this.getUTCMinutes())   + ':' +
                 f(this.getUTCSeconds())   + 'Z' : null;
        };

        String.prototype.toJSON =
        Number.prototype.toJSON =
        Boolean.prototype.toJSON = function (key) {
            return this.valueOf();
        };
    }

    var cx = /[\u0000\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        escapable = /[\\\"\x00-\x1f\x7f-\x9f\u00ad\u0600-\u0604\u070f\u17b4\u17b5\u200c-\u200f\u2028-\u202f\u2060-\u206f\ufeff\ufff0-\uffff]/g,
        gap,
        indent,
        meta = {    // table of character substitutions
            '\b': '\\b',
            '\t': '\\t',
            '\n': '\\n',
            '\f': '\\f',
            '\r': '\\r',
            '"' : '\\"',
            '\\': '\\\\'
        },
        rep;


    function quote(string) {

// If the string contains no control characters, no quote characters, and no
// backslash characters, then we can safely slap some quotes around it.
// Otherwise we must also replace the offending characters with safe escape
// sequences.

        escapable.lastIndex = 0;
        return escapable.test(string) ?
            '"' + string.replace(escapable, function (a) {
                var c = meta[a];
                return typeof c === 'string' ? c :
                    '\\u' + ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
            }) + '"' :
            '"' + string + '"';
    }


    function str(key, holder) {

// Produce a string from holder[key].

        var i,          // The loop counter.
            k,          // The member key.
            v,          // The member value.
            length,
            mind = gap,
            partial,
            value = holder[key];

// If the value has a toJSON method, call it to obtain a replacement value.

        if (value && typeof value === 'object' &&
                typeof value.toJSON === 'function') {
            value = value.toJSON(key);
        }

// If we were called with a replacer function, then call the replacer to
// obtain a replacement value.

        if (typeof rep === 'function') {
            value = rep.call(holder, key, value);
        }

// What happens next depends on the value's type.

        switch (typeof value) {
        case 'string':
            return quote(value);

        case 'number':

// JSON numbers must be finite. Encode non-finite numbers as null.

            return isFinite(value) ? String(value) : 'null';

        case 'boolean':
        case 'null':

// If the value is a boolean or null, convert it to a string. Note:
// typeof null does not produce 'null'. The case is included here in
// the remote chance that this gets fixed someday.

            return String(value);

// If the type is 'object', we might be dealing with an object or an array or
// null.

        case 'object':

// Due to a specification blunder in ECMAScript, typeof null is 'object',
// so watch out for that case.

            if (!value) {
                return 'null';
            }

// Make an array to hold the partial results of stringifying this object value.

            gap += indent;
            partial = [];

// Is the value an array?

            if (Object.prototype.toString.apply(value) === '[object Array]') {

// The value is an array. Stringify every element. Use null as a placeholder
// for non-JSON values.

                length = value.length;
                for (i = 0; i < length; i += 1) {
                    partial[i] = str(i, value) || 'null';
                }

// Join all of the elements together, separated with commas, and wrap them in
// brackets.

                v = partial.length === 0 ? '[]' :
                    gap ? '[\n' + gap +
                            partial.join(',\n' + gap) + '\n' +
                                mind + ']' :
                          '[' + partial.join(',') + ']';
                gap = mind;
                return v;
            }

// If the replacer is an array, use it to select the members to be stringified.

            if (rep && typeof rep === 'object') {
                length = rep.length;
                for (i = 0; i < length; i += 1) {
                    k = rep[i];
                    if (typeof k === 'string') {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            } else {

// Otherwise, iterate through all of the keys in the object.

                for (k in value) {
                    if (Object.hasOwnProperty.call(value, k)) {
                        v = str(k, value);
                        if (v) {
                            partial.push(quote(k) + (gap ? ': ' : ':') + v);
                        }
                    }
                }
            }

// Join all of the member texts together, separated with commas,
// and wrap them in braces.

            v = partial.length === 0 ? '{}' :
                gap ? '{\n' + gap + partial.join(',\n' + gap) + '\n' +
                        mind + '}' : '{' + partial.join(',') + '}';
            gap = mind;
            return v;
        }
    }

// If the JSON object does not yet have a stringify method, give it one.

    if (typeof JSON.stringify !== 'function') {
        JSON.stringify = function (value, replacer, space) {

// The stringify method takes a value and an optional replacer, and an optional
// space parameter, and returns a JSON text. The replacer can be a function
// that can replace values, or an array of strings that will select the keys.
// A default replacer method can be provided. Use of the space parameter can
// produce text that is more easily readable.

            var i;
            gap = '';
            indent = '';

// If the space parameter is a number, make an indent string containing that
// many spaces.

            if (typeof space === 'number') {
                for (i = 0; i < space; i += 1) {
                    indent += ' ';
                }

// If the space parameter is a string, it will be used as the indent string.

