// #############################################################################
// Initial setup

// ensure vbphrase exists
if (typeof(vbphrase) == "undefined")
{
	var vbphrase = new Array();
}

// Array of message editor objects
var vB_Editor = new Array();

// Ignore characters within [quote] tags in messages for length check
var ignorequotechars = false;

// Number of pagenav items dealt with so far
var pagenavcounter = 0;

// #############################################################################
// Browser detection and limitation workarounds

// Define the browser we have instead of multiple calls throughout the file
var userAgent = navigator.userAgent.toLowerCase();
var is_opera  = ((userAgent.indexOf('opera') != -1) || (typeof(window.opera) != 'undefined'));
var is_saf    = ((userAgent.indexOf('applewebkit') != -1) || (navigator.vendor == 'Apple Computer, Inc.'));
var is_webtv  = (userAgent.indexOf('webtv') != -1);
var is_ie     = ((userAgent.indexOf('msie') != -1) && (!is_opera) && (!is_saf) && (!is_webtv));
var is_ie4    = ((is_ie) && (userAgent.indexOf('msie 4.') != -1));
var is_ie7    = ((is_ie) && (userAgent.indexOf('msie 7.') != -1));
var is_moz    = ((navigator.product == 'Gecko') && (!is_saf));
var is_kon    = (userAgent.indexOf('konqueror') != -1);
var is_ns     = ((userAgent.indexOf('compatible') == -1) && (userAgent.indexOf('mozilla') != -1) && (!is_opera) && (!is_webtv) && (!is_saf));
var is_ns4    = ((is_ns) && (parseInt(navigator.appVersion) == 4));
var is_mac    = (userAgent.indexOf('mac') != -1);

// Catch possible bugs with WebTV and other older browsers
var is_regexp = (window.RegExp) ? true : false;

// Is the visiting browser compatible with AJAX?
var AJAX_Compatible = false;

// Help out old versions of IE that don't understand element.style.cursor = 'pointer'
var pointer_cursor = (is_ie ? 'hand' : 'pointer');

/**
* Workaround for heinous IE bug - add special vBlength property to all strings
* This method is applied to ALL string objects automatically
*
* @return	integer
*/
String.prototype.vBlength = function()
{
	return (is_ie && this.indexOf('\n') != -1) ? this.replace(/\r?\n/g, '_').length : this.length;
}

if ('1234'.substr(-2, 2) == '12') // (which would be incorrect)
{
	String.prototype.substr_orig = String.prototype.substr;

	/**
	* Overrides IE's original String.prototype.substr to accept negative values
	*
	* @param	integer	Substring start position
	* @param	integer	Substring length
	*
	* @return	string
	*/
	String.prototype.substr = function(start, length)
	{
		return this.substr_orig( (start < 0 ? this.length + start : start), length);
	};
}

/**
* Pop function for browsers that don't have it built in
*
* @param	array	Array from which to pop
*
* @return	mixed	null on empty, value on success
*/
function array_pop(a)
{
	if (typeof a != 'object' || !a.length)
	{
		return null;
	}
	else
	{
		var response = a[a.length - 1];
		a.length--;
		return response;
	}
}

if (typeof Array.prototype.shift === 'undefined')
{
	Array.prototype.shift = function()
	{
		for(var i = 0, b = this[0], l = this.length-1; i < l; i++)
		{
			this[i] = this[i + 1];
		}
		this.length--;
		return b;
	};
}

/**
* Push function for browsers that don't have it built in
*
* @param	array	Array onto which to push
* @param	mixed	Value(s) to push onto - you may use multiple arguments here, eg: array_push(myArray, 1, 2, 3, 4, ...)
*
* @return	integer	Length of array
*/
function array_push(a, values)
{
	for (var i = 1; i < arguments.length; i++)
	{
		a[a.length] = arguments[i];
	}
	return a.length;
}

