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Author Topic: Character corruption upon inline edit after 2.0.16 update  (Read 3706 times)

Offline spiros

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Character corruption upon inline edit after 2.0.16 update
« on: December 31, 2019, 06:13:55 AM »
When using inline edit on topic level, I get non-ASCII character conversion in subject and body text to Unicode Character Names. It happens with all tested themes. It also happens in a vanilla forum just after installing 2.0.16

https://www.translatum.gr/forum/index.php
« Last Edit: December 31, 2019, 06:56:34 AM by spiros »

Offline bulatus

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #1 on: January 02, 2020, 02:58:22 AM »
Hello everyone!!!
I confirm that after updating to 2.0.17 there was a problem with encoding. utf8
How do I disable this feature?

Offline spiros

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #2 on: January 02, 2020, 05:26:37 AM »
I had to remove the inline edit button in the theme template.

Offline bulatus

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #3 on: January 02, 2020, 05:32:11 AM »
Hi!!! How did you delete this button? In what file and what line???

Offline spiros

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #4 on: January 02, 2020, 05:36:58 AM »
Depends on your theme. For example in default theme, Display.template.php, remove this

Code: [Select]
// Can the user modify the contents of this post?  Show the modify inline image.
if ($message['can_modify'])
echo '
<img src="', $settings['images_url'], '/icons/modify_inline.gif" alt="', $txt['modify_msg'], '" title="', $txt['modify_msg'], '" class="modifybutton" id="modify_button_', $message['id'], '" style="cursor: ', ($context['browser']['is_ie5'] || $context['browser']['is_ie5.5'] ? 'hand' : 'pointer'), '; display: none;" onclick="oQuickModify.modifyMsg(\'', $message['id'], '\')" />';

Offline Erros

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #5 on: January 02, 2020, 08:02:56 PM »
I had to remove the inline edit button in the theme template.
Just leave script.js from 2.0.15 version. For me after that inline edit works well again.

Offline shawnb61

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #6 on: January 02, 2020, 09:13:36 PM »
Just leave script.js from 2.0.15 version. For me after that inline edit works well again.

Pretty sure that will re-introduce two separate bugs - the multi-byte preview problem, and the Firefox code select bug. 
Address the process rather than the outcome.  Then, the outcome becomes more likely.   - Fripp

Offline Vanomas

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #7 on: January 03, 2020, 10:16:27 AM »
Pretty sure that will re-introduce two separate bugs - the multi-byte preview problem, and the Firefox code select bug.
I can't confirm it has returned, but I think it's much lesser evil than destructive consequences of that unpleasant behavior for Cyrillic world.

Offline spiros

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #8 on: January 03, 2020, 11:20:33 AM »
Absolutely.
It is difficult for someone who runs Latin-character-based forums to appreciate the destructiveness of this bug  :)

Offline shawnb61

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #9 on: January 03, 2020, 12:37:33 PM »
Understood.  Just sharing the tradeoffs. 
Address the process rather than the outcome.  Then, the outcome becomes more likely.   - Fripp

Offline delysid

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #10 on: January 04, 2020, 05:09:31 PM »
Just leave script.js from 2.0.15 version. For me after that inline edit works well again.

Pretty sure that will re-introduce two separate bugs - the multi-byte preview problem, and the Firefox code select bug.

What errors do you write about if users edit their posts and this will kill all the forums?
It is like a terrorist attack.

Offline spiros

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #11 on: January 05, 2020, 02:54:21 AM »
Indeed, pretty minor (and not affecting the text output) compared to this.

Offline delysid

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #12 on: January 06, 2020, 09:27:33 AM »
In my forum https://wotcheats.ru [nofollow] (Russian lang) this FIX work very well.
Change script.js
Code: [Select]
// Convert a string to an 8 bit representation (like in PHP).
String.prototype.php_to8bit = function ()
{
if (smf_charset == 'UTF-8')
{
return this;
}
















else if (this.oCharsetConversion.from.length == 0)


TO

Code: [Select]
// Convert a string to an 8 bit representation (like in PHP).
String.prototype.php_to8bit = function ()
{
if (smf_charset == 'UTF-8')
{
var n, sReturn = '';

for (var i = 0, iTextLen = this.length; i < iTextLen; i++)
{
n = this.charCodeAt(i);
if (n < 128)
sReturn += String.fromCharCode(n)
else if (n < 2048)
sReturn += String.fromCharCode(192 | n >> 6) + String.fromCharCode(128 | n & 63);
else if (n < 65536)
sReturn += String.fromCharCode(224 | n >> 12) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
else
sReturn += String.fromCharCode(240 | n >> 18) + String.fromCharCode(128 | n >> 12 & 63) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
}

return sReturn;

}
else if (this.oCharsetConversion.from.length == 0)


Offline shawnb61

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #13 on: January 07, 2020, 01:03:52 AM »
This issue is tracked in the internal log as #123/PR#124 & will target 2.0.18.

Any changes you make must be reversed before you apply 2.0.18. 

The changes I would recommend to script.js are:

Find this:
Code: [Select]
if (smf_charset == 'UTF-8')
{
return this;
}

Replace with:
Code: [Select]
if (smf_charset == 'UTF-8')
{
var n, sReturn = '';

// Recode from UTF16 (native .js) to UTF8
for (var i = 0, iTextLen = this.length; i < iTextLen; i++)
{
// Below xFFFF, UTF16 simply = the code points
n = this.charCodeAt(i);
if (n < 128)
sReturn += String.fromCharCode(n);
else if (n < 2048)
sReturn += String.fromCharCode(192 | n >> 6) + String.fromCharCode(128 | n & 63);
// 0xD800 - 0xDBFF
else if (n >= 55296 && n <= 56319)
{
// In this range, this is the beginning of a surrogate pair, where 4-byte utf8 chars are
n = 65536 + ((n & 1023) << 10) + (this.charCodeAt(i + 1) & 1023);
sReturn += String.fromCharCode(240 | n >> 18) + String.fromCharCode(128 | n >> 12 & 63) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
// Skip next char, already used...
i++;
}
else
sReturn += String.fromCharCode(224 | n >> 12) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
}

return sReturn;
}

And also find this:
Code: [Select]
String.prototype.php_urlencode = function()
{
if (smf_charset == 'UTF-8')
return encodeURIComponent(this);

return escape(this).replace(/\+/g, '%2b').replace('*', '%2a').replace('/', '%2f').replace('@', '%40');
}

Replace with:
Code: [Select]
String.prototype.php_urlencode = function()
{
return escape(this).replace(/\+/g, '%2b').replace('*', '%2a').replace('/', '%2f').replace('@', '%40');
}

I believe this will address all of the issues.
« Last Edit: February 19, 2020, 10:13:13 PM by shawnb61 »
Address the process rather than the outcome.  Then, the outcome becomes more likely.   - Fripp

Offline delysid

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #14 on: January 07, 2020, 03:31:08 AM »
I believe this will address all of the issues.
Checked. All is well. Thanks

Online Hatshepsut

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #15 on: January 16, 2020, 02:13:02 AM »
This fix doesn't work for me :(
I am using Bulgarian language (Bulgarian UTF-8 language pack). I have removed 'Modify' button from post body and problem disappeared.

Forum details:

Forum version: SMF 2.0.17 (more detailed)
Current SMF version: SMF 2.0.17
GD version: bundled (2.1.0 compatible)
Database Server: MariaDB
MySQL version: 10.3.21-MariaDB-log
PHP: 5.4.45
Server version: Apache

Offline spiros

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #16 on: January 16, 2020, 03:12:43 AM »
I would recommend updating php.

Offline ziskar364

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #17 on: March 25, 2020, 01:25:27 PM »
Any update on this topic? I have the same issue using quick edit and shoutbox on my greek forum as well!

Offline Kindred

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #18 on: March 25, 2020, 02:37:54 PM »
This issue is tracked in the internal log as #123/PR#124 & will target 2.0.18.

Any changes you make must be reversed before you apply 2.0.18. 