            } else if (typeof space === 'string') {
                indent = space;
            }

// If there is a replacer, it must be a function or an array.
// Otherwise, throw an error.

            rep = replacer;
            if (replacer && typeof replacer !== 'function' &&
                    (typeof replacer !== 'object' ||
                     typeof replacer.length !== 'number')) {
                throw new Error('JSON.stringify');
            }

// Make a fake root object containing our value under the key of ''.
// Return the result of stringifying the value.

            return str('', {'': value});
        };
    }


// If the JSON object does not yet have a parse method, give it one.

    if (typeof JSON.parse !== 'function') {
        JSON.parse = function (text, reviver) {

// The parse method takes a text and an optional reviver function, and returns
// a JavaScript value if the text is a valid JSON text.

            var j;

            function walk(holder, key) {

// The walk method is used to recursively walk the resulting structure so
// that modifications can be made.

                var k, v, value = holder[key];
                if (value && typeof value === 'object') {
                    for (k in value) {
                        if (Object.hasOwnProperty.call(value, k)) {
                            v = walk(value, k);
                            if (v !== undefined) {
                                value[k] = v;
                            } else {
                                delete value[k];
                            }
                        }
                    }
                }
                return reviver.call(holder, key, value);
            }


// Parsing happens in four stages. In the first stage, we replace certain
// Unicode characters with escape sequences. JavaScript handles many characters
// incorrectly, either silently deleting them, or treating them as line endings.

            cx.lastIndex = 0;
            if (cx.test(text)) {
                text = text.replace(cx, function (a) {
                    return '\\u' +
                        ('0000' + a.charCodeAt(0).toString(16)).slice(-4);
                });
            }

// In the second stage, we run the text against regular expressions that look
// for non-JSON patterns. We are especially concerned with '()' and 'new'
// because they can cause invocation, and '=' because it can cause mutation.
// But just to be safe, we want to reject all unexpected forms.

// We split the second stage into 4 regexp operations in order to work around
// crippling inefficiencies in IE's and Safari's regexp engines. First we
// replace the JSON backslash pairs with '@' (a non-JSON character). Second, we
// replace all simple value tokens with ']' characters. Third, we delete all
// open brackets that follow a colon or comma or that begin the text. Finally,
// we look to see that the remaining characters are only whitespace or ']' or
// ',' or ':' or '{' or '}'. If that is so, then the text is safe for eval.

            if (/^[\],:{}\s]*$/.
test(text.replace(/\\(?:["\\\/bfnrt]|u[0-9a-fA-F]{4})/g, '@').
replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g, ']').
replace(/(?:^|:|,)(?:\s*\[)+/g, ''))) {

// In the third stage we use the eval function to compile the text into a
// JavaScript structure. The '{' operator is subject to a syntactic ambiguity
// in JavaScript: it can begin a block or an object literal. We wrap the text
// in parens to eliminate the ambiguity.

                j = eval('(' + text + ')');

// In the optional fourth stage, we recursively walk the new structure, passing
// each name/value pair to a reviver function for possible transformation.

                return typeof reviver === 'function' ?
                    walk({'': j}, '') : j;
            }

// If the text is not JSON parseable, then a SyntaxError is thrown.

            throw new SyntaxError('JSON.parse');
        };
    }
}());


