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// ==UserScript==
// @name MetaFilter Scroll Tag
// @namespace http://plutor.org/
// @description Tracks your last-read comment in threads, and allows you to jump back to it easily.
// @include http://metafilter.com/*
// @include http://*.metafilter.com/*
// ==/UserScript==
//
// OPERA USERS:
// This script has been tested as working in Opera 9.26 for Windows. You will need
// to also add the Greasemonkey builtin function emulator script available here:
// <http://userjs.org/scripts/browser/enhancements/aa-gm-functions>
//
// DONE 2011-12-07
// * Compressed cookie storage
//
// TODO
// * Use jQuery more widely
// * Mark the last comment if scrolled to the bottom (Opera)
// * Indicate marked comment(s) for "recent activity" page
// * Allow mark moving on "recent activity" page
// Content Scope
var script = document.createElement('script');
script.appendChild(document.createTextNode('('+ everything.toString() +')();'));
script.setAttribute("type", "application/javascript");
(document.body || document.head || document.documentElement).appendChild(script);
function everything() {
// ============================================================================
// Intrepid MeFites who are dissatisfied with the markers and jumpers I have
// provided can use these objects to change them. Making either one wider than
// 75 pixels is not advised, as that is how wide the left border is on
// MetaFilter. You may use this website to create the base64-encoded URLs:
// <http://www.sveinbjorn.org/dataurlmaker>s
//
var markerconf = {
width: '35', // pixels
height: '15',
img: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACMAAAAPCAYAAABut3YUAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9gDBA4sJYLQS4YAAAAddEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIFRoZSBHSU1Q72QlbgAAAQ5JREFUSMfN1TFqhEAUxvF%2FYCEICaSzMGAKU60oOUGqbezSWbjX2ENs6xHiAewEm5ArRCyFKJmQUpFJ6aYKOJJkt3An%2B2CKYRjej2H4HsBO43oFbH6pM2BXVRU6SghBFEV10zT3QP0npiiKoyAMw8BxnL0gBbNareogCF7mxmRZdp3n%2Bd2%2BF1qML5mm%2BR7H8dPcGN%2F3H8Z7y7JIksSOouh5DFIwUkoJCB3%2F5yeQgun7XgJvaKopSMF0XacV8w3abrd2GIaPCqZt28%2ByLD90YoQQbDabGlgrmGEYzl3XvZq7oed5B%2BXOYnJ%2BCdz8VwBOMbfAeu7GUsqLQ5JYwaRpugSWx0jgQ0bCSc0mTmlqfwF0xNik%2FyQ5bQAAAABJRU5ErkJggg%3D%3D'
};
var jumperconf = {
width: '15',
height: '35',
img: 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAjCAYAAABLuFAHAAAAAXNSR0IArs4c6QAAAAlwSFlzAAALEwAACxMBAJqcGAAAAAd0SU1FB9gDBA8IJuvzka0AAAAddEVYdENvbW1lbnQAQ3JlYXRlZCB3aXRoIFRoZSBHSU1Q72QlbgAAAYJJREFUSMel1LFugkAYwPE%2FaKpEu3UzOWOYTTp2c%2BniO%2FAGDr6Kmy%2Fg4GuUJ2jqTCMaxi4KKJhyXdBoyx1SSAgH3%2F2%2B7wMODEDyz60J4HleZWjbNiY1tuZ5sFqtmE6nn0KIL9Xk7Xb7NJvNBsPh8BYDjMfj9%2Fl8%2FqHCk8nkGRj8qQwgpZTAtwpnWZYVtg1wOp1SIFbhPF6M0zRNgUiFkyRJynCownm8GB%2BPx6SkshofDoczPq8643qcx5VY23Ycx6VY2XYeL8ZRFCUlldU4DENt5f1%2Bn9yD5dXDuhzzeDHe7XbaFZbHi3GWZaZhGE3NV2gqMdACuhrcKsOPGtzW4XYJrlW5Vaeytu0G8KDBDR3WLk%2Bg%2BD1bloVt26%2BdTudFJaMo6lqWdTk3AFnnp%2B8HQVAJ5vN9Exg5jnN3giAIcBzHB0ZGfq0vhHhbLBb9Xq9XCjebzQjwjauYNsFvWJS8L4RYu64rPc%2B77K7rSiHEGuiX3dZNgirwJsFyuawMLwkAVwd%2FAGRf4dA3CSb%2BAAAAAElFTkSuQmCC',
