Loads full comment list and adds some features to manipulate comment list. Doesn't work in FF, only in Opera

// ==UserScript==
// @name           GT full comments
// @namespace      Psi
// @description    Loads full comment list. 
// @include        http://www.gametrailers.com/video/*
// @include        http://gametrailers.com/video/*
// ==/UserScript==

var uw = (this.unsafeWindow) ? this.unsafeWindow : window;

function mainFunc() {

 window.show_all_comments = function(type, id, count) {
  document.getElementById('comment_block').innerHTML = '';
  document.getElementById('comments_pages').innerHTML = '';
  document.getElementById('comments_pages_bar').innerHTML = '';
  document.getElementById('comment_head_text').innerHTML = 'Loading all comments...';
  
  randNum=parseInt(Math.random()*99999999);  // cache buster
  
  $j.ajax({
   type: "GET",
   url: '/ajax/player_comments_ajaxfuncs_read.php',
   data: 'do=show_all_comments&type='+type+'&id='+id+'&count='+count,// + logged + thumbRatingNocache,
   //dataType: "html",
   error: function(){
    update_comments('');
    processCommentsFromAllPages(); 
   },
   success: function(xml){
    var searchStr = "\'";
    var replaceStr = "'";
    xml = xml.replace(/\\\'/g, replaceStr);   
    update_comments(xml, type);
   }
  });
  
  //ajaxGetCallback('/ajax/player_comments_ajaxfuncs_read.php', 'update_comments(\'', '\', \''+type+'\');', 'do=show_all_comments&type='+type+'&id='+id+'&count='+count, 'GET');
  if (!document.getElementById('affected_comment')) {
   document.getElementById('new_comment_container').innerHTML = '';
  }
 }

 window.comments_post_load_page = function(new_body, type, page, isEscape) {
  //alert('post load bleh');
  var curr_page = comments_current_page;
  if (isEscape) {
   new_body = unescape(new_body);
  }
  if (!document.getElementById(type)) {
   setTimeout('comments_post_load_page(\''+escape(new_body)+'\', \''+type+'\', '+page+', 1);', 100);
   return;
  }
  if (type != comments_current_type) {
   curr_page = eval(type+'_page');
  }
  if (page == curr_page) {
   document.getElementById(type).innerHTML = new_body;
  } else if (page == curr_page - 1) {
   document.getElementById(type+'_prev').innerHTML = new_body;
  } else if (page == curr_page + 1) {
   document.getElementById(type+'_next').innerHTML = new_body;
  }
  
  showAllCommentBarElements();
 }
 
 window.update_comments = function(new_text, type) {
  document.getElementById('comment_block').innerHTML = new_text;
  document.getElementById('comment_head_text').innerHTML = '<a href="javascript: comments_current_page = 1;comments_load_page(\''+type+'\', 1);">Show pages</a>';
  document.getElementById('comments_pages').innerHTML = '';
  document.getElementById('comments_pages_bar').innerHTML = '';
  
  sortOrderReverse = false;
  sortByRating = false;
  commonCommentBarElements();
 }

 show_all_comments('movies', uw.mov_id , 1);
}

function processCommentsFromAllPages(){
 for (var i = 1; i < 100; i++){
  customCommentsLoadPage(i);
 }
}

/** Loading comments from a given page **/
function customCommentsLoadPage(page) {
 $j.ajax({
  type: "GET",
  url: '/ajax/player_comments_ajaxfuncs_read.php',
  data: 'do=get_list_page&type=movies&id=' + uw.mov_id + '&page=' + page + '&count=10',// + logged + thumbRatingNocache,
  dataType: "html",
  success: function(xml){
   var searchStr = "\'";
   var replaceStr = "'";
   xml = xml.replace(/\\\'/g, replaceStr);
   var commentBlock = $j('#comment_block', xml);
   var commentContainers = $j('.comment_container.clearfix', commentBlock);
   $j.each(commentContainers, function(indx, item){
    $j('#comment_block').append(item);
   });
  }
 });
}

/** Process recieved comments **/
function customCommentsLoadPageRecieve(newBody, type, page, isEscape){
 //window.alert(newBody);
 