/**
* Function to emulate document.getElementById
*
* @param	string	Object ID
*
* @return	mixed	null if not found, object if found
*/
function fetch_object(idname)
{
	if (document.getElementById)
	{
		return document.getElementById(idname);
	}
	else if (document.all)
	{
		return document.all[idname];
	}
	else if (document.layers)
	{
		return document.layers[idname];
	}
	else
	{
		return null;
	}
}

/**
* Fetches the contents of an XML node
*
* @param	object	XML node
*
* @return	string	XML node contents
*/
function fetch_xmldata(xml_node)
{
	if (xml_node && xml_node.firstChild && xml_node.firstChild.nodeValue)
	{
		return PHP.unescape_cdata(xml_node.firstChild.nodeValue);
	}
	else
	{
		return '';
	}
}

/**
* Function to emulate document.getElementsByTagName
*
* @param	object	Parent object (eg: document)
* @param	string	Tag type (eg: 'td')
*
* @return	array
*/
function fetch_tags(parentobj, tag)
{
	if (parentobj == null)
	{
		return new Array();
	}
	else if (typeof parentobj.getElementsByTagName != 'undefined')
	{
		return parentobj.getElementsByTagName(tag);
	}
	else if (parentobj.all && parentobj.all.tags)
	{
		return parentobj.all.tags(tag);
	}
	else
	{
		return new Array();
	}
}

/**
* Function to count the number of tags in an object
*
* @param	object	Parent object (eg: document)
* @param	string	Tag type (eg: 'td')
*
* @return	integer
*/
function fetch_tag_count(parentobj, tag)
{
	return fetch_tags(parentobj, tag).length;
}

// #############################################################################
// Event handlers

/**
* Handles the different event models of different browsers and prevents event bubbling
*
* @param	event	Event object
*
* @return	event
*/
function do_an_e(eventobj)
{
	if (!eventobj || is_ie)
	{
		window.event.returnValue = false;
		window.event.cancelBubble = true;
		return window.event;
	}
	else
	{
		eventobj.stopPropagation();
		eventobj.preventDefault();
		return eventobj;
	}
}

/**
* Handles the different event models of different browsers and prevents event bubbling in a lesser way than do_an_e()
*
* @param	event	Event object
*
* @return	event
*/
function e_by_gum(eventobj)
{
	if (!eventobj || is_ie)
	{
		window.event.cancelBubble = true;
		return window.event;
	}
	else
	{
		if (eventobj.target.type == 'submit')
		{
			// naughty safari
			eventobj.target.form.submit();
		}
		eventobj.stopPropagation();
		return eventobj;
	}
}

// #############################################################################
// vB_PHP_Emulator class
// #############################################################################

/**
* PHP Function Emulator Class
*/
function vB_PHP_Emulator()
{
}

// =============================================================================
// vB_PHP_Emulator Methods

/**
* Find a string within a string (case insensitive)
*
* @param	string	Haystack
* @param	string	Needle
* @param	integer	Offset
*
* @return	mixed	Not found: false / Found: integer position
*/
vB_PHP_Emulator.prototype.stripos = function(haystack, needle, offset)
{
	if (typeof offset == 'undefined')
	{
		offset = 0;
	}

	index = haystack.toLowerCase().indexOf(needle.toLowerCase(), offset);

	return (index == -1 ? false : index);
}

/**
* Trims leading whitespace
*
* @param	string	String to trim
*
* @return	string
*/
vB_PHP_Emulator.prototype.ltrim = function(str)
{
	return str.replace(/^\s+/g, '');
}

/**
* Trims trailing whitespace
*
* @param	string	String to trim
*
* @return	string
*/
vB_PHP_Emulator.prototype.rtrim = function(str)
{
	return str.replace(/(\s+)$/g, '');
}

/**
* Trims leading and trailing whitespace
*
* @param	string	String to trim
*
* @return	string
*/
vB_PHP_Emulator.prototype.trim = function(str)
{
	return this.ltrim(this.rtrim(str));
}