The changes I would recommend to script.js are:

Find this:
Code: [Select]
if (smf_charset == 'UTF-8')
{
return this;
}

Replace with:
Code: [Select]
if (smf_charset == 'UTF-8')
{
var n, sReturn = '';

// Recode from UTF16 (native .js) to UTF8
for (var i = 0, iTextLen = this.length; i < iTextLen; i++)
{
// Below xFFFF, UTF16 simply = the code points
n = this.charCodeAt(i);
if (n < 128)
sReturn += String.fromCharCode(n);
else if (n < 2048)
sReturn += String.fromCharCode(192 | n >> 6) + String.fromCharCode(128 | n & 63);
// 0xD800 - 0xDBFF
else if (n >= 55296 && n <= 56319)
{
// In this range, this is the beginning of a surrogate pair, where 4-byte utf8 chars are
n = 65536 + ((n & 1023) << 10) + (this.charCodeAt(i + 1) & 1023);
sReturn += String.fromCharCode(240 | n >> 18) + String.fromCharCode(128 | n >> 12 & 63) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
// Skip next char, already used...
i++;
}
else
sReturn += String.fromCharCode(224 | n >> 12) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
}

return sReturn;
}

And also find this:
Code: [Select]
String.prototype.php_urlencode = function()
{
if (smf_charset == 'UTF-8')
return encodeURIComponent(this);

return escape(this).replace(/\+/g, '%2b').replace('*', '%2a').replace('/', '%2f').replace('@', '%40');
}

Replace with:
Code: [Select]
String.prototype.php_urlencode = function()
{
return escape(this).replace(/\+/g, '%2b').replace('*', '%2a').replace('/', '%2f').replace('@', '%40');
}

I believe this will address all of the issues.
Please do not PM, IM or Email me with support questions.  You will get better and faster responses in the support boards.  Thank you.

Offline ziskar364

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Re: Character corruption upon inline edit after 2.0.16 update
« Reply #19 on: March 25, 2020, 03:39:21 PM »
I already did this but did not fix the issue.
Attaching my scripts file in case you can find any errors if this is possible to check please...

Code: [Select]
var smf_formSubmitted = false;
var lastKeepAliveCheck = new Date().getTime();
var smf_editorArray = new Array();

// Some very basic browser detection - from Mozilla's sniffer page.
var ua = navigator.userAgent.toLowerCase();

var is_opera = ua.indexOf('opera') != -1;
var is_opera5 = ua.indexOf('opera/5') != -1 || ua.indexOf('opera 5') != -1;
var is_opera6 = ua.indexOf('opera/6') != -1 || ua.indexOf('opera 6') != -1;
var is_opera7 = ua.indexOf('opera/7') != -1 || ua.indexOf('opera 7') != -1;
var is_opera8 = ua.indexOf('opera/8') != -1 || ua.indexOf('opera 8') != -1;
var is_opera9 = ua.indexOf('opera/9') != -1 || ua.indexOf('opera 9') != -1;
var is_opera95 = ua.indexOf('opera/9.5') != -1 || ua.indexOf('opera 9.5') != -1;
var is_opera96 = ua.indexOf('opera/9.6') != -1 || ua.indexOf('opera 9.6') != -1;
var is_opera10 = (ua.indexOf('opera/9.8') != -1 || ua.indexOf('opera 9.8') != -1 || ua.indexOf('opera/10.') != -1 || ua.indexOf('opera 10.') != -1) || ua.indexOf('version/10.') != -1;
var is_opera95up = is_opera95 || is_opera96 || is_opera10;

var is_ff = (ua.indexOf('firefox') != -1 || ua.indexOf('iceweasel') != -1 || ua.indexOf('icecat') != -1 || ua.indexOf('shiretoko') != -1 || ua.indexOf('minefield') != -1 || ua.indexOf('PaleMoon') != -1) && !is_opera;
var is_gecko = ua.indexOf('gecko') != -1 && !is_opera;

var is_chrome = ua.indexOf('chrome') != -1;
var is_safari = ua.indexOf('applewebkit') != -1 && !is_chrome;
var is_webkit = ua.indexOf('applewebkit') != -1;

var is_ie = ua.indexOf('msie') != -1 && !is_opera;
var is_ie4 = is_ie && ua.indexOf('msie 4') != -1;
var is_ie5 = is_ie && ua.indexOf('msie 5') != -1;
var is_ie50 = is_ie && ua.indexOf('msie 5.0') != -1;
var is_ie55 = is_ie && ua.indexOf('msie 5.5') != -1;
var is_ie5up = is_ie && !is_ie4;
var is_ie6 = is_ie && ua.indexOf('msie 6') != -1;
var is_ie6up = is_ie5up && !is_ie55 && !is_ie5;
var is_ie6down = is_ie6 || is_ie5 || is_ie4;
var is_ie7 = is_ie && ua.indexOf('msie 7') != -1;
var is_ie7up = is_ie6up && !is_ie6;
var is_ie7down = is_ie7 || is_ie6 || is_ie5 || is_ie4;

var is_ie8 = is_ie && ua.indexOf('msie 8') != -1;
var is_ie8up = is_ie8 && !is_ie7down;

var is_iphone = ua.indexOf('iphone') != -1 || ua.indexOf('ipod') != -1;
var is_android = ua.indexOf('android') != -1;

var ajax_indicator_ele = null;

// Define document.getElementById for Internet Explorer 4.
if (!('getElementById' in document) && 'all' in document)
document.getElementById = function (sId) {
return document.all[sId];
}

// Define XMLHttpRequest for IE 5 and above. (don't bother for IE 4 :/.... works in Opera 7.6 and Safari 1.2!)
else if (!('XMLHttpRequest' in window) && 'ActiveXObject' in window)
window.XMLHttpRequest = function () {
return new ActiveXObject(is_ie5 ? 'Microsoft.XMLHTTP' : 'MSXML2.XMLHTTP');
};

// Ensure the getElementsByTagName exists.
if (!'getElementsByTagName' in document && 'all' in document)
document.getElementsByTagName = function (sName) {
return document.all.tags[sName];
}

// Some older versions of Mozilla don't have this, for some reason.
if (!('forms' in document))
document.forms = document.getElementsByTagName('form');

// Load an XML document using XMLHttpRequest.
function getXMLDocument(sUrl, funcCallback)
{
if (!window.XMLHttpRequest)
return null;

var oMyDoc = new XMLHttpRequest();
var bAsync = typeof(funcCallback) != 'undefined';
var oCaller = this;
if (bAsync)
{
oMyDoc.onreadystatechange = function () {
if (oMyDoc.readyState != 4)
return;

if (oMyDoc.responseXML != null && oMyDoc.status == 200)
{
if (funcCallback.call)
{
funcCallback.call(oCaller, oMyDoc.responseXML);
}
// A primitive substitute for the call method to support IE 5.0.
else
{
oCaller.tmpMethod = funcCallback;
oCaller.tmpMethod(oMyDoc.responseXML);
delete oCaller.tmpMethod;
}
}
};
}
oMyDoc.open('GET', sUrl, bAsync);
oMyDoc.send(null);

return oMyDoc;
}

// Send a post form to the server using XMLHttpRequest.
function sendXMLDocument(sUrl, sContent, funcCallback)
{
if (!window.XMLHttpRequest)
return false;

var oSendDoc = new window.XMLHttpRequest();
var oCaller = this;
if (typeof(funcCallback) != 'undefined')
{
oSendDoc.onreadystatechange = function () {
if (oSendDoc.readyState != 4)
return;

if (oSendDoc.responseXML != null && oSendDoc.status == 200)
funcCallback.call(oCaller, oSendDoc.responseXML);
else
funcCallback.call(oCaller, false);
};
}
oSendDoc.open('POST', sUrl, true);
if ('setRequestHeader' in oSendDoc)
oSendDoc.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
oSendDoc.send(sContent);

return true;
}

// A property we'll be needing for php_to8bit.
String.prototype.oCharsetConversion = {
from: '',
to: ''
};

// Convert a string to an 8 bit representation (like in PHP).
String.prototype.php_to8bit = function ()
{
if (smf_charset == 'UTF-8')
{
var n, sReturn = '';