 $j('#comment_block').append( $j('.comment_container', newBody) );
}

/** Loading comments from old server function **/
function showAllCommentBarElements(){
 $j('.comment_head_text_left a').replaceWith('<a href="javascript: show_all_comments(\'movies\', ' + uw.mov_id + ',' + 1 + ');">Show all</a>');
}

function commonCommentBarElements(){
 var commentHeadText = $j('.comment_head_text_left');
 
 var filterStr = '';
 if (filterUsername){
  filterStr = 'Show all';
 }
 
 var headStr = '<span id="sortingCommentsBar"></span>';
 
 commentHeadText.append(headStr);
 commonCommentBarElementsUpdate();
}

function commonCommentBarElementsUpdate(){
 var sortingCommentsBar = $j('#sortingCommentsBar');
 sortingCommentsBar[0].innerHTML = '';

 var ratingLabel = 'Rating';
 var timeLabel = 'Time';
 
 if (sortByRating){
  ratingLabel = '<u>' + ratingLabel + '</u>';
 } else {
  timeLabel = '<u>' + timeLabel + '</u>';
 } 
 
 var ratingStr = '<a href="javascript: sortComments(true);">' + ratingLabel + '</a>';
 var timeStr =  '<a href="javascript: sortComments(false);">' + timeLabel + '</a>';

 var arrowURL = '<img src="http://www.google.com/help/hc/images/sites_icon_arrow_down_small.gif"/>';
 if (sortOrderReverse){
  arrowURL = '<img src="http://www.google.com/help/hc/images/sites_icon_arrow_up_small.gif"/>';
 }
 
 var filterStr = ' || Filter by: ';
 
 if (filterUsername){
  filterStr += ' <a href="javascript: revealAllComments();">Show all</a>';
 } else {
  filterStr += ' <a href="javascript: showUserRelatedComments();">My username</a>';
 } 
 
 var resultStr = ' || Sort by: ' + ratingStr + ' ' + arrowURL + ' ' + timeStr + filterStr;
 sortingCommentsBar.append(resultStr);
}

var sortOrderReverse = false;
var sortByRating = false;

function sortComments( rating){

 if (rating && rating != sortByRating){
  sortOrderReverse = false;
 }

 var mylist = $j('#comment_block');
 var listitems = mylist.children('.comment_container').get();
 
 listitems.sort(function(a, b) {
  if (rating){
   var compA = parseInt($j('.comment_thumbs_container', a).text().split('[')[1].split(']')[0]);
   var compB = parseInt($j('.comment_thumbs_container', b).text().split('[')[1].split(']')[0]);
  } else {
   var compA = parseInt(a.id.split('comment_')[1]);
   var compB = parseInt(b.id.split('comment_')[1]);
  }
  
  return (compA > compB) ? -1 : (compA < compB) ? 1 : 0;
 });

 
 if (sortOrderReverse){
  listitems.reverse();
 }
 sortOrderReverse = !sortOrderReverse;
 
 mylist.empty();
 mylist.append(listitems);

 sortByRating = rating;
 commonCommentBarElementsUpdate();
}

var filterUsername = false;

function revealAllComments(){
 var mylist = $j('#comment_block');
 var listitems = mylist.children('.comment_container').get();

 $j.each(listitems, function(idx, itm) {
  itm.style.display = '';
 });
 
 filterUsername = false;
 commonCommentBarElementsUpdate();
}

/** Filter comments by logged user **/
function showUserRelatedComments(){
 var userName = $j('.userinfo_text_title a')[0].innerHTML.split(' ')[1];
 
 var mylist = $j('#comment_block');
 var listitems = mylist.children('.comment_container').get();
 
 $j.each(listitems, function(idx, itm) {
  var commentName = $j('.comment_username a', itm)[0].innerHTML.split(' ')[9];
  var commentText = $j('.comment_text', itm)[0].innerHTML;
 
  var indexof = commentText.indexOf(userName);
 
  if ( commentName != userName && indexof < 0){
   itm.style.display = 'none';
  }
 });
 
 filterUsername = true;
 commonCommentBarElementsUpdate();
}

/** Entry point **/
window.addEventListener("load", mainFunc, false);