maxopacity: 1.0, // Out of 1.0
fadeindur: 0.25 // Seconds
};
var cookie_limit = 4096; // Maximum cookie size
//
// ============================================================================
var thread_id;
var markedcomment;
var comments = new Array();
var lastscroll;
var nextshow;
var markerdat;
//
// mst_init
//
// Determines if this is a thread or not, and sets everything up
//
function mst_init() {
thread_id = mst_threadUniqName(location.href);
if (thread_id) {
// This is a thread
mst_initThread();
// Watch for new comments
mst_init_newcomments();
} else if (mst_isRecentActivity(location.href)) {
mst_initRecentActivity();
} else {
// This is not a thread
mst_findThreads();
}
}
//
// mst_initThread
//
// Initializes everything if this is a thread view
//
function mst_initThread() {
mst_initComments();
mst_loadValue();
mst_showJumper(0);
document.addEventListener('scroll', function() { mst_hideJumper() }, false);
document.addEventListener('scroll', function() { mst_findTopComment() }, false);
mst_findTopComment(); // Just to get us started
// Focusing the comment textarea should set the tag to the bottom
var newcomment = document.getElementById('comment');
if (newcomment) {
var y = mst_documentHeight();
newcomment.addEventListener('focus', function() { mst_findTopComment(y) }, false);
}
}
function mst_init_newcomments() {
$("#newcomments").bind( 'mefi-comments', mst_initComments );
}
//
// mst_documentHeight
//
// Returns the total height of the entire document, in pixels
//
function mst_documentHeight() {
if (window.scrollMaxY != null) {
// Firefox
return window.scrollMaxY + window.innerHeight;
} else if (document.documentElement.clientHeight) {
// Opera
return document.documentElement.clientHeight;
}
}
//
// mst_scrollLocation
//
// Returns the scroll position of the top of the screen, in pixels
//
function mst_scrollLocation() {
if (window.scrollY != null) {
// Firefox
return window.scrollY;
} else if (document.body.scrollTop) {
// Opera
return document.body.scrollTop;
}
}
//
// mst_scrollBottom
//
// Returns the scroll position of the bottom of the screen, in pixels
//
function mst_scrollBottom() {
return mst_scrollLocation() + window.innerHeight;
}
//
// mst_threadUniqName
//
// Argument: url = the url of the thread
//
// Returns a uniq name of the thread: "$subdomain$threadid"
//
function mst_threadUniqName(url) {
var urlm = url.match(/^http:\/\/([^\/]*\.)?metafilter.com\/(\d+)\//);
if (urlm)
return urlm[1] + urlm[2];
return "";
}
//
// mst_initComments
//
// Finds all of the comment DOM objects and puts them into an array
// for easy future use
//
function mst_initComments() {
var alldivs = document.getElementsByTagName('div');
for (var i=0; i<alldivs.length; ++i) {
if (alldivs[i].className.match(/comments/) &&
alldivs[i].id != 'prevDiv' && alldivs[i].id != 'prevDiv2' &&
alldivs[i].innerHTML.match(/posted by/)) {
comments.push(alldivs[i]);
} // is a comment
} // loop divs
}
//
// mst_findThreads
//
// Finds all of the threads listed on the page, and replaces the '(mm new)'
// listings with ones that are more accurate.