/**
* Emulation of PHP's preg_quote()
*
* @param	string	String to process
*
* @return	string
*/
vB_PHP_Emulator.prototype.preg_quote = function(str)
{
	// replace + { } ( ) [ ] | / ? ^ $ \ . = ! < > : * with backslash+character
	return str.replace(/(\+|\{|\}|\(|\)|\[|\]|\||\/|\?|\^|\$|\\|\.|\=|\!|\<|\>|\:|\*)/g, "\\$1");
}

/**
* Emulates PHP's preg_match_all()... sort of
*
* @param	string	Haystack
* @param	string	Regular expression - to be inserted into RegExp(x)
*
* @return	mixed	Array on match, false on no match
*/
vB_PHP_Emulator.prototype.match_all = function(string, regex)
{
	var gmatch = string.match(RegExp(regex, "gim"));
	if (gmatch)
	{
		var matches = new Array();

		var iregex = new RegExp(regex, "im");
		for (var i = 0; i < gmatch.length; i++)
		{
			matches[matches.length] = gmatch[i].match(iregex);
		}

		return matches;
	}
	else
	{
		return false;
	}
}

/**
* Emulates unhtmlspecialchars in vBulletin
*
* @param	string	String to process
*
* @return	string
*/
vB_PHP_Emulator.prototype.unhtmlspecialchars = function(str)
{
	f = new Array(/&lt;/g, /&gt;/g, /&quot;/g, /&amp;/g);
	r = new Array('<', '>', '"', '&');

	for (var i in f)
	{
		str = str.replace(f[i], r[i]);
	}

	return str;
}

/**
* Unescape CDATA from vB_AJAX_XML_Builder PHP class
*
* @param	string	Escaped CDATA
*
* @return	string
*/
vB_PHP_Emulator.prototype.unescape_cdata = function(str)
{
	var r1 = /<\=\!\=\[\=C\=D\=A\=T\=A\=\[/g;
	var r2 = /\]\=\]\=>/g;

	return str.replace(r1, '<![CDATA[').replace(r2, ']]>');
}

/**
* Emulates PHP's htmlspecialchars()
*
* @param	string	String to process
*
* @return	string
*/
vB_PHP_Emulator.prototype.htmlspecialchars = function(str)
{
	//var f = new Array(/&(?!#[0-9]+;)/g, /</g, />/g, /"/g);
	var f = new Array(
		(is_mac && is_ie ? new RegExp('&', 'g') : new RegExp('&(?!#[0-9]+;)', 'g')),
		new RegExp('<', 'g'),
		new RegExp('>', 'g'),
		new RegExp('"', 'g')
	);
	var r = new Array(
		'&amp;',
		'&lt;',
		'&gt;',
		'&quot;'
	);

	for (var i = 0; i < f.length; i++)
	{
		str = str.replace(f[i], r[i]);
	}

	return str;
}

/**
* Searches an array for a value
*
* @param	string	Needle
* @param	array	Haystack
* @param	boolean	Case insensitive
*
* @return	integer	Not found: -1 / Found: integer index
*/
vB_PHP_Emulator.prototype.in_array = function(ineedle, haystack, caseinsensitive)
{
	var needle = new String(ineedle);

	if (caseinsensitive)
	{
		needle = needle.toLowerCase();
		for (var i in haystack)
		{
			if (haystack[i].toLowerCase() == needle)
			{
				return i;
			}
		}
	}
	else
	{
		for (var i in haystack)
		{
			if (haystack[i] == needle)
			{
				return i;
			}
		}
	}
	return -1;
}

/**
* Emulates PHP's strpad()
*
* @param	string	Text to pad
* @param	integer	Length to pad
* @param	string	String with which to pad
*
* @return	string
*/
vB_PHP_Emulator.prototype.str_pad = function(text, length, padstring)
{
	text = new String(text);
	padstring = new String(padstring);

	if (text.length < length)
	{
		padtext = new String(padstring);

		while (padtext.length < (length - text.length))
		{
			padtext += padstring;
		}

		text = padtext.substr(0, (length - text.length)) + text;
	}

	return text;
}

/**
* A sort of emulation of PHP's urlencode - not 100% the same, but accomplishes the same thing
*
* @param	string	String to encode
*
* @return	string
*/
vB_PHP_Emulator.prototype.urlencode = function(text)
{
	text = escape(text.toString()).replace(/\+/g, "%2B");

