functions.js

   1 var hotkeys_enabled = true;
   2 var debug_mode_enabled = false;
   3 var xmlhttp_rpc = Ajax.getTransport();
   4
   5 /* add method to remove element from array */
   6
   7 Array.prototype.remove = function(s) {
   8         for (var i=0; i < this.length; i++) {
   9                 if (s == this[i]) this.splice(i, 1);
  10         }
  11 }
  12
  13 function browser_has_opacity() {
  14         return navigator.userAgent.match("Gecko") != null ||
  15                 navigator.userAgent.match("Opera") != null;
  16 }
  17
  18 function is_msie() {
  19         return navigator.userAgent.match("MSIE");
  20 }
  21
  22 function is_opera() {
  23         return navigator.userAgent.match("Opera");
  24 }
  25
  26 function is_khtml() {
  27         return navigator.userAgent.match("KHTML");
  28 }
  29
  30 function is_safari() {
  31         return navigator.userAgent.match("Safari");
  32 }
  33
  34 function exception_error(location, e, silent) {
  35         var msg;
  36
  37         if (e.fileName) {
  38                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  39
  40                 msg = "Exception: " + e.name + ", " + e.message +
  41                         "\nFunction: " + location + "()" +
  42                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  43
  44         } else {
  45                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  46         }
  47
  48         debug("<b>EXCEPTION: " + msg + "</b>");
  49
  50         if (!silent) {
  51                 alert(msg);
  52         }
  53 }
  54
  55 function disableHotkeys() {
  56         hotkeys_enabled = false;
  57 }
  58
  59 function enableHotkeys() {
  60         hotkeys_enabled = true;
  61 }
  62
  63 function xmlhttp_ready(obj) {
  64         return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
  65 }
  66
  67 function open_article_callback() {
  68         if (xmlhttp_rpc.readyState == 4) {
  69                 try {
  70
  71                         if (xmlhttp_rpc.responseXML) {
  72                                 var link = xmlhttp_rpc.responseXML.getElementsByTagName("link")[0];
  73                                 var id = xmlhttp_rpc.responseXML.getElementsByTagName("id")[0];
  74
  75                                 if (link) {
  76                                         window.open(link.firstChild.nodeValue, "_blank");
  77
  78                                         if (id) {
  79                                                 id = id.firstChild.nodeValue;
  80                                                 if (!document.getElementById("headlinesList")) {
  81                                                         window.setTimeout("toggleUnread(" + id + ", 0)", 100);
  82                                                 }
  83                                         }
  84                                 }
  85                         }
  86
  87                 } catch (e) {
  88                         exception_error("open_article_callback", e);
  89                 }
  90         }
  91 }
  92
  93 function logout_callback() {
  94         var container = document.getElementById('notify');
  95         if (xmlhttp.readyState == 4) {
  96                 try {
  97                         var date = new Date();
  98                         var timestamp = Math.round(date.getTime() / 1000);
  99                         window.location.href = "tt-rss.php";
 100                 } catch (e) {
 101                         exception_error("logout_callback", e);
 102                 }
 103         }
 104 }
 105
 106 function notify_callback() {
 107         var container = document.getElementById('notify');
 108         if (xmlhttp.readyState == 4) {
 109                 container.innerHTML=xmlhttp.responseText;
 110         }
 111 }
 112
 113 function rpc_notify_callback() {
 114         var container = document.getElementById('notify');
 115         if (xmlhttp_rpc.readyState == 4) {
 116                 container.innerHTML=xmlhttp_rpc.responseText;
 117         }
 118 }
 119
 120 function param_escape(arg) {
 121         if (typeof encodeURIComponent != 'undefined')
 122                 return encodeURIComponent(arg);
 123         else
 124                 return escape(arg);
 125 }
 126
 127 function param_unescape(arg) {
 128         if (typeof decodeURIComponent != 'undefined')
 129                 return decodeURIComponent(arg);
 130         else
 131                 return unescape(arg);
 132 }
 133
 134 function delay(gap) {
 135         var then,now;
 136         then=new Date().getTime();
 137         now=then;
 138         while((now-then)<gap) {
 139                 now=new Date().getTime();
 140         }
 141 }
 142
 143 var notify_hide_timerid = false;
 144
 145 function hide_notify() {
 146         var n = document.getElementById("notify");
 147         if (n) {
 148                 n.style.display = "none";
 149         }
 150 }
 151
 152 function notify_real(msg, no_hide, n_type) {
 153
 154         var n = document.getElementById("notify");
 155         var nb = document.getElementById("notify_body");
 156
 157         if (!n || !nb) return;
 158
 159         if (notify_hide_timerid) {