//
function mst_findThreads() {
var alldivs = document.getElementsByTagName('span');
for (var i=0; i<alldivs.length; ++i) {
if (alldivs[i].className.match(/smallcopy/) &&
alldivs[i].innerHTML.match(/posted by/)) {
var metabits = alldivs[i].childNodes;
// First pass - delete 'mm new' links
for (var j=0; j<metabits.length; ++j) {
var bit = metabits[j];
var m;
if (bit.tagName && bit.tagName.toLowerCase() == 'b' &&
bit.innerHTML.match(/\d+ new/)) {
bit.parentNode.removeChild(bit);
}
} // loop bits of info
// Second pass - add new 'mm new' links
for (var j=0; j<metabits.length; ++j) {
var bit = metabits[j];
var m;
if ( bit.tagName && bit.tagName.toLowerCase() == 'a' &&
(m = bit.innerHTML.match(/^(\d+) (comment|answer)s?$/)) ) {
var total = m[1];
var tid = mst_threadUniqName(bit.href);
if (tid) {
var marked = mst_getValue(tid);
var newc = total - marked.num;
if (!marked) {
newc = total;
marked.id = '';
}
if (newc > 0) {
// There are new comments
var newnew = document.createElement('b');
newnew.style.color = 'white';
newnew.style.marginLeft = '0.4em';
newnew.innerHTML = '(<a href="'
+ bit.href
+ '#'
+ marked.id
+ '" target="_self" class="new">'
+ newc
+ ' new</a>)';
bit.parentNode.insertBefore( newnew,
bit.nextSibling );
}
}
} // is a comments link
} // loop bits of info
} // is a thread
} // loop divs
}
//
// mst_loadValue
//
// Argument: t = thread id (optional, defaults to global thread_id)
//
// Gets the comment id for the thread, finds the first comment after the
// anchor with that name, and marks it
//
function mst_loadValue(t) {
if (!t) t = thread_id;
var comment = mst_getValue(t);
// Find the anchor
var anchors = document.getElementsByTagName('a');
for (var i=0; i<anchors.length; ++i) {
if (comment && anchors[i].name == comment.id) {
// Find the comment div after the anchor
var a = anchors[i];
while (a && (!a.className || !a.className.match(/comments/) &&
a.id != 'prevDiv' && a.id != 'prevDiv2')) {
a = a.nextSibling;
}
if (a) {
markedcomment = a;
mst_mark(a);
}
break;
}
}
}
//
// mst_findTopComment
//
// Argument: ysc = number of pixels from the top (optional, defaults to current position)
// Argument: dropped = is this is a search caused by a dropped marker?
//
// If dropped is false, finds the first comment below the scroll point. If it's
// below the currently marked comment, it marks it.
// If dropped is true, finds the last comment above the scroll point and marks it.
//
function mst_findTopComment(ysc, dropped) {
if (ysc == null) ysc = mst_scrollLocation();
var topc;
if (!dropped) {
// Scroll to the last comment if we're scrolled to the bottom of the document
if (ysc >= window.scrollMaxY)
ysc = mst_documentHeight();
// Don't do anything if this is the same place we already were
if (ysc == lastscroll) return;
}
lastscroll = ysc;
// Assuming the comments array is in order
for (var i=0; i<comments.length; ++i) {
var c = comments[i];
var cy = c.offsetTop;
if (!topc)
topc = c;
if (dropped) {
// Trying to find the last comment above ysc
if ( cy <= ysc ) {
topc = c;
} else {
break;
}
} else {
// Trying to find the first comment below ysc
topc = c;
if ( cy >= ysc ) {
break;
}
}
}
if (topc && (dropped || !markedcomment || markedcomment.offsetTop < topc.offsetTop)) {
mst_mark(topc);
}
}
//
// mst_mark
//
// Argument: c = DOM object of the comment to mark
//
// Moves the marker to the comment indicated, and saves the comment id
//
function mst_mark(c) {
var marker = document.getElementById("mst_marker");
if (!marker) {
// Create it
marker = document.createElement('div');
marker.id = "mst_marker";
marker.style.backgroundImage = 'url(' + markerconf.img + ')';
marker.style.backgroundRepeat = 'no-repeat';
marker.style.width = "" + markerconf.width + 'px';
marker.style.height = "" + markerconf.height + 'px';
marker.style.position = 'absolute';
marker.style.cursor = 'move';
document.body.appendChild(marker);
marker.addEventListener('mousedown', mst_grabMarker, false);
}
// Mark - top aligned
marker.style.top = "" + (c.offsetTop) + "px";
marker.style.left = "" + (75/2 - markerconf.width/2) + "px";
markedcomment = c;
var comment_id = mst_commentIdOf(c);
var comment_num = mst_commentNumOf(c);
// Save
if (thread_id && comment_id && comment_num) {
mst_setValue(thread_id, comment_id, comment_num);
}
}
//
// mst_commentIdOf
//
// Argument: c = DOM object of the comment
//
// Returns the comment_id pulled from the name of the anchor immediately
// before the given comment
//
function mst_commentIdOf(c) {
// Find the anchor right before the comment div
while (c && (!c.tagName || c.tagName.toLowerCase() != 'a')) {
c = c.previousSibling;
}
return (c) ? c.name : null;
}
//
// mst_commentIdOf
//
// Argument: c = DOM object of the comment
//
// Returns the index(+1) of the given comment in the comments array
//
function mst_commentNumOf(c) {
for (var i=0; i<comments.length; ++i) {
if (comments[i] == c) {
return i+1;
}
}
return 0;
}
//
// mst_showJumper
//
// Argument: fade = fraction from 0.0 to 1.0, defaults to 0
//
// Show the jumper with an opacity of $fade, calls itself with fade incremented
// by 0.1 until it's fully visible.