	// this escapes 128 - 255, as JS uses the unicode code points for them.
	// This causes problems with submitting text via AJAX with the UTF-8 charset.
	var matches = text.match(/(%([0-9A-F]{2}))/gi);
	if (matches)
	{
		for (var matchid = 0; matchid < matches.length; matchid++)
		{
			var code = matches[matchid].substring(1,3);
			if (parseInt(code, 16) >= 128)
			{
				text = text.replace(matches[matchid], '%u00' + code);
			}
		}
	}

	// %25 gets translated to % by PHP, so if you have %25u1234,
	// we see it as %u1234 and it gets translated. So make it %u0025u1234,
	// which will print as %u1234!
	text = text.replace('%25', '%u0025');

	return text;
}

/**
* Works a bit like ucfirst, but with some extra options
*
* @param	string	String with which to work
* @param	string	Cut off string before first occurence of this string
*
* @return	string
*/
vB_PHP_Emulator.prototype.ucfirst = function(str, cutoff)
{
	if (typeof cutoff != 'undefined')
	{
		var cutpos = str.indexOf(cutoff);
		if (cutpos > 0)
		{
			str = str.substr(0, cutpos);
		}
	}

	str = str.split(' ');
	for (var i = 0; i < str.length; i++)
	{
		str[i] = str[i].substr(0, 1).toUpperCase() + str[i].substr(1);
	}
	return str.join(' ');
}

// initialize the PHP emulator
var PHP = new vB_PHP_Emulator();

// #############################################################################
// vB_AJAX_Handler
// #############################################################################

/**
* XML Sender Class
*
* @param	boolean	Should connections be asyncronous?
*/
function vB_AJAX_Handler(async)
{
	/**
	* Should connections be asynchronous?
	*
	* @var	boolean
	*/
	this.async = async ? true : false;
}

// =============================================================================
// vB_AJAX_Handler methods

/**
* Initializes the XML handler
*
* @return	boolean	True if handler created OK
*/
vB_AJAX_Handler.prototype.init = function()
{
	if (typeof vB_disable_ajax != 'undefined' && vB_disable_ajax == 2)
	{
		// disable all ajax features
		return false;
	}

	try
	{
		this.handler = new XMLHttpRequest();
		return (this.handler.setRequestHeader ? true : false);
	}
	catch(e)
	{
		try
		{
			this.handler = new ActiveXObject('Microsoft.XMLHTTP');
			return true;
		}
		catch(e)
		{
			return false;
		}
	}
}

/**
* Detects if the browser is fully compatible
*
* @return	boolean
*/
vB_AJAX_Handler.prototype.is_compatible = function()
{
	if (typeof vB_disable_ajax != 'undefined' && vB_disable_ajax == 2)
	{
		// disable all ajax features
		return false;
	}

	if (is_ie && !is_ie4) { return true; }
	else if (typeof XMLHttpRequest != 'undefined')
	{
		try { return XMLHttpRequest.prototype.setRequestHeader ? true : false; }
		catch(e)
		{
			try { var tester = new XMLHttpRequest(); return tester.setRequestHeader ? true : false; }
			catch(e) { return false; }
		}
	}
	else { return false; }
}

/**
* Checks if the system is ready
*
* @return	boolean	False if ready
*/
vB_AJAX_Handler.prototype.not_ready = function()
{
	return (this.handler.readyState && (this.handler.readyState < 4));
}