 160                 window.clearTimeout(notify_hide_timerid);
 161         }
 162
 163         if (msg == "") {
 164                 if (n.style.display == "block") {
 165                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 166                 }
 167                 return;
 168         } else {
 169                 n.style.display = "block";
 170         }
 171
 172         /* types:
 173
 174                 1 - generic
 175                 2 - progress
 176                 3 - error
 177                 4 - info
 178
 179         */
 180
 181         if (typeof __ != 'undefined') {
 182                 msg = __(msg);
 183         }
 184
 185         if (n_type == 1) {
 186                 n.className = "notify";
 187         } else if (n_type == 2) {
 188                 n.className = "notifyProgress";
 189                 msg = "<img src='images/indicator_white.gif'> " + msg;
 190         } else if (n_type == 3) {
 191                 n.className = "notifyError";
 192                 msg = "<img src='images/sign_excl.png'> " + msg;
 193         } else if (n_type == 4) {
 194                 n.className = "notifyInfo";
 195                 msg = "<img src='images/sign_info.png'> " + msg;
 196         }
 197
 198 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 199
 200         nb.innerHTML = msg;
 201
 202         if (!no_hide) {
 203                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 204         }
 205 }
 206
 207 function notify(msg, no_hide) {
 208         notify_real(msg, no_hide, 1);
 209 }
 210
 211 function notify_progress(msg, no_hide) {
 212         notify_real(msg, no_hide, 2);
 213 }
 214
 215 function notify_error(msg, no_hide) {
 216         notify_real(msg, no_hide, 3);
 217
 218 }
 219
 220 function notify_info(msg, no_hide) {
 221         notify_real(msg, no_hide, 4);
 222 }
 223
 224 function printLockingError() {
 225         notify_info("Please wait until operation finishes.");
 226 }
 227
 228 function hotkey_handler(e) {
 229
 230         try {
 231
 232                 var keycode;
 233                 var shift_key = false;
 234
 235                 try {
 236                         shift_key = e.shiftKey;
 237                 } catch (e) {
 238
 239                 }
 240
 241                 if (!hotkeys_enabled) return;
 242
 243                 if (window.event) {
 244                         keycode = window.event.keyCode;
 245                 } else if (e) {
 246                         keycode = e.which;
 247                 }
 248
 249                 if (keycode == 82) { // r
 250                         return scheduleFeedUpdate(true);
 251                 }
 252
 253                 if (keycode == 83) { // s
 254                         return displayDlg("search", getActiveFeedId());
 255                 }
 256
 257                 if (keycode == 85) { // u
 258                         if (getActiveFeedId()) {
 259                                 return viewfeed(getActiveFeedId(), "ForceUpdate");
 260                         }
 261                 }
 262
 263                 if (keycode == 65) { // a
 264                         return toggleDispRead();
 265                 }
 266
 267                 var feedlist = document.getElementById('feedList');
 268
 269                 if (keycode == 74) { // j
 270                         var feed = getActiveFeedId();
 271                         var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 272                         if (new_feed) viewfeed(new_feed, '');
 273                 }
 274
 275                 if (keycode == 75) { // k
 276                         var feed = getActiveFeedId();
 277                         var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 278                         if (new_feed) viewfeed(new_feed, '');
 279                 }
 280
 281                 if (keycode == 78 || keycode == 40) { // n, down
 282                         if (typeof moveToPost != 'undefined') {
 283                                 return moveToPost('next');
 284                         }
 285                 }
 286
 287                 if (keycode == 80 || keycode == 38) { // p, up
 288                         if (typeof moveToPost != 'undefined') {
 289                                 return moveToPost('prev');
 290                         }
 291                 }
 292
 293                 if (keycode == 68 && shift_key) { // d
 294                         if (!debug_mode_enabled) {
 295                                 document.getElementById('debug_output').style.display = 'block';
 296                                 debug('debug mode activated');
 297                         } else {
 298                                 document.getElementById('debug_output').style.display = 'none';
 299                         }
 300
 301                         debug_mode_enabled = !debug_mode_enabled;
 302                 }
 303
 304                 if (keycode == 190 && shift_key) { // >
 305                         viewFeedGoPage(1);
 306                 }
 307
 308                 if (keycode == 188 && shift_key) { // <
 309                         viewFeedGoPage(-1);
 310                 }
 311
 312                 if (keycode == 191 && shift_key) { // ?