//
function mst_showJumper(fade) {
if (!markedcomment) return;
var winbottom = mst_scrollBottom();
var commenty = markedcomment.offsetTop;
if (commenty > winbottom) {
// Show it
var jumper = document.getElementById("mst_jumper");
if (!jumper) {
// Create it
jumper = document.createElement('div');
jumper.id = "mst_jumper";
jumper.style.position = 'absolute';
jumper.style.backgroundImage = 'url(' + jumperconf.img + ')';
jumper.style.backgroundRepeat = 'no-repeat';
jumper.style.height = "" + jumperconf.height + "px";
jumper.style.width = "" + jumperconf.width + "px";
jumper.style.cursor = 'pointer';
var grabber = document.createElement('div');
grabber.id = "mst_jumper_grabber";
grabber.style.width = "" + jumperconf.width + "px";
grabber.style.height = "" + (jumperconf.height / 3) + "px";
grabber.style.position = 'relative';
grabber.style.top = "0px";
grabber.style.left = "0px";
grabber.style.cursor = "move";
jumper.appendChild(grabber);
document.body.appendChild(jumper);
jumper.addEventListener('mousedown', mst_grabMarker, false);
jumper.addEventListener('click', mst_useJumper, false);
}
jumper.style.display = 'block';
jumper.style.top = "" + (winbottom - jumperconf.height - 5) + "px";
jumper.style.left = "" + (75/2 - jumperconf.width/2) + "px";
if (!fade || fade < 0)
fade = 0;
// Amount to fade in by = 25msec / fadeindur;
fade += (0.025 / jumperconf.fadeindur);
if (fade < jumperconf.maxopacity) {
jumper.style.MozOpacity = fade;
jumper.style.opacity = fade;
nextshow = setTimeout( mst_showJumper, 25, fade );
} else {
jumper.style.MozOpacity = jumperconf.maxopacity;
jumper.style.opacity = jumperconf.maxopacity;
}
}
}
//
// mst_useJumper
//
// Jump to the marked comment. Called when the jumper is clicked.
//
function mst_useJumper() {
// Go to the marked comment
var id = mst_commentIdOf(markedcomment);
if (id) location.href = "#" + id;
}
//
// mst_hideJumper
//
// Argument: keephidden = Don't schedule the showJumper call (defaults to 0)
//
// Hide the jumper immediately, and schedule a jumper re-show. Keeps only a single
// re-show timer so it'll keep pushing it back until scrolling stops.
//
function mst_hideJumper(keephidden) {
var jumper = document.getElementById("mst_jumper");
if (jumper) {
jumper.style.display = 'none';
}
if (nextshow) {
clearTimeout(nextshow);
nextshow = null;
}
if (!keephidden) nextshow = setTimeout( mst_showJumper, 350, 0 );
}
//
// mst_grabMarker
//
// Called when the marker or jumper are first grabbed for moving
//
function mst_grabMarker(e) {
var grabber = document.getElementById('mst_marker');
// Remove the mousedown event
grabber.removeEventListener('mousedown', mst_grabMarker, false);
// Add mousemove/mouseup events
document.body.addEventListener('mousemove', mst_moveMarker, false);
document.body.addEventListener('mouseup', mst_dropMarker, false);
// Record where we started
markerdat = {
x: e.pageX,
y: e.pageY,
g: grabber,
init: 0
};
e.preventDefault();
return false;
}
//
// mst_moveMarker
//
// Called when a grabbed marker is moved. Moves the marker to where the mouse is,
// and tracks the location in the markerdat object.