/**
* OnReadyStateChange event handler
*
* @param	function
*/
vB_AJAX_Handler.prototype.onreadystatechange = function(event)
{
	if (!this.handler)
	{
		if  (!this.init())
		{
			return false;
		}
	}
	if (typeof event == 'function')
	{
		this.handler.onreadystatechange = event;
	}
	else
	{
		alert('XML Sender OnReadyState event is not a function');
	}

	return false;
}

/**
* Sends data
*
* @param	string	Destination URL
* @param	string	Request Data
*
* @return	mixed	Return message
*/
vB_AJAX_Handler.prototype.send = function(desturl, datastream)
{
	if (!this.handler)
	{
		if (!this.init())
		{
			return false;
		}
	}
	if (!this.not_ready())
	{
		this.handler.open('POST', desturl, this.async);
		this.handler.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
		this.handler.send(datastream);

		if (!this.async && this.handler.readyState == 4 && this.handler.status == 200)
		{
			return true;
		}
	}
	return false;
}

/**
* Fetches the contents of an XML node
*
* @param	object	XML node
*
* @return	string	XML node contents
*/
vB_AJAX_Handler.prototype.fetch_data = function(xml_node)
{
	if (xml_node && xml_node.firstChild && xml_node.firstChild.nodeValue)
	{
		return PHP.unescape_cdata(xml_node.firstChild.nodeValue);
	}
	else
	{
		return '';
	}
}

// we can check this variable to see if browser is AJAX compatible
var AJAX_Compatible = vB_AJAX_Handler.prototype.is_compatible();


// #############################################################################
// Cookie handlers

/**
* Sets a cookie
*
* @param	string	Cookie name
* @param	string	Cookie value
* @param	date	Cookie expiry date
*/
function set_cookie(name, value, expires)
{
	document.cookie = name + '=' + escape(value) + '; path=/' + (typeof expires != 'undefined' ? '; expires=' + expires.toGMTString() : '');
}

/**
* Deletes a cookie
*
* @param	string	Cookie name
*/
function delete_cookie(name)
{
	document.cookie = name + '=' + '; expires=Thu, 01-Jan-70 00:00:01 GMT' +  '; path=/';
}

/**
* Fetches the value of a cookie
*
* @param	string	Cookie name
*
* @return	string
*/
function fetch_cookie(name)
{
	cookie_name = name + '=';
	cookie_length = document.cookie.length;
	cookie_begin = 0;
	while (cookie_begin < cookie_length)
	{
		value_begin = cookie_begin + cookie_name.length;
		if (document.cookie.substring(cookie_begin, value_begin) == cookie_name)
		{
			var value_end = document.cookie.indexOf (';', value_begin);
			if (value_end == -1)
			{
				value_end = cookie_length;
			}
			return unescape(document.cookie.substring(value_begin, value_end));
		}
		cookie_begin = document.cookie.indexOf(' ', cookie_begin) + 1;
		if (cookie_begin == 0)
		{
			break;
		}
	}
	return null;
}

// #############################################################################
// Form element managers (used for 'check all' type systems)

/**
* Sets all checkboxes, radio buttons or selects in a given form to a given state, with exceptions
*
* @param	object	Form object
* @param	string	Target element type (one of 'radio', 'select-one', 'checkbox')
* @param	string	Selected option in case of 'radio'
* @param	array	Array of element names to be excluded
* @param	mixed	Value to give to found elements
*/
function js_toggle_all(formobj, formtype, option, exclude, setto)
{
	for (var i =0; i < formobj.elements.length; i++)
	{
		var elm = formobj.elements[i];
		if (elm.type == formtype && PHP.in_array(elm.name, exclude, false) == -1)
		{
			switch (formtype)
			{
				case 'radio':
					if (elm.value == option) // option == '' evaluates true when option = 0
					{
						elm.checked = setto;
					}
				break;
				case 'select-one':
					elm.selectedIndex = setto;
				break;
				default:
					elm.checked = setto;
				break;
			}
		}
	}
}

/**
* Sets all <select> elements to the selectedIndex specified by the 'selectall' element
*
* @param	object	Form object
*/
function js_select_all(formobj)
{
	exclude = new Array();
	exclude[0] = 'selectall';
	js_toggle_all(formobj, 'select-one', '', exclude, formobj.selectall.selectedIndex);
}