 313                         viewFeedGoPage(0);
 314                 }
 315
 316                 if (keycode == 69 && shift_key) { // e
 317                         return editFeedDlg(getActiveFeedId());
 318                 }
 319
 320                 if (keycode == 70 && shift_key) { // f
 321                         if (getActiveFeedId()) {
 322                                 return catchupCurrentFeed();
 323                         }
 324                 }
 325
 326                 if (keycode == 80 && shift_key) { // p
 327                         if (getActiveFeedId()) {
 328                                 return catchupPage();
 329                         }
 330                 }
 331
 332                 if (keycode == 86) { // v
 333                         if (getActiveArticleId()) {
 334                                 openArticleInNewWindow(getActiveArticleId());
 335                         }
 336                 }
 337
 338                 if (keycode == 84) { // t
 339
 340                         var id = getActiveArticleId();
 341
 342                         if (id) {
 343
 344                                 var cb = document.getElementById("RCHK-" + id);
 345
 346                                 if (cb) {
 347                                         cb.checked = !cb.checked;
 348                                         toggleSelectRowById(cb, "RROW-" + id);
 349                                 }
 350                         }
 351                 }
 352
 353                 if (keycode == 67) { // c
 354                         var id = getActiveArticleId();
 355
 356                         if (id) {
 357                                 toggleUnread(id, 0);
 358                         }
 359                 }
 360
 361                 if (typeof localHotkeyHandler != 'undefined') {
 362                         try {
 363                                 return localHotkeyHandler(e);
 364                         } catch (e) {
 365                                 exception_error("hotkey_handler, local:", e);
 366                         }
 367                 }
 368
 369                 debug("KP=" + keycode);
 370         } catch (e) {
 371                 exception_error("hotkey_handler", e);
 372         }
 373 }
 374
 375 function cleanSelectedList(element) {
 376         var content = document.getElementById(element);
 377
 378         if (!document.getElementById("feedCatHolder")) {
 379                 for (i = 0; i < content.childNodes.length; i++) {
 380                         var child = content.childNodes[i];
 381                         try {
 382                                 child.className = child.className.replace("Selected", "");
 383                         } catch (e) {
 384                                 //
 385                         }
 386                 }
 387         } else {
 388                 for (i = 0; i < content.childNodes.length; i++) {
 389                         var child = content.childNodes[i];
 390                         if (child.id == "feedCatHolder") {
 391                                 debug(child.id);
 392                                 var fcat = child.lastChild;
 393                                 for (j = 0; j < fcat.childNodes.length; j++) {
 394                                         var feed = fcat.childNodes[j];
 395                                         feed.className = feed.className.replace("Selected", "");
 396                                 }
 397                         }
 398                 }
 399         }
 400 }
 401
 402
 403 function cleanSelected(element) {
 404         var content = document.getElementById(element);
 405
 406         for (i = 0; i < content.rows.length; i++) {
 407                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 408         }
 409 }
 410
 411 function getVisibleUnreadHeadlines() {
 412         var content = document.getElementById("headlinesList");
 413
 414         var rows = new Array();
 415
 416         for (i = 0; i < content.rows.length; i++) {
 417                 var row_id = content.rows[i].id.replace("RROW-", "");
 418                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 419                                 rows.push(row_id);
 420                 }
 421         }
 422         return rows;
 423 }
 424
 425 function getVisibleHeadlineIds() {
 426
 427         var content = document.getElementById("headlinesList");
 428
 429         var rows = new Array();
 430
 431         for (i = 0; i < content.rows.length; i++) {
 432                 var row_id = content.rows[i].id.replace("RROW-", "");
 433                 if (row_id.length > 0) {
 434                                 rows.push(row_id);
 435                 }
 436         }
 437         return rows;
 438 }
 439
 440 function getFirstVisibleHeadlineId() {
 441         var rows = getVisibleHeadlineIds();
 442         return rows[0];
 443 }
 444
 445 function getLastVisibleHeadlineId() {
 446         var rows = getVisibleHeadlineIds();
 447         return rows[rows.length-1];
 448 }
 449
 450 function markHeadline(id) {
 451         var row = document.getElementById("RROW-" + id);
 452         if (row) {
 453                 var is_active = false;
 454
 455                 if (row.className.match("Active")) {
 456                         is_active = true;
 457                 }
 458                 row.className = row.className.replace("Selected", "");
 459                 row.className = row.className.replace("Active", "");