//
function mst_moveMarker(e) {
var x = e.pageX;
var y = e.pageY;
// Is this the initial movement
if (!markerdat.init) {
// Is initial movement sufficient?
if ( Math.abs(markerdat.x-x) + Math.abs(markerdat.y-y) > 15 ) {
// Hide the jumper, don't start redisplay timer
markerdat.init = 1;
mst_hideJumper(1);
}
}
// Show the marker under the mouse
if (markerdat.init) {
var marker = document.getElementById('mst_marker');
marker.style.MozOpacity = '0.7';
marker.style.opacity = '0.7';
marker.style.top = "" + (y - markerconf.height/2) + "px";
marker.style.left = "" + (x - markerconf.width/2) + "px";
}
e.preventDefault();
return false;
}
//
// mst_dropMarker
//
// Called when a grabbed marker is dropped. Finds the nearest comment, and marks it.
//
function mst_dropMarker(e) {
// Did we ever have movement?
if (markerdat.init) {
var marker = document.getElementById('mst_marker');
marker.style.MozOpacity = '1.0';
marker.style.opacity = '1.0';
// Record the new marked location
mst_findTopComment(e.pageY, 1);
}
mst_showJumper(0);
// Re-add the mousedown
markerdat.g.addEventListener('mousedown', mst_grabMarker, false);
// Remove mousemove/mouseup events
document.body.removeEventListener('mousemove', mst_moveMarker, false);
document.body.removeEventListener('mouseup', mst_dropMarker, false);
}
//
// mst_isRecentActivity
//
function mst_isRecentActivity(url) {
return (url.indexOf("http://www.metafilter.com/contribute/activity/") == 0);
}
function mst_initRecentActivity() {
var alldivs = document.getElementsByTagName('div');
for (var i=0; i<alldivs.length; ++i) {
if (alldivs[i].style.fontWeight == 'bold' &&
(m = alldivs[i].innerHTML.match(/(\d+) total comments.*most recent comment/))) {
var total = m[1];
var thisdiv = alldivs[i];
var metabits = thisdiv.childNodes;
for (var j=0; j<metabits.length; ++j) {
var bit = metabits[j]
if ( bit.tagName && bit.tagName.toLowerCase() == 'a' ) {
var tid = mst_threadUniqName(bit.href);
var url = bit.href.replace(/#\d+$/, '');
if (tid) {
var marked = mst_getValue(tid);
var newc = total - marked.num;
if (!marked) {
newc = total;
marked.id = '';
}
if (newc > 0) {
// There are new comments
var newdiv = document.createElement('div');
newdiv.style.fontWeight = 'bold';
newdiv.innerHTML = thisdiv.innerHTML.replace(/ total comments\..*/, "") +
" total comments. " + newc + " since ";
var newcount = document.createElement('a');
newcount.target = bit.target;
newcount.href = url + '#' + marked.id;
newcount.innerHTML = 'the last comment you read';
newdiv.appendChild( newcount );
newdiv.innerHTML += ". " +
thisdiv.innerHTML.replace(/.* total comments\./, "")
thisdiv.parentNode.replaceChild(newdiv, thisdiv);
}
break;
}
} // is a comment link
}
} // is a thread header
}
}
//
// get/set helper functions
//
function mst_getValue(thread_id) {
var subsite, thread_num;
var parts = thread_id.match(/^([^\.]+)\.(\d+)$/);
if (parts) {
subsite = parts[1];
thread_num = parts[2];
} else {
return
}
// Get the cookie for this subsite
var cdata = Cookie.get("mst_" + subsite);
var comment_id;
var comment_num;
if (cdata) {
// Find the part for this thread, if it's there
var thread_num = mst_toBase64(thread_num, 4);
for (var i = 0; i < cdata.length; i += 10) {
if (cdata.substr(i, 4) == thread_num) {
comment_id = cdata.substr(i+4, 4);
comment_num = cdata.substr(i+8, 2);
break;
}
}
if (comment_id && comment_num) {
comment_id = mst_fromBase64(comment_id);
comment_num = mst_fromBase64(comment_num);
}
}
// Fallback and remove those cookies
// We can probably remove this at some point
if (!comment_id || !comment_num) {