/* Added by module "core", file "include/javascript/jquery-1.4.4.min.js" */
/*!
 * jQuery JavaScript Library v1.4.4
 * http://jquery.com/
 *
 * Copyright 2010, John Resig
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * Includes Sizzle.js
 * http://sizzlejs.com/
 * Copyright 2010, The Dojo Foundation
 * Released under the MIT, BSD, and GPL Licenses.
 *
 * Date: Thu Nov 11 19:04:53 2010 -0500
 */
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parseFloat(d.borderTopWidth)||0;o+=parseFloat(d.borderLeftWidth)||0}d=d}if(d.position==="relative"||d.position==="static"){k+=l.offsetTop;o+=l.offsetLeft}if(c.offset.supportsFixedPosition&&d.position==="fixed"){k+=Math.max(h.scrollTop,l.scrollTop);o+=Math.max(h.scrollLeft,l.scrollLeft)}return{top:k,left:o}};c.offset={initialize:function(){var a=t.body,b=t.createElement("div"),d,e,f,h=parseFloat(c.css(a,"marginTop"))||0;c.extend(b.style,{position:"absolute",top:0,left:0,margin:0,border:0,width:"1px",
height:"1px",visibility:"hidden"});b.innerHTML="<div style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;'><div></div></div><table style='position:absolute;top:0;left:0;margin:0;border:5px solid #000;padding:0;width:1px;height:1px;' cellpadding='0' cellspacing='0'><tr><td></td></tr></table>";a.insertBefore(b,a.firstChild);d=b.firstChild;e=d.firstChild;f=d.nextSibling.firstChild.firstChild;this.doesNotAddBorder=e.offsetTop!==5;this.doesAddBorderForTableAndCells=
f.offsetTop===5;e.style.position="fixed";e.style.top="20px";this.supportsFixedPosition=e.offsetTop===20||e.offsetTop===15;e.style.position=e.style.top="";d.style.overflow="hidden";d.style.position="relative";this.subtractsBorderForOverflowNotVisible=e.offsetTop===-5;this.doesNotIncludeMarginInBodyOffset=a.offsetTop!==h;a.removeChild(b);c.offset.initialize=c.noop},bodyOffset:function(a){var b=a.offsetTop,d=a.offsetLeft;c.offset.initialize();if(c.offset.doesNotIncludeMarginInBodyOffset){b+=parseFloat(c.css(a,
"marginTop"))||0;d+=parseFloat(c.css(a,"marginLeft"))||0}return{top:b,left:d}},setOffset:function(a,b,d){var e=c.css(a,"position");if(e==="static")a.style.position="relative";var f=c(a),h=f.offset(),l=c.css(a,"top"),k=c.css(a,"left"),o=e==="absolute"&&c.inArray("auto",[l,k])>-1;e={};var x={};if(o)x=f.position();l=o?x.top:parseInt(l,10)||0;k=o?x.left:parseInt(k,10)||0;if(c.isFunction(b))b=b.call(a,d,h);if(b.top!=null)e.top=b.top-h.top+l;if(b.left!=null)e.left=b.left-h.left+k;"using"in b?b.using.call(a,
e):f.css(e)}};c.fn.extend({position:function(){if(!this[0])return null;var a=this[0],b=this.offsetParent(),d=this.offset(),e=Ia.test(b[0].nodeName)?{top:0,left:0}:b.offset();d.top-=parseFloat(c.css(a,"marginTop"))||0;d.left-=parseFloat(c.css(a,"marginLeft"))||0;e.top+=parseFloat(c.css(b[0],"borderTopWidth"))||0;e.left+=parseFloat(c.css(b[0],"borderLeftWidth"))||0;return{top:d.top-e.top,left:d.left-e.left}},offsetParent:function(){return this.map(function(){for(var a=this.offsetParent||t.body;a&&!Ia.test(a.nodeName)&&
c.css(a,"position")==="static";)a=a.offsetParent;return a})}});c.each(["Left","Top"],function(a,b){var d="scroll"+b;c.fn[d]=function(e){var f=this[0],h;if(!f)return null;if(e!==B)return this.each(function(){if(h=fa(this))h.scrollTo(!a?e:c(h).scrollLeft(),a?e:c(h).scrollTop());else this[d]=e});else return(h=fa(f))?"pageXOffset"in h?h[a?"pageYOffset":"pageXOffset"]:c.support.boxModel&&h.document.documentElement[d]||h.document.body[d]:f[d]}});c.each(["Height","Width"],function(a,b){var d=b.toLowerCase();
c.fn["inner"+b]=function(){return this[0]?parseFloat(c.css(this[0],d,"padding")):null};c.fn["outer"+b]=function(e){return this[0]?parseFloat(c.css(this[0],d,e?"margin":"border")):null};c.fn[d]=function(e){var f=this[0];if(!f)return e==null?null:this;if(c.isFunction(e))return this.each(function(l){var k=c(this);k[d](e.call(this,l,k[d]()))});if(c.isWindow(f))return f.document.compatMode==="CSS1Compat"&&f.document.documentElement["client"+b]||f.document.body["client"+b];else if(f.nodeType===9)return Math.max(f.documentElement["client"+
b],f.body["scroll"+b],f.documentElement["scroll"+b],f.body["offset"+b],f.documentElement["offset"+b]);else if(e===B){f=c.css(f,d);var h=parseFloat(f);return c.isNaN(h)?f:h}else return this.css(d,typeof e==="string"?e:e+"px")}})})(window);