 460                 row.className = row.className.replace("Insensitive", "");
 461
 462                 if (is_active) {
 463                         row.className = row.className = "Active";
 464                 }
 465
 466                 var check = document.getElementById("RCHK-" + id);
 467
 468                 if (check) {
 469                         check.checked = true;
 470                 }
 471
 472                 row.className = row.className + "Selected";
 473
 474         }
 475 }
 476
 477 function getFeedIds() {
 478         var content = document.getElementById("feedsList");
 479
 480         var rows = new Array();
 481
 482         for (i = 0; i < content.rows.length; i++) {
 483                 var id = content.rows[i].id.replace("FEEDR-", "");
 484                 if (id.length > 0) {
 485                         rows.push(id);
 486                 }
 487         }
 488
 489         return rows;
 490 }
 491
 492 function setCookie(name, value, lifetime, path, domain, secure) {
 493
 494         var d = false;
 495
 496         if (lifetime) {
 497                 d = new Date();
 498                 d.setTime(d.getTime() + (lifetime * 1000));
 499         }
 500
 501         debug("setCookie: " + name + " => " + value + ": " + d);
 502
 503         int_setCookie(name, value, d, path, domain, secure);
 504
 505 }
 506
 507 function int_setCookie(name, value, expires, path, domain, secure) {
 508         document.cookie= name + "=" + escape(value) +
 509                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 510                 ((path) ? "; path=" + path : "") +
 511                 ((domain) ? "; domain=" + domain : "") +
 512                 ((secure) ? "; secure" : "");
 513 }
 514
 515 function delCookie(name, path, domain) {
 516         if (getCookie(name)) {
 517                 document.cookie = name + "=" +
 518                 ((path) ? ";path=" + path : "") +
 519                 ((domain) ? ";domain=" + domain : "" ) +
 520                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 521         }
 522 }
 523
 524
 525 function getCookie(name) {
 526
 527         var dc = document.cookie;
 528         var prefix = name + "=";
 529         var begin = dc.indexOf("; " + prefix);
 530         if (begin == -1) {
 531             begin = dc.indexOf(prefix);
 532             if (begin != 0) return null;
 533         }
 534         else {
 535             begin += 2;
 536         }
 537         var end = document.cookie.indexOf(";", begin);
 538         if (end == -1) {
 539             end = dc.length;
 540         }
 541         return unescape(dc.substring(begin + prefix.length, end));
 542 }
 543
 544 function disableContainerChildren(id, disable, doc) {
 545
 546         if (!doc) doc = document;
 547
 548         var container = doc.getElementById(id);
 549
 550         if (!container) {
 551                 //alert("disableContainerChildren: element " + id + " not found");
 552                 return;
 553         }
 554
 555         for (var i = 0; i < container.childNodes.length; i++) {
 556                 var child = container.childNodes[i];
 557
 558                 try {
 559                         child.disabled = disable;
 560                 } catch (E) {
 561
 562                 }
 563
 564                 if (disable) {
 565                         if (child.className && child.className.match("button")) {
 566                                 child.className = "disabledButton";
 567                         }
 568                 } else {
 569                         if (child.className && child.className.match("disabledButton")) {
 570                                 child.className = "button";
 571                         }
 572                 }
 573         }
 574
 575 }
 576
 577 function gotoPreferences() {
 578         document.location.href = "prefs.php";
 579 }
 580
 581 function gotoMain() {
 582         document.location.href = "tt-rss.php";
 583 }
 584
 585 function gotoExportOpml() {
 586         document.location.href = "opml.php?op=Export";
 587 }
 588
 589 function getActiveFeedId() {
 590 //      return getCookie("ttrss_vf_actfeed");
 591         try {
 592                 debug("gAFID: " + active_feed_id);
 593                 return active_feed_id;
 594         } catch (e) {
 595                 exception_error("getActiveFeedId", e);
 596         }
 597 }
 598
 599 function activeFeedIsCat() {
 600         return active_feed_is_cat;
 601 }
 602
 603 function setActiveFeedId(id) {
 604 //      return setCookie("ttrss_vf_actfeed", id);
 605         try {
 606                 debug("sAFID(" + id + ")");
 607                 active_feed_id = id;
 608         } catch (e) {
 609                 exception_error("setActiveFeedId", e);
 610         }
 611 }
 612
 613 function parse_counters(reply, scheduled_call) {
 614         try {
 615
 616                 var feeds_found = 0;
 617
 618                 if (reply.firstChild && reply.firstChild.firstChild) {
 619                         debug("<b>wrong element passed to parse_counters, adjusting.</b>");
 620                         reply = reply.firstChild;
 621                 }
 622
 623                 for (var l = 0; l < reply.childNodes.length; l++) {
 624                         if (!reply.childNodes[l] ||
 625                                 typeof(reply.childNodes[l].getAttribute) == "undefined") {
 626                                 // where did this come from?