comment_id = Cookie.get("mst_" + thread_id);
comment_num = Cookie.get("mst_" + thread_id + "num");
// Remove the old cookie
Cookie.unset("mst_" + thread_id, undefined, "metafilter.com");
Cookie.unset("mst_" + thread_id + "num", undefined, "metafilter.com");
if (comment_id && comment_num) { // Force a save
mst_setValue(thread_id, comment_id, comment_num);
}
}
return { "id": comment_id, "num": comment_num };
}
function mst_setValue(thread_id, comment_id, comment_num) {
// Separate the subsite and thread_id
var subsite, thread_num;
var parts = thread_id.match(/^([^\.]+)\.(\d+)$/);
if (parts) {
subsite = parts[1];
thread_num = parts[2];
} else {
return
}
// uuencode the three parts
thread_num = mst_toBase64(thread_num, 4);
comment_id = mst_toBase64(comment_id, 4);
comment_num = mst_toBase64(comment_num, 2);
// Get the cookie for this subsite
var cdata = Cookie.get("mst_" + subsite);
if (cdata) {
// Remove the part for this thread, if it's there
for (var i = 0; i < cdata.length; i += 10) {
if (cdata.substr(i, 4) == thread_num) {
cdata = cdata.substr(0, i) + cdata.substr(i+10);
break;
}
}
// Add this thread to the front
cdata = thread_num + comment_id + comment_num + cdata;
} else {
cdata = thread_num + comment_id + comment_num;
}
// Trim
// The cookie limit includes the cookie name
if (cdata.length > cookie_limit - subsite.length - 5) {
cdata = cdata.substr(0, Math.floor(cookie_limit/10)*10);
}
Cookie.set("mst_" + subsite, cdata, 10*365*24, undefined, "metafilter.com");
}
var base64chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_/=";
function mst_toBase64(n, size) {
var result = "";
for (var i = 0; i < size; ++i) {
var digit = n % 64;
result = base64chars.charAt(digit) + result;
n = (n - digit) / 64;
}
return result;
}
function mst_fromBase64(n) {
var result = 0;
for (var i = 0; i < n.length; ++i) {
var digit = n.charAt(n.length-i-1); // Get the nth from the last character
var dval = base64chars.indexOf(digit) * Math.pow(64, i);
result += dval;
}
return result;
}
/*****************************************************************************
* Modified from cookie-js 0.4 by Maxime Haineault (max@centdessin.com)
* <http://code.google.com/p/cookie-js/>
*/
Cookie = {
/** Get a cookie's value */
get: function(key) {
// Still not sure that "[a-zA-Z0-9.()=|%/_]+($|;)" match *all* allowed characters in cookies
tmp = document.cookie.match((new RegExp(key +'=[a-zA-Z0-9.()=|%/_]+($|;)','g')));
if(!tmp || !tmp[0]) return null;
else return unescape(tmp[0].substring(key.length+1,tmp[0].length).replace(';','')) || null;
},
/** Set a cookie */
set: function(key, value, ttl, path, domain, secure) {
cookie = [key+'='+ escape(value),
'path='+ ((!path || path=='') ? '/' : path),
'domain='+ ((!domain || domain=='')? window.location.host : domain)];
if (ttl) cookie.push('Expires='+ Cookie.hoursToExpireDate(ttl));
if (secure) cookie.push('secure');
return document.cookie = cookie.join('; ');
},
/** Unset a cookie */
unset: function(key, path, domain) {
path = (!path || typeof path != 'string') ? '' : path;
domain = (!domain || typeof domain != 'string') ? '' : domain;
if (Cookie.get(key)) Cookie.set(key, '', 'Thu, 01-Jan-70 00:00:01 GMT', path, domain);
},
/** Return GTM date string of "now" + time to live */
hoursToExpireDate: function(ttl) {
if (parseInt(ttl) == 'NaN' ) return '';
else {
now = new Date();
now.setTime(now.getTime() + (parseInt(ttl) * 60 * 60 * 1000));
return now.toGMTString();
}
}
}
/****************************************************************************/
//
// Start by initializing
//
mst_init();
// end of content scope
}