/* Added by module "core", file "include/javascript/jquery.json-1.3.min.js" */

(function($){function toIntegersAtLease(n)
{return n<10?'0'+n:n;}
Date.prototype.toJSON=function(date)
{return this.getUTCFullYear()+'-'+
toIntegersAtLease(this.getUTCMonth())+'-'+
toIntegersAtLease(this.getUTCDate());};var escapeable=/["\\\x00-\x1f\x7f-\x9f]/g;var meta={'\b':'\\b','\t':'\\t','\n':'\\n','\f':'\\f','\r':'\\r','"':'\\"','\\':'\\\\'};$.quoteString=function(string)
{if(escapeable.test(string))
{return'"'+string.replace(escapeable,function(a)
{var c=meta[a];if(typeof c==='string'){return c;}
c=a.charCodeAt();return'\\u00'+Math.floor(c/16).toString(16)+(c%16).toString(16);})+'"';}
return'"'+string+'"';};$.toJSON=function(o,compact)
{var type=typeof(o);if(type=="undefined")
return"undefined";else if(type=="number"||type=="boolean")
return o+"";else if(o===null)
return"null";if(type=="string")
{return $.quoteString(o);}
if(type=="object"&&typeof o.toJSON=="function")
return o.toJSON(compact);if(type!="function"&&typeof(o.length)=="number")
{var ret=[];for(var i=0;i<o.length;i++){ret.push($.toJSON(o[i],compact));}
if(compact)
return"["+ret.join(",")+"]";else
return"["+ret.join(", ")+"]";}
if(type=="function"){throw new TypeError("Unable to convert object of type 'function' to json.");}
var ret=[];for(var k in o){var name;type=typeof(k);if(type=="number")
name='"'+k+'"';else if(type=="string")
name=$.quoteString(k);else
continue;var val=$.toJSON(o[k],compact);if(typeof(val)!="string"){continue;}
if(compact)
ret.push(name+":"+val);else
ret.push(name+": "+val);}
return"{"+ret.join(", ")+"}";};$.compactJSON=function(o)
{return $.toJSON(o,true);};$.evalJSON=function(src)
{return eval("("+src+")");};$.secureEvalJSON=function(src)
{var filtered=src;filtered=filtered.replace(/\\["\\\/bfnrtu]/g,'@');filtered=filtered.replace(/"[^"\\\n\r]*"|true|false|null|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?/g,']');filtered=filtered.replace(/(?:^|:|,)(?:\s*\[)+/g,'');if(/^[\],:{}\s]*$/.test(filtered))
return eval("("+src+")");else
throw new SyntaxError("Error parsing JSON, source is not valid.");};})(jQuery);

/* Added by module "core", file "include/javascript/jquery.bgiframe-2.1.2.min.js" */
/* Copyright (c) 2010 Brandon Aaron (http://brandonaaron.net)
 * Licensed under the MIT License (LICENSE.txt).
 *
 * Version 2.1.2
 */
(function(a){a.fn.bgiframe=(a.browser.msie&&/msie 6\.0/i.test(navigator.userAgent)?function(d){d=a.extend({top:"auto",left:"auto",width:"auto",height:"auto",opacity:true,src:"javascript:false;"},d);var c='<iframe class="bgiframe"frameborder="0"tabindex="-1"src="'+d.src+'"style="display:block;position:absolute;z-index:-1;'+(d.opacity!==false?"filter:Alpha(Opacity='0');":"")+"top:"+(d.top=="auto"?"expression(((parseInt(this.parentNode.currentStyle.borderTopWidth)||0)*-1)+'px')":b(d.top))+";left:"+(d.left=="auto"?"expression(((parseInt(this.parentNode.currentStyle.borderLeftWidth)||0)*-1)+'px')":b(d.left))+";width:"+(d.width=="auto"?"expression(this.parentNode.offsetWidth+'px')":b(d.width))+";height:"+(d.height=="auto"?"expression(this.parentNode.offsetHeight+'px')":b(d.height))+';"/>';return this.each(function(){if(a(this).children("iframe.bgiframe").length===0){this.insertBefore(document.createElement(c),this.firstChild)}})}:function(){return this});a.fn.bgIframe=a.fn.bgiframe;function b(c){return c&&c.constructor===Number?c+"px":c}})(jQuery);