// Recode from UTF16 (native .js) to UTF8
for (var i = 0, iTextLen = this.length; i < iTextLen; i++)
{
// Below xFFFF, UTF16 simply = the code points
n = this.charCodeAt(i);
if (n < 128)
sReturn += String.fromCharCode(n);
else if (n < 2048)
sReturn += String.fromCharCode(192 | n >> 6) + String.fromCharCode(128 | n & 63);
// 0xD800 - 0xDBFF
else if (n >= 55296 && n <= 56319)
{
// In this range, this is the beginning of a surrogate pair, where 4-byte utf8 chars are
n = 65536 + ((n & 1023) << 10) + (this.charCodeAt(i + 1) & 1023);
sReturn += String.fromCharCode(240 | n >> 18) + String.fromCharCode(128 | n >> 12 & 63) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
// Skip next char, already used...
i++;
}
else
sReturn += String.fromCharCode(224 | n >> 12) + String.fromCharCode(128 | n >> 6 & 63) + String.fromCharCode(128 | n & 63);
}

return sReturn;
}

else if (this.oCharsetConversion.from.length == 0)
{
switch (smf_charset)
{
case 'ISO-8859-1':
this.oCharsetConversion = {
from: '\xa0-\xff',
to: '\xa0-\xff'
};
break;

case 'ISO-8859-2':
this.oCharsetConversion = {
from: '\xa0\u0104\u02d8\u0141\xa4\u013d\u015a\xa7\xa8\u0160\u015e\u0164\u0179\xad\u017d\u017b\xb0\u0105\u02db\u0142\xb4\u013e\u015b\u02c7\xb8\u0161\u015f\u0165\u017a\u02dd\u017e\u017c\u0154\xc1\xc2\u0102\xc4\u0139\u0106\xc7\u010c\xc9\u0118\xcb\u011a\xcd\xce\u010e\u0110\u0143\u0147\xd3\xd4\u0150\xd6\xd7\u0158\u016e\xda\u0170\xdc\xdd\u0162\xdf\u0155\xe1\xe2\u0103\xe4\u013a\u0107\xe7\u010d\xe9\u0119\xeb\u011b\xed\xee\u010f\u0111\u0144\u0148\xf3\xf4\u0151\xf6\xf7\u0159\u016f\xfa\u0171\xfc\xfd\u0163\u02d9',
to: '\xa0-\xff'
};
break;

case 'ISO-8859-5':
this.oCharsetConversion = {
from: '\xa0\u0401-\u040c\xad\u040e-\u044f\u2116\u0451-\u045c\xa7\u045e\u045f',
to: '\xa0-\xff'
};
break;

case 'ISO-8859-9':
this.oCharsetConversion = {
from: '\xa0-\xcf\u011e\xd1-\xdc\u0130\u015e\xdf-\xef\u011f\xf1-\xfc\u0131\u015f\xff',
to: '\xa0-\xff'
};
break;

case 'ISO-8859-15':
this.oCharsetConversion = {
from: '\xa0-\xa3\u20ac\xa5\u0160\xa7\u0161\xa9-\xb3\u017d\xb5-\xb7\u017e\xb9-\xbb\u0152\u0153\u0178\xbf-\xff',
to: '\xa0-\xff'
};
break;

case 'tis-620':
this.oCharsetConversion = {
from: '\u20ac\u2026\u2018\u2019\u201c\u201d\u2022\u2013\u2014\xa0\u0e01-\u0e3a\u0e3f-\u0e5b',
to: '\x80\x85\x91-\x97\xa0-\xda\xdf-\xfb'
};
break;

case 'windows-1251':
this.oCharsetConversion = {
from: '\u0402\u0403\u201a\u0453\u201e\u2026\u2020\u2021\u20ac\u2030\u0409\u2039\u040a\u040c\u040b\u040f\u0452\u2018\u2019\u201c\u201d\u2022\u2013\u2014\u2122\u0459\u203a\u045a\u045c\u045b\u045f\xa0\u040e\u045e\u0408\xa4\u0490\xa6\xa7\u0401\xa9\u0404\xab-\xae\u0407\xb0\xb1\u0406\u0456\u0491\xb5-\xb7\u0451\u2116\u0454\xbb\u0458\u0405\u0455\u0457\u0410-\u044f',
to: '\x80-\x97\x99-\xff'
};
break;

case 'windows-1253':
this.oCharsetConversion = {
from: '\u20ac\u201a\u0192\u201e\u2026\u2020\u2021\u2030\u2039\u2018\u2019\u201c\u201d\u2022\u2013\u2014\u2122\u203a\xa0\u0385\u0386\xa3-\xa9\xab-\xae\u2015\xb0-\xb3\u0384\xb5-\xb7\u0388-\u038a\xbb\u038c\xbd\u038e-\u03a1\u03a3-\u03ce',
to: '\x80\x82-\x87\x89\x8b\x91-\x97\x99\x9b\xa0-\xa9\xab-\xd1\xd3-\xfe'
};
break;

case 'windows-1255':
this.oCharsetConversion = {
from: '\u20ac\u201a\u0192\u201e\u2026\u2020\u2021\u02c6\u2030\u2039\u2018\u2019\u201c\u201d\u2022\u2013\u2014\u02dc\u2122\u203a\xa0-\xa3\u20aa\xa5-\xa9\xd7\xab-\xb9\xf7\xbb-\xbf\u05b0-\u05b9\u05bb-\u05c3\u05f0-\u05f4\u05d0-\u05ea\u200e\u200f',
to: '\x80\x82-\x89\x8b\x91-\x99\x9b\xa0-\xc9\xcb-\xd8\xe0-\xfa\xfd\xfe'
};
break;

case 'windows-1256':
this.oCharsetConversion = {
from: '\u20ac\u067e\u201a\u0192\u201e\u2026\u2020\u2021\u02c6\u2030\u0679\u2039\u0152\u0686\u0698\u0688\u06af\u2018\u2019\u201c\u201d\u2022\u2013\u2014\u06a9\u2122\u0691\u203a\u0153\u200c\u200d\u06ba\xa0\u060c\xa2-\xa9\u06be\xab-\xb9\u061b\xbb-\xbe\u061f\u06c1\u0621-\u0636\xd7\u0637-\u063a\u0640-\u0643\xe0\u0644\xe2\u0645-\u0648\xe7-\xeb\u0649\u064a\xee\xef\u064b-\u064e\xf4\u064f\u0650\xf7\u0651\xf9\u0652\xfb\xfc\u200e\u200f\u06d2',
to: '\x80-\xff'
};
break;

default:
this.oCharsetConversion = {
from: '',
to: ''
};
break;
}
var funcExpandString = function (sSearch) {
var sInsert = '';
for (var i = sSearch.charCodeAt(0), n = sSearch.charCodeAt(2); i <= n; i++)
sInsert += String.fromCharCode(i);
return sInsert;
};
this.oCharsetConversion.from = this.oCharsetConversion.from.replace(/.\-./g, funcExpandString);
this.oCharsetConversion.to = this.oCharsetConversion.to.replace(/.\-./g, funcExpandString);
}

var sReturn = '', iOffsetFrom = 0;
for (var i = 0, n = this.length; i < n; i++)
{
iOffsetFrom = this.oCharsetConversion.from.indexOf(this.charAt(i));
sReturn += iOffsetFrom > -1 ? this.oCharsetConversion.to.charAt(iOffsetFrom) : (this.charCodeAt(i) > 127 ? '&#' + this.charCodeAt(i) + ';' : this.charAt(i));
}

return sReturn
}

// Character-level replacement function.
String.prototype.php_strtr = function (sFrom, sTo)
{
return this.replace(new RegExp('[' + sFrom + ']', 'g'), function (sMatch) {
return sTo.charAt(sFrom.indexOf(sMatch));
});
}

// Simulate PHP's strtolower (in SOME cases PHP uses ISO-8859-1 case folding).
String.prototype.php_strtolower = function ()
{
return typeof(smf_iso_case_folding) == 'boolean' && smf_iso_case_folding == true ? this.php_strtr(
'ABCDEFGHIJKLMNOPQRSTUVWXYZ\x8a\x8c\x8e\x9f\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde',
'abcdefghijklmnopqrstuvwxyz\x9a\x9c\x9e\xff\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe'
) : this.php_strtr('ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz');
}

String.prototype.php_urlencode = function()
{

return escape(this).replace(/\+/g, '%2b').replace('*', '%2a').replace('/', '%2f').replace('@', '%40');
}