 627                                 continue;
 628                         }
 629
 630                         var id = reply.childNodes[l].getAttribute("id");
 631                         var t = reply.childNodes[l].getAttribute("type");
 632                         var ctr = reply.childNodes[l].getAttribute("counter");
 633                         var error = reply.childNodes[l].getAttribute("error");
 634                         var has_img = reply.childNodes[l].getAttribute("hi");
 635                         var updated = reply.childNodes[l].getAttribute("updated");
 636
 637                         if (id == "global-unread") {
 638                                 global_unread = ctr;
 639                                 updateTitle();
 640                                 continue;
 641                         }
 642
 643                         if (id == "subscribed-feeds") {
 644                                 feeds_found = ctr;
 645                                 continue;
 646                         }
 647
 648                         if (t == "category") {
 649                                 var catctr = document.getElementById("FCATCTR-" + id);
 650                                 if (catctr) {
 651                                         catctr.innerHTML = "(" + ctr + ")";
 652                                         if (ctr > 0) {
 653                                                 catctr.className = "catCtrHasUnread";
 654                                         } else {
 655                                                 catctr.className = "catCtrNoUnread";
 656                                         }
 657                                 }
 658                                 continue;
 659                         }
 660
 661                         var feedctr = document.getElementById("FEEDCTR-" + id);
 662                         var feedu = document.getElementById("FEEDU-" + id);
 663                         var feedr = document.getElementById("FEEDR-" + id);
 664                         var feed_img = document.getElementById("FIMG-" + id);
 665                         var feedlink = document.getElementById("FEEDL-" + id);
 666                         var feedupd = document.getElementById("FLUPD-" + id);
 667
 668                         if (updated && feedlink) {
 669                                 if (error) {
 670                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 671                                 } else {
 672                                         feedlink.title = "Updated: " + updated;
 673                                 }
 674                         }
 675
 676                         if (updated && feedupd) {
 677                                 if (error) {
 678                                         feedupd.innerHTML = updated + " (Error)";
 679                                 } else {
 680                                         feedupd.innerHTML = updated;
 681                                 }
 682                         }
 683
 684                         if (feedctr && feedu && feedr) {
 685
 686                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 687                                         viewCurrentFeed();
 688                                 }
 689
 690                                 feedu.innerHTML = ctr;
 691
 692                                 if (error) {
 693                                         feedr.className = feedr.className.replace("feed", "error");
 694                                 } else if (id > 0) {
 695                                         feedr.className = feedr.className.replace("error", "feed");
 696                                 }
 697
 698                                 if (ctr > 0) {
 699                                         feedctr.className = "odd";
 700                                         if (!feedr.className.match("Unread")) {
 701                                                 var is_selected = feedr.className.match("Selected");
 702
 703                                                 feedr.className = feedr.className.replace("Selected", "");
 704                                                 feedr.className = feedr.className.replace("Unread", "");
 705
 706                                                 feedr.className = feedr.className + "Unread";
 707
 708                                                 if (is_selected) {
 709                                                         feedr.className = feedr.className + "Selected";
 710                                                 }
 711
 712                                         }
 713                                 } else {
 714                                         feedctr.className = "invisible";
 715                                         feedr.className = feedr.className.replace("Unread", "");
 716                                 }
 717                         }
 718                 }
 719
 720                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 721
 722                 var feeds_stored = number_of_feeds;
 723
 724                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 725
 726                 if (feeds_stored != feeds_found) {
 727                         number_of_feeds = feeds_found;
 728
 729                         if (feeds_stored != 0) {
 730                                 debug("Subscribed feed number changed, refreshing feedlist");
 731                                 setTimeout('updateFeedList(false, false)', 50);
 732                         }
 733                 }
 734
 735         } catch (e) {
 736                 exception_error("parse_counters", e);
 737         }
 738 }
 739
 740 function parse_counters_reply(xmlhttp, scheduled_call) {
 741
 742         if (!xmlhttp.responseXML) {
 743                 notify_error("Backend did not return valid XML", true);
 744                 return;
 745         }
 746
 747         var reply = xmlhttp.responseXML.firstChild;
 748
 749         if (!reply) {
 750                 notify_error("Backend did not return expected XML object", true);
 751                 updateTitle("");
 752                 return;
 753         }
 754
 755         var error_code = false;
 756         var error_msg = false;
 757
 758         if (reply.firstChild) {
 759                 error_code = reply.firstChild.getAttribute("error-code");