/* Added by module "core", file "include/javascript/phorum-javascript-library.php" */
////////////////////////////////////////////////////////////////////////////////
//                                                                            //
//   Copyright (C) 2010  Phorum Development Team                              //
//   http://www.phorum.org                                                    //
//                                                                            //
//   This program is free software. You can redistribute it and/or modify     //
//   it under the terms of either the current Phorum License (viewable at     //
//   phorum.org) or the Phorum License that was distributed with this file    //
//                                                                            //
//   This program is distributed in the hope that it will be useful,          //
//   but WITHOUT ANY WARRANTY, without even the implied warranty of           //
//   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.                     //
//                                                                            //
//   You should have received a copy of the Phorum License                    //
//   along with this program.                                                 //
//                                                                            //
////////////////////////////////////////////////////////////////////////////////

/**
 * A non-conflicting jQuery library for use by Phorum. This way, our jQuery
 * library will not conflict with existing javascript libraries (e.g. when
 * Phorum is embedded in another application that uses a javascript library
 * or when a module is loaded that also loads a library of its own).
 *
 * @var jQuery
 */
var $PJ = jQuery.noConflict();



/* Added by module "core", file "include/posting/form_objects.js.php" */
// Valid object ids for textarea objects to handle. The first object
// that can be matched will be use as the object to work with.
// This is done to arrange for backward compatibility between
// Phorum versions.
Phorum.textarea_ids = new Array(
    'phorum_textarea',  // Phorum 5.1
    'body',             // Phorum 5.2
    'message'           // PM interface
);

// Valid object ids for subject text field objects to handle.
Phorum.subject_ids = new Array(
    'phorum_subject',   // Phorum 5.1
    'subject'           // Phorum 5.2
);

// Some variables for storing objects that we need globally.
Phorum.textarea_obj = null;
Phorum.subject_obj = null;

// A variable for storing the current selection range of the 
// textarea. Needed for working around an MSIE problem.
Phorum.textarea_range = null;

// ----------------------------------------------------------------------
// Uitilty functions
// ----------------------------------------------------------------------

// Find the Phorum textarea object and return it. In case of
// problems, null will be returned.
Phorum.get_textarea = function()
{
    if (Phorum.textarea_obj != null) {
        return Phorum.textarea_obj;
    }

    for (var i=0; Phorum.textarea_ids[i]; i++) {
        Phorum.textarea_obj =
            document.getElementById(Phorum.textarea_ids[i]);
        if (Phorum.textarea_obj) break;
    }

    if (! Phorum.textarea_obj) {
        alert('No textarea found on the current page.');
        return null;
    }

    return Phorum.textarea_obj;
}

// Find the Phorum subject field object and return it. In case of
// problems, null will be returned.
Phorum.get_subjectfield = function()
{
    if (Phorum.subject_obj != null) {
        return Phorum.subject_obj;
    }

    for (var i=0; Phorum.subject_ids[i]; i++) {
        Phorum.subject_obj =
            document.getElementById(Phorum.subject_ids[i]);
        if (Phorum.subject_obj) break;
    }

    if (! Phorum.subject_obj) {
        return null;
    }

    return Phorum.subject_obj;
}

// Strip whitespace from the start and end of a string.
Phorum.strip_whitespace = function(str, return_stripped)
{
    var strip_pre = '';
    var strip_post = '';

    // Strip whitespace from end of string.
    for (;;) {
        var lastchar = str.substring(str.length-1, str.length);
        if (lastchar == ' '  || lastchar == '\r' ||
            lastchar == '\n' || lastchar == '\t') {
            strip_post = lastchar + strip_post;

            str = str.substring(0, str.length-1);
        } else {
            break;
        }
    }

    // Strip whitespace from start of string.
    for (;;) {
        var firstchar = str.substring(0,1);
        if (firstchar == ' '  || firstchar == '\r' ||
            firstchar == '\n' || firstchar == '\t') {
            strip_pre += firstchar;
            str = str.substring(1);
        } else {
            break;
        }
    }

    if (return_stripped) {
        return new Array(str, strip_pre, strip_post);
    } else {
        return str;
    }
} 