String.prototype.php_htmlspecialchars = function()
{
return this.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
}

String.prototype.php_unhtmlspecialchars = function()
{
return this.replace(/&quot;/g, '"').replace(/&gt;/g, '>').replace(/&lt;/g, '<').replace(/&amp;/g, '&');
}

String.prototype.php_addslashes = function()
{
return this.replace(/\\/g, '\\\\').replace(/'/g, '\\\'');
}

String.prototype._replaceEntities = function(sInput, sDummy, sNum)
{
return String.fromCharCode(parseInt(sNum));
}

String.prototype.removeEntities = function()
{
return this.replace(/&(amp;)?#(\d+);/g, this._replaceEntities);
}

String.prototype.easyReplace = function (oReplacements)
{
var sResult = this;
for (var sSearch in oReplacements)
sResult = sResult.replace(new RegExp('%' + sSearch + '%', 'g'), oReplacements[sSearch]);

return sResult;
}


// Open a new window.
function reqWin(desktopURL, alternateWidth, alternateHeight, noScrollbars)
{
if ((alternateWidth && self.screen.availWidth * 0.8 < alternateWidth) || (alternateHeight && self.screen.availHeight * 0.8 < alternateHeight))
{
noScrollbars = false;
alternateWidth = Math.min(alternateWidth, self.screen.availWidth * 0.8);
alternateHeight = Math.min(alternateHeight, self.screen.availHeight * 0.8);
}
else
noScrollbars = typeof(noScrollbars) == 'boolean' && noScrollbars == true;

window.open(desktopURL, 'requested_popup', 'toolbar=no,location=no,status=no,menubar=no,scrollbars=' + (noScrollbars ? 'no' : 'yes') + ',width=' + (alternateWidth ? alternateWidth : 480) + ',height=' + (alternateHeight ? alternateHeight : 220) + ',resizable=no');

// Return false so the click won't follow the link ;).
return false;
}

// Remember the current position.
function storeCaret(oTextHandle)
{
// Only bother if it will be useful.
if ('createTextRange' in oTextHandle)
oTextHandle.caretPos = document.selection.createRange().duplicate();
}

// Replaces the currently selected text with the passed text.
function replaceText(text, oTextHandle)
{
// Attempt to create a text range (IE).
if ('caretPos' in oTextHandle && 'createTextRange' in oTextHandle)
{
var caretPos = oTextHandle.caretPos;

caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text + ' ' : text;
caretPos.select();
}
// Mozilla text range replace.
else if ('selectionStart' in oTextHandle)
{
var begin = oTextHandle.value.substr(0, oTextHandle.selectionStart);
var end = oTextHandle.value.substr(oTextHandle.selectionEnd);
var scrollPos = oTextHandle.scrollTop;

oTextHandle.value = begin + text + end;

if (oTextHandle.setSelectionRange)
{
oTextHandle.focus();
var goForward = is_opera ? text.match(/\n/g).length : 0;
oTextHandle.setSelectionRange(begin.length + text.length + goForward, begin.length + text.length + goForward);
}
oTextHandle.scrollTop = scrollPos;
}
// Just put it on the end.
else
{
oTextHandle.value += text;
oTextHandle.focus(oTextHandle.value.length - 1);
}
}

// Surrounds the selected text with text1 and text2.
function surroundText(text1, text2, oTextHandle)
{
// Can a text range be created?
if ('caretPos' in oTextHandle && 'createTextRange' in oTextHandle)
{
var caretPos = oTextHandle.caretPos, temp_length = caretPos.text.length;

caretPos.text = caretPos.text.charAt(caretPos.text.length - 1) == ' ' ? text1 + caretPos.text + text2 + ' ' : text1 + caretPos.text + text2;

if (temp_length == 0)
{
caretPos.moveStart('character', -text2.length);
caretPos.moveEnd('character', -text2.length);
caretPos.select();
}
else
oTextHandle.focus(caretPos);
}
// Mozilla text range wrap.
else if ('selectionStart' in oTextHandle)
{
var begin = oTextHandle.value.substr(0, oTextHandle.selectionStart);
var selection = oTextHandle.value.substr(oTextHandle.selectionStart, oTextHandle.selectionEnd - oTextHandle.selectionStart);
var end = oTextHandle.value.substr(oTextHandle.selectionEnd);
var newCursorPos = oTextHandle.selectionStart;
var scrollPos = oTextHandle.scrollTop;

oTextHandle.value = begin + text1 + selection + text2 + end;

if (oTextHandle.setSelectionRange)
{
var goForward = is_opera ? text1.match(/\n/g).length : 0, goForwardAll = is_opera ? (text1 + text2).match(/\n/g).length : 0;
if (selection.length == 0)
oTextHandle.setSelectionRange(newCursorPos + text1.length + goForward, newCursorPos + text1.length + goForward);
else
oTextHandle.setSelectionRange(newCursorPos, newCursorPos + text1.length + selection.length + text2.length + goForwardAll);
oTextHandle.focus();
}
oTextHandle.scrollTop = scrollPos;
}
// Just put them on the end, then.
else
{
oTextHandle.value += text1 + text2;
oTextHandle.focus(oTextHandle.value.length - 1);
}
}

// Checks if the passed input's value is nothing.
function isEmptyText(theField)
{
// Copy the value so changes can be made..
var theValue = theField.value;

// Strip whitespace off the left side.
while (theValue.length > 0 && (theValue.charAt(0) == ' ' || theValue.charAt(0) == '\t'))
theValue = theValue.substring(1, theValue.length);
// Strip whitespace off the right side.
while (theValue.length > 0 && (theValue.charAt(theValue.length - 1) == ' ' || theValue.charAt(theValue.length - 1) == '\t'))
theValue = theValue.substring(0, theValue.length - 1);

if (theValue == '')
return true;
else
return false;
}

// Only allow form submission ONCE.
function submitonce(theform)
{
smf_formSubmitted = true;

// If there are any editors warn them submit is coming!
for (var i = 0; i < smf_editorArray.length; i++)
smf_editorArray[i].doSubmit();
}
function submitThisOnce(oControl)
{
// Hateful, hateful fix for Safari 1.3 beta.
if (is_safari)
return !smf_formSubmitted;

// oControl might also be a form.
var oForm = 'form' in oControl ? oControl.form : oControl;

var aTextareas = oForm.getElementsByTagName('textarea');
for (var i = 0, n = aTextareas.length; i < n; i++)
aTextareas[i].readOnly = true;

return !smf_formSubmitted;
}

// Deprecated, as innerHTML is supported everywhere.
function setInnerHTML(oElement, sToValue)
{
oElement.innerHTML = sToValue;
}

function getInnerHTML(oElement)
{
return oElement.innerHTML;
}

// Set the "outer" HTML of an element.
function setOuterHTML(oElement, sToValue)
{
if ('outerHTML' in oElement)
oElement.outerHTML = sToValue;
else
{
var range = document.createRange();
range.setStartBefore(oElement);
oElement.parentNode.replaceChild(range.createContextualFragment(sToValue), oElement);
}
}

// Checks for variable in theArray.
function in_array(variable, theArray)
{
for (var i in theArray)
if (theArray[i] == variable)
return true;

return false;
}

// Checks for variable in theArray.
function array_search(variable, theArray)
{
for (var i in theArray)
if (theArray[i] == variable)
return i;

return null;
}

// Find a specific radio button in its group and select it.
function selectRadioByName(oRadioGroup, sName)
{
if (!('length' in oRadioGroup))
return oRadioGroup.checked = true;

for (var i = 0, n = oRadioGroup.length; i < n; i++)
if (oRadioGroup[i].value == sName)
return oRadioGroup[i].checked = true;

return false;
}

// Invert all checkboxes at once by clicking a single checkbox.
function invertAll(oInvertCheckbox, oForm, sMask, bIgnoreDisabled)
{
for (var i = 0; i < oForm.length; i++)
{
if (!('name' in oForm[i]) || (typeof(sMask) == 'string' && oForm[i].name.substr(0, sMask.length) != sMask && oForm[i].id.substr(0, sMask.length) != sMask))
continue;

if (!oForm[i].disabled || (typeof(bIgnoreDisabled) == 'boolean' && bIgnoreDisabled))
oForm[i].checked = oInvertCheckbox.checked;
}
}