 760                 error_msg = reply.firstChild.getAttribute("error-msg");
 761         }
 762
 763         if (!error_code) {
 764                 error_code = reply.getAttribute("error-code");
 765                 error_msg = reply.getAttribute("error-msg");
 766         }
 767
 768         if (error_code && error_code != 0) {
 769                 debug("refetch_callback: got error code " + error_code);
 770                 return fatalError(error_code, error_msg);
 771         }
 772
 773         var counters = reply.firstChild;
 774
 775         parse_counters(counters, scheduled_call);
 776
 777         var runtime_info = counters.nextSibling;
 778
 779         parse_runtime_info(runtime_info);
 780
 781         if (getInitParam("feeds_sort_by_unread") == 1) {
 782                         resort_feedlist();
 783         }
 784
 785         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 786
 787 }
 788
 789 function all_counters_callback() {
 790         if (xmlhttp_rpc.readyState == 4) {
 791                 try {
 792 /*                      if (!xmlhttp_rpc.responseXML || !xmlhttp_rpc.responseXML.firstChild) {
 793                                 debug("[all_counters_callback] backend did not return valid XML");
 794                                 return;
 795                         }
 796
 797                         debug("in all_counters_callback : " + xmlhttp_rpc.responseXML);
 798
 799                         var reply = xmlhttp_rpc.responseXML.firstChild;
 800
 801                         var counters = reply.firstChild;
 802
 803                         parse_counters(counters);
 804
 805                         var runtime = counters.nextSibling;
 806
 807                         if (runtime) {
 808                                 parse_runtime_info(runtime);
 809                         }
 810
 811                         if (getInitParam("feeds_sort_by_unread") == 1) {
 812                                 resort_feedlist();
 813                         }
 814
 815                         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1); */
 816
 817                         debug("in all_counters_callback");
 818
 819                         parse_counters_reply(xmlhttp_rpc);
 820
 821                 } catch (e) {
 822                         exception_error("all_counters_callback", e);
 823                 }
 824         }
 825 }
 826
 827 function get_feed_entry_unread(doc, elem) {
 828
 829         var id = elem.id.replace("FEEDR-", "");
 830
 831         if (id <= 0) {
 832                 return -1;
 833         }
 834
 835         try {
 836                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 837         } catch (e) {
 838                 return -1;
 839         }
 840 }
 841
 842 function resort_category(doc, node) {
 843         debug("resort_category: " + node);
 844
 845         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 846                 for (i = 0; i < node.childNodes.length; i++) {
 847                         if (node.childNodes[i].nodeName != "LI") { continue; }
 848
 849                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 850                                 continue;
 851                         }
 852
 853                         for (j = i+1; j < node.childNodes.length; j++) {
 854                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 855
 856                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 857                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 858
 859                                 if (cur_val > tmp_val) {
 860                                         tempnode_i = node.childNodes[i].cloneNode(true);
 861                                         tempnode_j = node.childNodes[j].cloneNode(true);
 862                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 863                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 864                                 }
 865                         }
 866
 867                 }
 868         }
 869
 870 }
 871
 872 function resort_feedlist() {
 873         debug("resort_feedlist");
 874
 875         var fd = document;
 876
 877         if (fd.getElementById("feedCatHolder")) {
 878
 879                 var feeds = fd.getElementById("feedList");
 880                 var child = feeds.firstChild;
 881
 882                 while (child) {
 883
 884                         if (child.id == "feedCatHolder") {
 885                                 resort_category(fd, child.firstChild);
 886                         }
 887
 888                         child = child.nextSibling;
 889                 }
 890
 891         } else {
 892                 resort_category(fd, fd.getElementById("feedList"));
 893         }
 894 }
 895
 896 function update_all_counters(feed) {
 897         if (xmlhttp_ready(xmlhttp_rpc)) {
 898                 var query = "backend.php?op=rpc&subop=getAllCounters";
 899
 900                 if (feed > 0) {
 901                         query = query + "&aid=" + feed;
 902                 }
 903
 904                 if (tagsAreDisplayed()) {
 905                         query = query + "&omode=lt";
 906                 } else {
 907                         query = query + "&omode=flc";
 908                 }
 909
 910                 debug("update_all_counters QUERY: " + query);
 911
 912                 var date = new Date();
 913                 var timestamp = Math.round(date.getTime() / 1000);
 914                 query = query + "&ts=" + timestamp
 915
 916                 xmlhttp_rpc.open("GET", query, true);
 917                 xmlhttp_rpc.onreadystatechange=all_counters_callback;
 918                 xmlhttp_rpc.send(null);
 919         }
 920 }
 921
 922 function popupHelp(tid) {
 923         var w = window.open("backend.php?op=help&tid=" + tid,
 924                 "Popup Help",
 925                 "menubar=no,location=no,resizable=yes,scrollbars=yes,status=no");
 926 }
 927
 928 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 929   * * @author Sundar Dorai-Raj
 930   * * Email: sdoraira@vt.edu
 931   * * This program is free software; you can redistribute it and/or
 932   * * modify it under the terms of the GNU General Public License
 933   * * as published by the Free Software Foundation; either version 2
 934   * * of the License, or (at your option) any later version,
 935   * * provided that any use properly credits the author.