// Save the selection range of the textarea. This is needed because
// sometimes clicking in a popup can clear the selection in MSIE.
Phorum.store_range = function()
{
    var ta = Phorum.get_textarea();
    if (ta == null || ta.setSelectionRange || ! document.selection) return;
    ta.focus();
    Phorum.textarea_range = document.selection.createRange();
}

// Restored a saved textarea selection range.
Phorum.restore_range = function()
{
    if (Phorum.textarea_range != null)
    {
        Phorum.textarea_range.select();
        Phorum.textarea_range = null;
    }
}

// Move the focus to the textarea.
Phorum.focus_textarea = function()
{
    var textarea_obj = Phorum.get_textarea();
    if (textarea_obj == null) return;
    textarea_obj.focus();
}

// Move the focus to the subject field.
Phorum.focus_subjectfield = function()
{
    var subjectfield_obj = Phorum.get_subjectfield();
    if (subjectfield_obj == null) return;

    subjectfield_obj.focus();
}

// ----------------------------------------------------------------------
// Textarea manipulation
// ----------------------------------------------------------------------

// Add tags to the textarea. If some text is selected, then place the
// tags around the selected text. If no text is selected and a prompt_str
// is provided, then prompt the user for the data to place inside
// the tags.
Phorum.add_tags = function(pre, post, target, prompt_str)
{
    var text;
    var pretext;
    var posttext;
    var range;
    var ta = target ? target : Phorum.get_textarea();
    if (ta == null) return;

    // Store the current scroll offset, so we can restore it after
    // adding the tags to its contents.
    var offset = ta.scrollTop;

    if (ta.setSelectionRange)
    {
        // Get the currently selected text.
        pretext = ta.value.substring(0, ta.selectionStart);
        text = ta.value.substring(ta.selectionStart, ta.selectionEnd);
        posttext = ta.value.substring(ta.selectionEnd, ta.value.length);

        // Prompt for input if no text was selected and a prompt is set.
        if (text == '' && prompt_str) {
            text = prompt(prompt_str, '');
            if (text == null) return;
        }

        // Strip whitespace from text selection and move it to the
        // pre- and post.
        var res = Phorum.strip_whitespace(text, true);
        text = res[0];
        pre = res[1] + pre;
        post = post + res[2];

        ta.value = pretext + pre + text + post + posttext;

        // Reselect the selected text.
        var cursorpos1 = pretext.length + pre.length;
        var cursorpos2 = cursorpos1 + text.length;
        ta.setSelectionRange(cursorpos1, cursorpos2);
        ta.focus();
    }
    else if (document.selection) /* MSIE support */
    {
        // Get the currently selected text.
        ta.focus();
        range = document.selection.createRange();

        // Fumbling to work around newline selections at the end of
        // the text selection. MSIE does not include them in the
        // range.text, but it does replace them when setting range.text
        // to a new value :-/
        var virtlen = range.text.length;
        if (virtlen > 0) {
            while (range.text.length == virtlen) {
                range.moveEnd('character', -1);
            }
            range.moveEnd('character', +1);
        }

        // Prompt for input if no text was selected and a prompt is set.
        text = range.text;
        if (text == '' && prompt_str) {
            text = prompt(prompt_str, '');
            if (text == null) return;
        }

        // Strip whitespace from text selection and move it to the
        // pre- and post.
        var res = Phorum.strip_whitespace(text, true);
        text = res[0];
        pre = res[1] + pre;
        post = post + res[2];

        // Add pre and post to the text.
        range.text = pre + text + post;

        // Reselect the selected text. Another MSIE anomaly has to be
        // taken care of here. MSIE will include carriage returns
        // in the text.length, but it does not take them into account
        // when using selection range moving methods :-/
        // By setting the range.text before, the cursor is now after
        // the replaced code, so we will move the start and the end
        // back in the text.
        var mvstart = post.length + text.length -
                      ((text + post).split('\r').length - 1);
        var mvend   = post.length +
                      (post.split('\r').length - 1);
        range.moveStart('character', -mvstart);
        range.moveEnd('character', -mvend);
        range.select();
    }
    else /* Support for really limited browsers, e.g. MSIE5 on MacOS */
    {
        ta.value = ta.value + pre + post;
    }

    ta.scrollTop = offset;
}


/* Added by module "core", file "include/ajax/client.js.php" */
// Setup the Phorum.Ajax namespace if it has not yet been setup.
if (Phorum === undefined) Phorum = {};
if (Phorum.Ajax === undefined) Phorum.Ajax = {};