// Keep the session alive - always!
var lastKeepAliveCheck = new Date().getTime();
function smf_sessionKeepAlive()
{
var curTime = new Date().getTime();

// Prevent a Firefox bug from hammering the server.
if (smf_scripturl && curTime - lastKeepAliveCheck > 900000)
{
var tempImage = new Image();
tempImage.src = smf_prepareScriptUrl(smf_scripturl) + 'action=keepalive;time=' + curTime;
lastKeepAliveCheck = curTime;
}

window.setTimeout('smf_sessionKeepAlive();', 1200000);
}
window.setTimeout('smf_sessionKeepAlive();', 1200000);

// Set a theme option through javascript.
function smf_setThemeOption(option, value, theme, cur_session_id, cur_session_var, additional_vars)
{
// Compatibility.
if (cur_session_id == null)
cur_session_id = smf_session_id;
if (typeof(cur_session_var) == 'undefined')
cur_session_var = 'sesc';

if (additional_vars == null)
additional_vars = '';

var tempImage = new Image();
tempImage.src = smf_prepareScriptUrl(smf_scripturl) + 'action=jsoption;var=' + option + ';val=' + value + ';' + cur_session_var + '=' + cur_session_id + additional_vars + (theme == null ? '' : '&th=' + theme) + ';time=' + (new Date().getTime());
}

function smf_avatarResize()
{
var possibleAvatars = document.getElementsByTagName('img');

for (var i = 0; i < possibleAvatars.length; i++)
{
var tempAvatars = []; j = 0;
if (possibleAvatars[i].className != 'avatar')
continue;

// Image.prototype.avatar = possibleAvatars[i];
tempAvatars[j] = new Image();
tempAvatars[j].avatar = possibleAvatars[i];

tempAvatars[j].onload = function()
{
this.avatar.width = this.width;
this.avatar.height = this.height;
if (smf_avatarMaxWidth != 0 && this.width > smf_avatarMaxWidth)
{
this.avatar.height = (smf_avatarMaxWidth * this.height) / this.width;
this.avatar.width = smf_avatarMaxWidth;
}
if (smf_avatarMaxHeight != 0 && this.avatar.height > smf_avatarMaxHeight)
{
this.avatar.width = (smf_avatarMaxHeight * this.avatar.width) / this.avatar.height;
this.avatar.height = smf_avatarMaxHeight;
}
}
tempAvatars[j].src = possibleAvatars[i].src;
j++;
}

if (typeof(window_oldAvatarOnload) != 'undefined' && window_oldAvatarOnload)
{
window_oldAvatarOnload();
window_oldAvatarOnload = null;
}
}


function hashLoginPassword(doForm, cur_session_id)
{
// Compatibility.
if (cur_session_id == null)
cur_session_id = smf_session_id;

if (typeof(hex_sha1) == 'undefined')
return;
// Are they using an email address?
if (doForm.user.value.indexOf('@') != -1)
return;

// Unless the browser is Opera, the password will not save properly.
if (!('opera' in window))
doForm.passwrd.autocomplete = 'off';

doForm.hash_passwrd.value = hex_sha1(hex_sha1(doForm.user.value.php_to8bit().php_strtolower() + doForm.passwrd.value.php_to8bit()) + cur_session_id);

// It looks nicer to fill it with asterisks, but Firefox will try to save that.
if (is_ff != -1)
doForm.passwrd.value = '';
else
doForm.passwrd.value = doForm.passwrd.value.replace(/./g, '*');
}

function hashAdminPassword(doForm, username, cur_session_id)
{
// Compatibility.
if (cur_session_id == null)
cur_session_id = smf_session_id;

if (typeof(hex_sha1) == 'undefined')
return;

doForm.admin_hash_pass.value = hex_sha1(hex_sha1(username.php_to8bit().php_strtolower() + doForm.admin_pass.value.php_to8bit()) + cur_session_id);
doForm.admin_pass.value = doForm.admin_pass.value.replace(/./g, '*');
}

// Shows the page numbers by clicking the dots (in compact view).
function expandPages(spanNode, baseURL, firstPage, lastPage, perPage)
{
var replacement = '', i, oldLastPage = 0;
var perPageLimit = 50;

// The dots were bold, the page numbers are not (in most cases).
spanNode.style.fontWeight = 'normal';
spanNode.onclick = '';

// Prevent too many pages to be loaded at once.
if ((lastPage - firstPage) / perPage > perPageLimit)
{
oldLastPage = lastPage;
lastPage = firstPage + perPageLimit * perPage;
}

// Calculate the new pages.
for (i = firstPage; i < lastPage; i += perPage)
replacement += '<a class="navPages" href="' + baseURL.replace(/%1\$d/, i).replace(/%%/g, '%') + '">' + (1 + i / perPage) + '</a> ';

if (oldLastPage > 0)
replacement += '<span style="font-weight: bold; cursor: ' + (is_ie && !is_ie6up ? 'hand' : 'pointer') + ';" onclick="expandPages(this, \'' + baseURL + '\', ' + lastPage + ', ' + oldLastPage + ', ' + perPage + ');"> ... </span> ';

// Replace the dots by the new page links.
setInnerHTML(spanNode, replacement);
}

function smc_preCacheImage(sSrc)
{
if (!('smc_aCachedImages' in window))
window.smc_aCachedImages = [];

if (!in_array(sSrc, window.smc_aCachedImages))
{
var oImage = new Image();
oImage.src = sSrc;
}
}


// *** smc_Cookie class.
function smc_Cookie(oOptions)
{
this.opt = oOptions;
this.oCookies = {};
this.init();
}

smc_Cookie.prototype.init = function()
{
if ('cookie' in document && document.cookie != '')
{
var aCookieList = document.cookie.split(';');
for (var i = 0, n = aCookieList.length; i < n; i++)
{
var aNameValuePair = aCookieList[i].split('=');
this.oCookies[aNameValuePair[0].replace(/^\s+|\s+$/g, '')] = decodeURIComponent(aNameValuePair[1]);
}
}
}

smc_Cookie.prototype.get = function(sKey)
{
return sKey in this.oCookies ? this.oCookies[sKey] : null;
}

smc_Cookie.prototype.set = function(sKey, sValue)
{
document.cookie = sKey + '=' + encodeURIComponent(sValue);
}


// *** smc_Toggle class.
function smc_Toggle(oOptions)
{
this.opt = oOptions;
this.bCollapsed = false;
this.oCookie = null;
this.init();
}

smc_Toggle.prototype.init = function ()
{
// The master switch can disable this toggle fully.
if ('bToggleEnabled' in this.opt && !this.opt.bToggleEnabled)
return;

// If cookies are enabled and they were set, override the initial state.
if ('oCookieOptions' in this.opt && this.opt.oCookieOptions.bUseCookie)
{
// Initialize the cookie handler.
this.oCookie = new smc_Cookie({});

// Check if the cookie is set.
var cookieValue = this.oCookie.get(this.opt.oCookieOptions.sCookieName)
if (cookieValue != null)
this.opt.bCurrentlyCollapsed = cookieValue == '1';
}

// If the init state is set to be collapsed, collapse it.
if (this.opt.bCurrentlyCollapsed)
this.changeState(true, true);

// Initialize the images to be clickable.
if ('aSwapImages' in this.opt)
{
for (var i = 0, n = this.opt.aSwapImages.length; i < n; i++)
{
var oImage = document.getElementById(this.opt.aSwapImages[i].sId);
if (typeof(oImage) == 'object' && oImage != null)
{
// Display the image in case it was hidden.
if (oImage.style.display == 'none')
oImage.style.display = '';

oImage.instanceRef = this;
oImage.onclick = function () {
this.instanceRef.toggle();
this.blur();
}
oImage.style.cursor = 'pointer';

// Preload the collapsed image.
smc_preCacheImage(this.opt.aSwapImages[i].srcCollapsed);
}
}
}