 936   * * This program is distributed in the hope that it will be useful,
 937   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 938   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 939   * * GNU General Public License for more details at http://www.gnu.org * * */
 940
 941   var numbers=".0123456789";
 942   function isNumeric(x) {
 943     // is x a String or a character?
 944     if(x.length>1) {
 945       // remove negative sign
 946       x=Math.abs(x)+"";
 947       for(j=0;j<x.length;j++) {
 948         // call isNumeric recursively for each character
 949         number=isNumeric(x.substring(j,j+1));
 950         if(!number) return number;
 951       }
 952       return number;
 953     }
 954     else {
 955       // if x is number return true
 956       if(numbers.indexOf(x)>=0) return true;
 957       return false;
 958     }
 959   }
 960
 961
 962 function hideOrShowFeeds(doc, hide) {
 963
 964         debug("hideOrShowFeeds: " + doc + ", " + hide);
 965
 966         var fd = document;
 967
 968         var list = fd.getElementById("feedList");
 969
 970         if (fd.getElementById("feedCatHolder")) {
 971
 972                 var feeds = fd.getElementById("feedList");
 973                 var child = feeds.firstChild;
 974
 975                 while (child) {
 976
 977                         if (child.id == "feedCatHolder") {
 978                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 979                         }
 980
 981                         child = child.nextSibling;
 982                 }
 983
 984         } else {
 985                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 986         }
 987 }
 988
 989 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 990
 991 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 992
 993         var cat_unread = 0;
 994
 995         if (!node) {
 996                 debug("hideOrShowFeeds: passed node is null, aborting");
 997                 return;
 998         }
 999
1000         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
1001                 for (i = 0; i < node.childNodes.length; i++) {
1002                         if (node.childNodes[i].nodeName != "LI") { continue; }
1003
1004                         if (node.childNodes[i].style != undefined) {
1005
1006                                 var has_unread = (node.childNodes[i].className != "feed" &&
1007                                         node.childNodes[i].className != "tag");
1008
1009         //                      debug(node.childNodes[i].id + " --> " + has_unread);
1010
1011                                 if (hide && !has_unread) {
1012                                         node.childNodes[i].style.display = "none";
1013                                 }
1014
1015                                 if (!hide) {
1016                                         node.childNodes[i].style.display = "list-item";
1017                                 }
1018
1019                                 if (has_unread) {
1020                                         node.childNodes[i].style.display = "list-item";
1021                                         cat_unread++;
1022                                 }
1023                         }
1024                 }
1025         }
1026
1027         if (cat_unread == 0) {
1028                 if (cat_node.style == undefined) {
1029                         debug("ERROR: supplied cat_node " + cat_node +
1030                                 " has no styles. WTF?");
1031                         return;
1032                 }
1033                 if (hide) {
1034                         cat_node.style.display = "none";
1035                 } else {
1036                         cat_node.style.display = "list-item";
1037                 }
1038         } else {
1039                 try {
1040                         cat_node.style.display = "list-item";
1041                 } catch (e) {
1042                         debug(e);
1043                 }
1044         }
1045
1046 //      debug("unread for category: " + cat_unread);
1047 }
1048
1049 function selectTableRow(r, do_select) {
1050         r.className = r.className.replace("Selected", "");
1051
1052         if (do_select) {
1053                 r.className = r.className + "Selected";
1054         }
1055 }
1056
1057 function selectTableRowById(elem_id, check_id, do_select) {
1058
1059         try {
1060
1061                 var row = document.getElementById(elem_id);
1062
1063                 if (row) {
1064                         selectTableRow(row, do_select);
1065                 }
1066
1067                 var check = document.getElementById(check_id);
1068
1069                 if (check) {
1070                         check.checked = do_select;
1071                 }
1072         } catch (e) {
1073                 exception_error("selectTableRowById", e);
1074         }
1075 }
1076
1077 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
1078         classcheck, reset_others) {