// The version of this lib
Phorum.Ajax.version = '1.0.0';

// The URL that we use to access the Phorum Ajax layer.
Phorum.Ajax.URL = 'http://www.fairfaxunderground.com/forum/ajax.php';

// Storage for Ajax call return data. This acts as a local cache
// for keeping track of already retrieved items.
Phorum.Ajax.cache = {};

/**
 * Create an XMLHttpRequest object.
 * Used internally by Phorum.Ajax.call().
 * Raise an onFailure event in case no object can be created.
 * Return either an object or null if the object creation failed.
 */
Phorum.Ajax.getXMLHttpRequest = function(req)
{
    var xhr;
    if (window.XMLHttpRequest) {
        xhr = new XMLHttpRequest();
    } else if (window.ActiveXObject) {
        var versions = [
            'MSXML2.XMLHttp.5.0',
            'MSXML2.XMLHttp.4.0',
            'MSXML2.XMLHttp.3.0',
            'MSXML2.XMLHttp',
            'Microsoft.XMLHttp'
        ];
        for (var i=0; i < versions.length; i++) {
            try { xhr = new ActiveXObject(versions[i]); } catch (e) { }
        }
    }

    if (xhr) {
        return xhr;
    }

    if (req.onFailure) req.onFailure(
        'Phorum: Unable to create an XMLHttpRequest object',
        -1, null
    );
    return null;
};

/**
 * Execute an Ajax Phorum call.
 */
Phorum.Ajax.call = function(req)
{
    // If the store property is set for the request, then check
    // if the data for the request is already available in the
    // local cache. If yes, then return the data immediately.
    if (req.store) {
        if (req.store != null && Phorum.Ajax.cache[req.store]) {
            if (req.onSuccess) {
                // true = data retrieved from cache.
                req.onSuccess(Phorum.Ajax.cache[req.store], true);
            }
            return;
        }
    }

    // Check the request data.
    if (! req['call']) {
        if (req.onFailure) req.onFailure(
            'Phorum.Ajax.call() error: missing property ' +
            '"call" for the request object.',
            -1, null
        );
        return;
    }

    // Check if there is an XMLHttpRequest object available.
    var xhr = Phorum.Ajax.getXMLHttpRequest(req);
    if (! xhr) return;

    // Convert the request object to JSON.
    var json = Phorum.JSON.encode(req);

    // Notify the start of the request loading stage.
    if (req.onRequest) req.onRequest(json);

    xhr.open("post", Phorum.Ajax.URL, true);
    xhr.setRequestHeader("Content-Type", "text/x-json");
    xhr.onreadystatechange = function()
    {
      if (req.onReadStateChange) req.onReadyStateChange(req);

      switch (xhr.readyState)
      {
          case 1:

              if (req.onLoading) req.onLoading(xhr);
              break;

          case 2:

              if (req.onLoaded) req.onLoaded(xhr);
              break;

          case 3:

              if (req.onInteractive) req.onInteractive(xhr);
              break;

          case 4:

              if (req.onComplete)req.onComplete(xhr);

              if (req.onResponse) req.onResponse(xhr.responseText);

              if (xhr.status == 200) {

                  // Evaluate the returned JSON code. If evaluation fails,
                  // then run the onFailure event for the Phorum.Ajax.call.
                  try {
                      var res = Phorum.JSON.decode(xhr.responseText);
                  } catch (e) {
                      if (req.onFailure) req.onFailure(
                        'Ajax Phorum API call succeeded, but the return ' +
                        'data could not be parsed as JSON data.',
                        xhr.status, xhr.responseText
                      );
                      return;
                  }

                  // If the req.store property is set, then we store
                  // the result data in the Phorum cache.
                  if (req.store) Phorum.Ajax.cache[req.store] = res;

                  // false = data not retrieved from store.
                  if (req.onSuccess) req.onSuccess(res, false);

              } else {

                  if (req.onFailure) req.onFailure(xhr.responseText);
              }

              break;
      }
    };
    xhr.send(json);
};

// Invalidate a single cache item of the full cache.
Phorum.Ajax.invalidateCache = function(key)
{
    if (key) {
        Phorum.Ajax.cache[key] = null;
    } else {
        Phorum.Ajax.cache = new Array();
    }
};