// Initialize links.
if ('aSwapLinks' in this.opt)
{
for (var i = 0, n = this.opt.aSwapLinks.length; i < n; i++)
{
var oLink = document.getElementById(this.opt.aSwapLinks[i].sId);
if (typeof(oLink) == 'object' && oLink != null)
{
// Display the link in case it was hidden.
if (oLink.style.display == 'none')
oLink.style.display = '';

oLink.instanceRef = this;
oLink.onclick = function () {
this.instanceRef.toggle();
this.blur();
return false;
}
}
}
}
}

// Collapse or expand the section.
smc_Toggle.prototype.changeState = function(bCollapse, bInit)
{
// Default bInit to false.
bInit = typeof(bInit) == 'undefined' ? false : true;

// Handle custom function hook before collapse.
if (!bInit && bCollapse && 'funcOnBeforeCollapse' in this.opt)
{
this.tmpMethod = this.opt.funcOnBeforeCollapse;
this.tmpMethod();
delete this.tmpMethod;
}

// Handle custom function hook before expand.
else if (!bInit && !bCollapse && 'funcOnBeforeExpand' in this.opt)
{
this.tmpMethod = this.opt.funcOnBeforeExpand;
this.tmpMethod();
delete this.tmpMethod;
}

// Loop through all the images that need to be toggled.
if ('aSwapImages' in this.opt)
{
for (var i = 0, n = this.opt.aSwapImages.length; i < n; i++)
{
var oImage = document.getElementById(this.opt.aSwapImages[i].sId);
if (typeof(oImage) == 'object' && oImage != null)
{
// Only (re)load the image if it's changed.
var sTargetSource = bCollapse ? this.opt.aSwapImages[i].srcCollapsed : this.opt.aSwapImages[i].srcExpanded;
if (oImage.src != sTargetSource)
oImage.src = sTargetSource;

oImage.alt = oImage.title = bCollapse ? this.opt.aSwapImages[i].altCollapsed : this.opt.aSwapImages[i].altExpanded;
}
}
}

// Loop through all the links that need to be toggled.
if ('aSwapLinks' in this.opt)
{
for (var i = 0, n = this.opt.aSwapLinks.length; i < n; i++)
{
var oLink = document.getElementById(this.opt.aSwapLinks[i].sId);
if (typeof(oLink) == 'object' && oLink != null)
setInnerHTML(oLink, bCollapse ? this.opt.aSwapLinks[i].msgCollapsed : this.opt.aSwapLinks[i].msgExpanded);
}
}

// Now go through all the sections to be collapsed.
for (var i = 0, n = this.opt.aSwappableContainers.length; i < n; i++)
{
if (this.opt.aSwappableContainers[i] == null)
continue;

var oContainer = document.getElementById(this.opt.aSwappableContainers[i]);
if (typeof(oContainer) == 'object' && oContainer != null)
oContainer.style.display = bCollapse ? 'none' : '';
}

// Update the new state.
this.bCollapsed = bCollapse;

// Update the cookie, if desired.
if ('oCookieOptions' in this.opt && this.opt.oCookieOptions.bUseCookie)
this.oCookie.set(this.opt.oCookieOptions.sCookieName, this.bCollapsed ? '1' : '0');

if (!bInit && 'oThemeOptions' in this.opt && this.opt.oThemeOptions.bUseThemeSettings)
smf_setThemeOption(this.opt.oThemeOptions.sOptionName, this.bCollapsed ? '1' : '0', 'sThemeId' in this.opt.oThemeOptions ? this.opt.oThemeOptions.sThemeId : null, this.opt.oThemeOptions.sSessionId, this.opt.oThemeOptions.sSessionVar, 'sAdditionalVars' in this.opt.oThemeOptions ? this.opt.oThemeOptions.sAdditionalVars : null);
}

smc_Toggle.prototype.toggle = function()
{
// Change the state by reversing the current state.
this.changeState(!this.bCollapsed);
}


function ajax_indicator(turn_on)
{
if (ajax_indicator_ele == null)
{
ajax_indicator_ele = document.getElementById('ajax_in_progress');

if (ajax_indicator_ele == null && typeof(ajax_notification_text) != null)
{
create_ajax_indicator_ele();
}
}

if (ajax_indicator_ele != null)
{
if (navigator.appName == 'Microsoft Internet Explorer' && !is_ie7up)
{
ajax_indicator_ele.style.position = 'absolute';
ajax_indicator_ele.style.top = document.documentElement.scrollTop;
}

ajax_indicator_ele.style.display = turn_on ? 'block' : 'none';
}
}

function create_ajax_indicator_ele()
{
// Create the div for the indicator.
ajax_indicator_ele = document.createElement('div');

// Set the id so it'll load the style properly.
ajax_indicator_ele.id = 'ajax_in_progress';

// Add the image in and link to turn it off.
var cancel_link = document.createElement('a');
cancel_link.href = 'javascript:ajax_indicator(false)';
var cancel_img = document.createElement('img');
cancel_img.src = smf_images_url + '/icons/quick_remove.gif';

if (typeof(ajax_notification_cancel_text) != 'undefined')
{
cancel_img.alt = ajax_notification_cancel_text;
cancel_img.title = ajax_notification_cancel_text;
}

// Add the cancel link and image to the indicator.
cancel_link.appendChild(cancel_img);
ajax_indicator_ele.appendChild(cancel_link);

// Set the text.  (Note:  You MUST append here and not overwrite.)
ajax_indicator_ele.innerHTML += ajax_notification_text;

// Finally attach the element to the body.
document.body.appendChild(ajax_indicator_ele);
}

function createEventListener(oTarget)
{
if (!('addEventListener' in oTarget))
{
if (oTarget.attachEvent)
{
oTarget.addEventListener = function (sEvent, funcHandler, bCapture) {
oTarget.attachEvent('on' + sEvent, funcHandler);
}
oTarget.removeEventListener = function (sEvent, funcHandler, bCapture) {
oTarget.detachEvent('on' + sEvent, funcHandler);
}
}
else
{
oTarget.addEventListener = function (sEvent, funcHandler, bCapture) {
oTarget['on' + sEvent] = funcHandler;
}
oTarget.removeEventListener = function (sEvent, funcHandler, bCapture) {
oTarget['on' + sEvent] = null;
}
}
}
}

// This function will retrieve the contents needed for the jump to boxes.
function grabJumpToContent()
{
var oXMLDoc = getXMLDocument(smf_prepareScriptUrl(smf_scripturl) + 'action=xmlhttp;sa=jumpto;xml');
var aBoardsAndCategories = new Array();

ajax_indicator(true);

if (oXMLDoc.responseXML)
{
var items = oXMLDoc.responseXML.getElementsByTagName('smf')[0].getElementsByTagName('item');
for (var i = 0, n = items.length; i < n; i++)
{
aBoardsAndCategories[aBoardsAndCategories.length] = {
id: parseInt(items[i].getAttribute('id')),
isCategory: items[i].getAttribute('type') == 'category',
name: items[i].firstChild.nodeValue.removeEntities(),
is_current: false,
childLevel: parseInt(items[i].getAttribute('childlevel'))
}
}
}

ajax_indicator(false);

for (var i = 0, n = aJumpTo.length; i < n; i++)
aJumpTo[i].fillSelect(aBoardsAndCategories);
}

// This'll contain all JumpTo objects on the page.
var aJumpTo = new Array();

// *** JumpTo class.
function JumpTo(oJumpToOptions)
{
this.opt = oJumpToOptions;
this.dropdownList = null;
this.showSelect();
}

// Show the initial select box (onload). Method of the JumpTo class.
JumpTo.prototype.showSelect = function ()
{
var sChildLevelPrefix = '';
for (var i = this.opt.iCurBoardChildLevel; i > 0; i--)
sChildLevelPrefix += this.opt.sBoardChildLevelIndicator;
setInnerHTML(document.getElementById(this.opt.sContainerId), this.opt.sJumpToTemplate.replace(/%select_id%/, this.opt.sContainerId + '_select').replace(/%dropdown_list%/, '<select name="' + this.opt.sContainerId + '_select" id="' + this.opt.sContainerId + '_select" ' + ('implementation' in document ? '' : 'onmouseover="grabJumpToContent();" ') + ('onbeforeactivate' in document ? 'onbeforeactivate' : 'onfocus') + '="grabJumpToContent();"><option value="?board=' + this.opt.iCurBoardId + '.0">' + sChildLevelPrefix + this.opt.sBoardPrefix + this.opt.sCurBoardName.removeEntities() + '</option></select>&nbsp;<input type="button" value="' + this.opt.sGoButtonLabel + '" onclick="window.location.href = \'' + smf_prepareScriptUrl(smf_scripturl) + 'board=' + this.opt.iCurBoardId + '.0\';" />'));
this.dropdownList = document.getElementById(this.opt.sContainerId + '_select');
}