/**
* Sets all <input type="checkbox" /> elements to have the same checked status as 'allbox'
*
* @param	object	Form object
*/
function js_check_all(formobj)
{
	exclude = new Array();
	exclude[0] = 'keepattachments';
	exclude[1] = 'allbox';
	exclude[2] = 'removeall';
	js_toggle_all(formobj, 'checkbox', '', exclude, formobj.allbox.checked);
}

/**
* Sets all <input type="radio" /> groups to have a particular option checked
*
* @param	object	Form object
* @param	mixed	Selected option
*/
function js_check_all_option(formobj, option)
{
	exclude = new Array();
	exclude[0] = 'useusergroup';
	js_toggle_all(formobj, 'radio', option, exclude, true);
}

/**
* Alias to js_check_all
*/
function checkall(formobj) { js_check_all(formobj); }

/**
* Alias to js_check_all_option
*/
function checkall_option(formobj, option) { js_check_all_option(formobj, option); }

/**
* Resize function for CP textareas
*
* @param	integer	If positive, size up, otherwise size down
* @param	string	ID of the textarea
*
* @return	boolean	false
*/
function resize_textarea(to, id)
{
	if (to < 0)
	{
		var rows = -5;
		var cols = -10;
	}
	else
	{
		var rows = 5;
		var cols = 10;
	}

	var textarea = fetch_object(id);
	if (typeof textarea.orig_rows == 'undefined')
	{
		textarea.orig_rows = textarea.rows;
		textarea.orig_cols = textarea.cols;
	}

	var newrows = textarea.rows + rows;
	var newcols = textarea.cols + cols;

	if (newrows >= textarea.orig_rows && newcols >= textarea.orig_cols)
	{
		textarea.rows = newrows;
		textarea.cols = newcols;
	}

	return false;
}

// #############################################################################
// Collapsible element handlers

/**
* Toggles the collapse state of an object, and saves state to 'vbulletin_collapse' cookie
*
* @param	string	Unique ID for the collapse group
*
* @return	boolean	false
*/
function toggle_collapse(objid)
{
	if (!is_regexp)
	{
		return false;
	}

	obj = fetch_object('collapseobj_' + objid);
	img = fetch_object('collapseimg_' + objid);

	if (!obj)
	{
		// nothing to collapse!
		if (img)
		{
			// hide the clicky image if there is one
			img.style.display = 'none';
		}
		return false;
	}

	if (obj.style.display == 'none')
	{
		obj.style.display = '';
		save_collapsed(objid, false);
		if (img)
		{
			img_re = new RegExp("_collapsed\\.gif$");
			img.src = img.src.replace(img_re, '.gif');
		}
	}
	else
	{
		obj.style.display = 'none';
		save_collapsed(objid, true);
		if (img)
		{
			img_re = new RegExp("\\.gif$");
			img.src = img.src.replace(img_re, '_collapsed.gif');
		}
	}
	return false;
}

/**
* Updates vbulletin_collapse cookie with collapse preferences
*
* @param	string	Unique ID for the collapse group
* @param	boolean	Add a cookie
*/
function save_collapsed(objid, addcollapsed)
{
	if (true)
	{
		return true;
	}

	var collapsed = fetch_cookie('vbulletin_collapse');
	var tmp = new Array();

	if (collapsed != null)
	{
		collapsed = collapsed.split('\n');

		for (var i in collapsed)
		{
			if (collapsed[i] != objid && collapsed[i] != '')
			{
				tmp[tmp.length] = collapsed[i];
			}
		}
	}

	if (addcollapsed)
	{
		tmp[tmp.length] = objid;
	}

	expires = new Date();
	expires.setTime(expires.getTime() + (1000 * 86400 * 365));
	set_cookie('vbulletin_collapse', tmp.join('\n'), expires);
}


// #############################################################################
// deal with Firebug console calls
if (!console)
{
	var console = function() { var moo = 1 + 1; };
	console.log = function(str) { var moo = 1 + 1; };
}