// Parse out javascript blocks from the data to eval them. Adding them
// to the page using innerHTML does not invoke parsing by the browser.
Phorum.Ajax.evalJavaScript = function(data)
{
    var cursor = 0;
    var start  = 1;
    var end    = 1;

    while (cursor < data.length && start > 0 && end > 0) {
        start = data.indexOf('<script', cursor);
        end   = data.indexOf('</script', cursor);
        if (end > start && end > -1) {
            if (start > -1) {
                var res = data.substring(start, end);
                start = res.indexOf('>') + 1;
                res = res.substring(start);
                if (res.length != 0) {
                    eval(res);
                }
            }
            cursor = end + 1;
        }
    }
};

// ======================================================================
// JSON encoder and decoder
// Based on byteson by Andrea Giammarchi
// (http://www.devpro.it/byteson/)
// ======================================================================

Phorum.JSON = {};

Phorum.JSON.common =
{
  // characters object, useful to convert some char in a JSON compatible way
  c:{'\b':'b','\t':'t','\n':'n','\f':'f','\r':'r','"':'"','\\':'\\','/':'/'},

  // decimal function, returns a string with length === 2 for date convertion
  d:function(n){return n < 10 ? '0'.concat(n) : n},

  // integer function, returns integer value from a piece of string
  i:function(e, p, l){return parseInt(e.substr(p, l))},

  // slash function, add a slash before a common.c char
  s:function(i,d){return '\\'.concat(Phorum.JSON.common.c[d])},

  // unicode function, return respective unicode string
  u:function(i,d){var n = d.charCodeAt(0).toString(16);return '\\u'.concat(n.length < 2 ? '000' : '00', n)}
};

Phorum.JSON.convert = function(params, result)
{
    switch(params.constructor) {
        case Number:
            result = isFinite(params) ? String(params) : 'null';
            break;
        case Boolean:
            result = String(params);
            break;
        case Date:
            result = concat(
                '"',
                params.getFullYear(), '-',
                Phorum.JSON.common.d(params.getMonth() + 1), '-',
                Phorum.JSON.common.d(params.getDate()), 'T',
                Phorum.JSON.common.d(params.getHours()), ':',
                Phorum.JSON.common.d(params.getMinutes()), ':',
                Phorum.JSON.common.d(params.getSeconds()),
                '"'
            );
            break;
        case String:
            if(/^[0-9]{4}\-[0-9]{2}\-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}$/.test(params)){
                result = new Date;
                result.setHours(Phorum.JSON.common.i(params, 11, 2));
                result.setMinutes(Phorum.JSON.common.i(params, 14, 2));
                result.setSeconds(Phorum.JSON.common.i(params, 17, 2));
                result.setMonth(Phorum.JSON.common.i(params, 5, 2) - 1);
                result.setDate(Phorum.JSON.common.i(params, 9, 2));
                result.setFullYear(Phorum.JSON.common.i(params, 0, 4));
            };
            break;
        default:
            var n, tmp = [];
            if(result) {
                for(n in params) result[n] = params[n];
            } else {
                for(n in params) {
                    if(params.hasOwnProperty(n) && !!(result = Phorum.JSON.encode(params[n])))
                        tmp.push(Phorum.JSON.encode(n).concat(':', result));
                };
                result = '{'.concat(tmp.join(','), '}');
            };
            break;
    };
    return result;
};

Phorum.JSON.encode = function(params)
{
    var result = '';

    if(params === null)
    {
        result = 'null';
    }
    else if(!{'function':1,'undefined':1,'unknown':1}[typeof(params)])
    {
        switch(params.constructor)
        {
            case Array:
                for(var i = 0, j = params.length, tmp = []; i < j; i++) {
                    if(!!(result = Phorum.JSON.encode(params[i])))
                        tmp.push(result);
                };
                result = '['.concat(tmp.join(','), ']');
                break;

            case String:
                result = '"'.concat(params.replace(
                        /(\x5c|\x2F|\x22|[\x0c-\x0d]|[\x08-\x0a])/g, Phorum.JSON.common.s
                    ).replace(
                        /([\x00-\x07]|\x0b|[\x0e-\x1f])/g, Phorum.JSON.common.u
                    ), '"');
                break;

            default:
                result = Phorum.JSON.convert(params);
                break;
        };
    };
    return result;
};

Phorum.JSON.decode = function(json)
{
    var res = JSON.parse(json);
    if (res === undefined) {
        throw new SyntaxError('The Phorum JSON data cannot be parsed');
    }
    return res;
};