// Fill the jump to box with entries. Method of the JumpTo class.
JumpTo.prototype.fillSelect = function (aBoardsAndCategories)
{
var bIE5x = !('implementation' in document);
var iIndexPointer = 0;

// Create an option that'll be above and below the category.
var oDashOption = document.createElement('option');
oDashOption.appendChild(document.createTextNode(this.opt.sCatSeparator));
oDashOption.disabled = 'disabled';
oDashOption.value = '';

// Reset the events and clear the list (IE5.x only).
if (bIE5x)
{
this.dropdownList.onmouseover = null;
this.dropdownList.remove(0);
}
if ('onbeforeactivate' in document)
this.dropdownList.onbeforeactivate = null;
else
this.dropdownList.onfocus = null;

// Create a document fragment that'll allowing inserting big parts at once.
var oListFragment = bIE5x ? this.dropdownList : document.createDocumentFragment();

// Loop through all items to be added.
for (var i = 0, n = aBoardsAndCategories.length; i < n; i++)
{
var j, sChildLevelPrefix, oOption;

// If we've reached the currently selected board add all items so far.
if (!aBoardsAndCategories[i].isCategory && aBoardsAndCategories[i].id == this.opt.iCurBoardId)
{
if (bIE5x)
iIndexPointer = this.dropdownList.options.length;
else
{
this.dropdownList.insertBefore(oListFragment, this.dropdownList.options[0]);
oListFragment = document.createDocumentFragment();
continue;
}
}

if (aBoardsAndCategories[i].isCategory)
oListFragment.appendChild(oDashOption.cloneNode(true));
else
for (j = aBoardsAndCategories[i].childLevel, sChildLevelPrefix = ''; j > 0; j--)
sChildLevelPrefix += this.opt.sBoardChildLevelIndicator;

oOption = document.createElement('option');
oOption.appendChild(document.createTextNode((aBoardsAndCategories[i].isCategory ? this.opt.sCatPrefix : sChildLevelPrefix + this.opt.sBoardPrefix) + aBoardsAndCategories[i].name));
oOption.value = aBoardsAndCategories[i].isCategory ? '?action=forum#c' + aBoardsAndCategories[i].id : '?board=' + aBoardsAndCategories[i].id + '.0';
oListFragment.appendChild(oOption);

if (aBoardsAndCategories[i].isCategory)
oListFragment.appendChild(oDashOption.cloneNode(true));
}

// Add the remaining items after the currently selected item.
this.dropdownList.appendChild(oListFragment);

if (bIE5x)
this.dropdownList.options[iIndexPointer].selected = true;

// Internet Explorer needs this to keep the box dropped down.
this.dropdownList.style.width = 'auto';
this.dropdownList.focus();

// Add an onchange action
this.dropdownList.onchange = function() {
if (this.selectedIndex > 0 && this.options[this.selectedIndex].value)
window.location.href = smf_scripturl + this.options[this.selectedIndex].value.substr(smf_scripturl.indexOf('?') == -1 || this.options[this.selectedIndex].value.substr(0, 1) != '?' ? 0 : 1);
}
}

// A global array containing all IconList objects.
var aIconLists = new Array();

// *** IconList object.
function IconList(oOptions)
{
if (!window.XMLHttpRequest)
return;

this.opt = oOptions;
this.bListLoaded = false;
this.oContainerDiv = null;
this.funcMousedownHandler = null;
this.funcParent = this;
this.iCurMessageId = 0;
this.iCurTimeout = 0;

// Add backwards compatibility with old themes.
if (!('sSessionVar' in this.opt))
this.opt.sSessionVar = 'sesc';

this.initIcons();
}

// Replace all message icons by icons with hoverable and clickable div's.
IconList.prototype.initIcons = function ()
{
for (var i = document.images.length - 1, iPrefixLength = this.opt.sIconIdPrefix.length; i >= 0; i--)
if (document.images[i].id.substr(0, iPrefixLength) == this.opt.sIconIdPrefix)
setOuterHTML(document.images[i], '<div title="' + this.opt.sLabelIconList + '" onclick="' + this.opt.sBackReference + '.openPopup(this, ' + document.images[i].id.substr(iPrefixLength) + ')" onmouseover="' + this.opt.sBackReference + '.onBoxHover(this, true)" onmouseout="' + this.opt.sBackReference + '.onBoxHover(this, false)" style="background: ' + this.opt.sBoxBackground + '; cursor: ' + (is_ie && !is_ie6up ? 'hand' : 'pointer') + '; padding: 3px; text-align: center;"><img src="' + document.images[i].src + '" alt="' + document.images[i].alt + '" id="' + document.images[i].id + '" style="margin: 0px; padding: ' + (is_ie ? '3px' : '3px 0px 3px 0px') + ';" /></div>');
}

// Event for the mouse hovering over the original icon.
IconList.prototype.onBoxHover = function (oDiv, bMouseOver)
{
oDiv.style.border = bMouseOver ? this.opt.iBoxBorderWidthHover + 'px solid ' + this.opt.sBoxBorderColorHover : '';
oDiv.style.background = bMouseOver ? this.opt.sBoxBackgroundHover : this.opt.sBoxBackground;
oDiv.style.padding = bMouseOver ? (3 - this.opt.iBoxBorderWidthHover) + 'px' : '3px'
}

// Show the list of icons after the user clicked the original icon.
IconList.prototype.openPopup = function (oDiv, iMessageId)
{
this.iCurMessageId = iMessageId;

if (!this.bListLoaded && this.oContainerDiv == null)
{
// Create a container div.
this.oContainerDiv = document.createElement('div');
this.oContainerDiv.id = 'iconList';
this.oContainerDiv.style.display = 'none';
this.oContainerDiv.style.cursor = is_ie && !is_ie6up ? 'hand' : 'pointer';
this.oContainerDiv.style.position = 'absolute';
this.oContainerDiv.style.width = oDiv.offsetWidth + 'px';
this.oContainerDiv.style.background = this.opt.sContainerBackground;
this.oContainerDiv.style.border = this.opt.sContainerBorder;
this.oContainerDiv.style.padding = '1px';
this.oContainerDiv.style.textAlign = 'center';
document.body.appendChild(this.oContainerDiv);

// Start to fetch its contents.
ajax_indicator(true);
this.tmpMethod = getXMLDocument;
this.tmpMethod(smf_prepareScriptUrl(this.opt.sScriptUrl) + 'action=xmlhttp;sa=messageicons;board=' + this.opt.iBoardId + ';xml', this.onIconsReceived);
delete this.tmpMethod;

createEventListener(document.body);
}

// Set the position of the container.
var aPos = smf_itemPos(oDiv);
if (is_ie50)
aPos[1] += 4;

this.oContainerDiv.style.top = (aPos[1] + oDiv.offsetHeight) + 'px';
this.oContainerDiv.style.left = (aPos[0] - 1) + 'px';
this.oClickedIcon = oDiv;

if (this.bListLoaded)
this.oContainerDiv.style.display = 'block';

document.body.addEventListener('mousedown', this.onWindowMouseDown, false);
}

// Setup the list of icons once it is received through xmlHTTP.
IconList.prototype.onIconsReceived = function (oXMLDoc)
{
var icons = oXMLDoc.getElementsByTagName('smf')[0].getElementsByTagName('icon');
var sItems = '';

for (var i = 0, n = icons.length; i < n; i++)
sItems += '<div onmouseover="' + this.opt.sBackReference + '.onItemHover(this, true)" onmouseout="' + this.opt.sBackReference + '.onItemHover(this, false);" onmousedown="' + this.opt.sBackReference + '.onItemMouseDown(this, \'' + icons[i].getAttribute('value') + '\');" style="padding: 3px 0px 3px 0px; margin-left: auto; margin-right: auto; border: ' + this.opt.sItemBorder + '; background: ' + this.opt.sItemBackground + '"><img src="' + icons[i].getAttribute('url') + '" alt="' + icons[i].getAttribute('name') + '" title="' + icons[i].firstChild.nodeValue + '" /></div>';

setInnerHTML(this.oContainerDiv, sItems);
this.oContainerDiv.style.display = 'block';
this.bListLoaded = true;

if (is_ie)
this.oContainerDiv.style.width = this.oContainerDiv.clientWidth + 'px';

ajax_indicator(false);
}

// Event handler for hovering over the icons.
IconList.prototype.onItemHover = function (oDiv, bMouseOver)
{
oDiv.style.background = bMouseOver ? this.opt.sItemBackgroundHover : this.opt.sItemBackground;
oDiv.style.border = bMouseOver ? this.opt.sItemBorderHover : this.opt.sItemBorder;
if (this.iCurTimeout != 0)
window.clearTimeout(this.iCurTimeout);
if (bMouseOver)
this.onBoxHover(this.oClickedIcon, true);
else
this.iCurTimeout = window.setTimeout(this.opt.sBackReference + '.collapseList();', 500);
}

// Event handler for clicking on one of the icons.
IconList.prototype.onItemMouseDown = function (oDiv, sNewIcon)
{
if (this.iCurMessageId != 0)
{
ajax_indicator(true);
this.tmpMethod = getXMLDocument;
var oXMLDoc = this.tmpMethod(smf_prepareScriptUrl(this.opt.sScriptUrl) + 'action=jsmodify;topic=' + this.opt.iTopicId + ';msg=' + this.iCurMessageId + ';' + this.opt.sSessionVar + '=' + this.opt.sSessionId + ';icon=' + sNewIcon + ';xml');
delete this.tmpMethod;
ajax_indicator(false);

var oMessage = oXMLDoc.responseXML.getElementsByTagName('smf')[0].getElementsByTagName('message')[0];
if (oMessage.getElementsByTagName('error').length == 0)
{
if (this.opt.bShowModify && oMessage.getElementsByTagName('modified').length != 0)
setInnerHTML(document.getElementById('modified_' + this.iCurMessageId), oMessage.getElementsByTagName('modified')[0].childNodes[0].nodeValue);
this.oClickedIcon.getElementsByTagName('img')[0].src = oDiv.getElementsByTagName('img')[0].src;
}
}
}

// Event handler for clicking outside the list (will make the list disappear).
IconList.prototype.onWindowMouseDown = function ()
{
for (var i = aIconLists.length - 1; i >= 0; i--)
{
aIconLists[i].funcParent.tmpMethod = aIconLists[i].collapseList;
aIconLists[i].funcParent.tmpMethod();
delete aIconLists[i].funcParent.tmpMethod;
}
}

// Collapse the list of icons.
IconList.prototype.collapseList = function()
{
this.onBoxHover(this.oClickedIcon, false);
this.oContainerDiv.style.display = 'none';
this.iCurMessageId = 0;
document.body.removeEventListener('mousedown', this.onWindowMouseDown, false);
}

// Handy shortcuts for getting the mouse position on the screen - only used for IE at the moment.
function smf_mousePose(oEvent)
{
var x = 0;
var y = 0;

if (oEvent.pageX)
{
y = oEvent.pageY;
x = oEvent.pageX;
}
else if (oEvent.clientX)
{
x = oEvent.clientX + (document.documentElement.scrollLeft ? document.documentElement.scrollLeft : document.body.scrollLeft);
y = oEvent.clientY + (document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop);
}

return [x, y];
}

// Short function for finding the actual position of an item.
function smf_itemPos(itemHandle)
{
var itemX = 0;
var itemY = 0;

if ('offsetParent' in itemHandle)
{
itemX = itemHandle.offsetLeft;
itemY = itemHandle.offsetTop;
while (itemHandle.offsetParent && typeof(itemHandle.offsetParent) == 'object')
{
itemHandle = itemHandle.offsetParent;
itemX += itemHandle.offsetLeft;
itemY += itemHandle.offsetTop;
}
}
else if ('x' in itemHandle)
{
itemX = itemHandle.x;
itemY = itemHandle.y;
}

return [itemX, itemY];
}

// This function takes the script URL and prepares it to allow the query string to be appended to it.
function smf_prepareScriptUrl(sUrl)
{
return sUrl.indexOf('?') == -1 ? sUrl + '?' : sUrl + (sUrl.charAt(sUrl.length - 1) == '?' || sUrl.charAt(sUrl.length - 1) == '&' || sUrl.charAt(sUrl.length - 1) == ';' ? '' : ';');
}

var aOnloadEvents = new Array();
function addLoadEvent(fNewOnload)
{
// If there's no event set, just set this one
if (typeof(fNewOnload) == 'function' && (!('onload' in window) || typeof(window.onload) != 'function'))
window.onload = fNewOnload;

// If there's just one event, setup the array.
else if (aOnloadEvents.length == 0)
{
aOnloadEvents[0] = window.onload;
aOnloadEvents[1] = fNewOnload;
window.onload = function() {
for (var i = 0, n = aOnloadEvents.length; i < n; i++)
{
if (typeof(aOnloadEvents[i]) == 'function')
aOnloadEvents[i]();
else if (typeof(aOnloadEvents[i]) == 'string')
eval(aOnloadEvents[i]);
}
}
}

// This isn't the first event function, add it to the list.
else
aOnloadEvents[aOnloadEvents.length] = fNewOnload;
}

function smfFooterHighlight(element, value)
{
element.src = smf_images_url + '/' + (value ? 'h_' : '') + element.id + '.gif';
}

// Get the text in a code tag.
function smfSelectText(oCurElement, bActOnElement)
{
// The place we're looking for is one div up, and next door - if it's auto detect.
if (typeof(bActOnElement) == 'boolean' && bActOnElement)
var oCodeArea = document.getElementById(oCurElement);
else
var oCodeArea = oCurElement.parentNode.nextSibling;

if (typeof(oCodeArea) != 'object' || oCodeArea == null)
return false;

// Start off with my favourite, internet explorer.
if ('createTextRange' in document.body)
{
var oCurRange = document.body.createTextRange();
oCurRange.moveToElementText(oCodeArea);
oCurRange.select();
}
// Firefox at el.
else if (window.getSelection)
{
var oCurSelection = window.getSelection();
// Safari is special!
if (oCurSelection.selectAllChildren)
{
oCurSelection.selectAllChildren(oCodeArea);
}
else if (oCurSelection.setBaseAndExtent)
{
var oLastChild = oCodeArea.lastChild;
oCurSelection.setBaseAndExtent(oCodeArea, 0, oLastChild, 'innerText' in oLastChild ? oLastChild.innerText.length : oLastChild.textContent.length);
}
else
{
var curRange = document.createRange();
curRange.selectNodeContents(oCodeArea);

oCurSelection.removeAllRanges();
oCurSelection.addRange(curRange);
}
}

return false;
}

// A function needed to discern HTML entities from non-western characters.
function smc_saveEntities(sFormName, aElementNames, sMask)
{
if (typeof(sMask) == 'string')
{
for (var i = 0, n = document.forms[sFormName].elements.length; i < n; i++)
if (document.forms[sFormName].elements[i].id.substr(0, sMask.length) == sMask)
aElementNames[aElementNames.length] = document.forms[sFormName].elements[i].name;
}

for (var i = 0, n = aElementNames.length; i < n; i++)
{
if (aElementNames[i] in document.forms[sFormName])
document.forms[sFormName][aElementNames[i]].value = document.forms[sFormName][aElementNames[i]].value.replace(/&#/g, '&#38;#');
}
}

// A function used to clean the attachments on post page
function cleanFileInput(idElement)
{
// Simpler solutions work in Opera, IE, Safari and Chrome.
if (is_opera || is_ie || is_safari || is_chrome)
{
document.getElementById(idElement).outerHTML = document.getElementById(idElement).outerHTML;
}
// What else can we do? By the way, this doesn't work in Chrome and Mac's Safari.
else
{
document.getElementById(idElement).type = 'input';
document.getElementById(idElement).type = 'file';
}
}