1079
1080         var content = document.getElementById(content_id);
1081
1082         if (!content) {
1083                 alert("[selectTableRows] Element " + content_id + " not found.");
1084                 return;
1085         }
1086
1087         for (i = 0; i < content.rows.length; i++) {
1088                 if (!classcheck || content.rows[i].className.match(classcheck)) {
1089
1090                         if (content.rows[i].id.match(prefix)) {
1091                                 selectTableRow(content.rows[i], do_select);
1092
1093                                 var row_id = content.rows[i].id.replace(prefix, "");
1094                                 var check = document.getElementById(check_prefix + row_id);
1095
1096                                 if (check) {
1097                                         check.checked = do_select;
1098                                 }
1099                         } else if (reset_others) {
1100                                 selectTableRow(content.rows[i], false);
1101
1102                                 var row_id = content.rows[i].id.replace(prefix, "");
1103                                 var check = document.getElementById(check_prefix + row_id);
1104
1105                                 if (check) {
1106                                         check.checked = false;
1107                                 }
1108
1109                         }
1110                 } else if (reset_others) {
1111                         selectTableRow(content.rows[i], false);
1112
1113                         var row_id = content.rows[i].id.replace(prefix, "");
1114                         var check = document.getElementById(check_prefix + row_id);
1115
1116                         if (check) {
1117                                 check.checked = false;
1118                         }
1119
1120                 }
1121         }
1122 }
1123
1124 function getSelectedTableRowIds(content_id, prefix) {
1125
1126         var content = document.getElementById(content_id);
1127
1128         if (!content) {
1129                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
1130                 return;
1131         }
1132
1133         var sel_rows = new Array();
1134
1135         for (i = 0; i < content.rows.length; i++) {
1136                 if (content.rows[i].id.match(prefix) &&
1137                                 content.rows[i].className.match("Selected")) {
1138
1139                         var row_id = content.rows[i].id.replace(prefix + "-", "");
1140                         sel_rows.push(row_id);
1141                 }
1142         }
1143
1144         return sel_rows;
1145
1146 }
1147
1148 function toggleSelectRowById(sender, id) {
1149         var row = document.getElementById(id);
1150
1151         if (sender.checked) {
1152                 if (!row.className.match("Selected")) {
1153                         row.className = row.className + "Selected";
1154                 }
1155         } else {
1156                 if (row.className.match("Selected")) {
1157                         row.className = row.className.replace("Selected", "");
1158                 }
1159         }
1160 }
1161
1162 function toggleSelectListRow(sender) {
1163         var parent_row = sender.parentNode;
1164
1165         if (sender.checked) {
1166                 if (!parent_row.className.match("Selected")) {
1167                         parent_row.className = parent_row.className + "Selected";
1168                 }
1169         } else {
1170                 if (parent_row.className.match("Selected")) {
1171                         parent_row.className = parent_row.className.replace("Selected", "");
1172                 }
1173         }
1174 }
1175
1176 function tSR(sender) {
1177         return toggleSelectRow(sender);
1178 }
1179
1180 function toggleSelectRow(sender) {
1181         var parent_row = sender.parentNode.parentNode;
1182
1183         if (sender.checked) {
1184                 if (!parent_row.className.match("Selected")) {
1185                         parent_row.className = parent_row.className + "Selected";
1186                 }
1187         } else {
1188                 if (parent_row.className.match("Selected")) {
1189                         parent_row.className = parent_row.className.replace("Selected", "");
1190                 }
1191         }
1192 }
1193
1194 function openExternalUrl(url) {
1195         var w = window.open(url);
1196 }
1197
1198 function getRelativeFeedId(list, id, direction, unread_only) {
1199         if (!id) {
1200                 if (direction == "next") {
1201                         for (i = 0; i < list.childNodes.length; i++) {
1202                                 var child = list.childNodes[i];
1203                                 if (child.id && child.id == "feedCatHolder") {
1204                                         if (child.lastChild) {
1205                                                 var cr = getRelativeFeedId(child.firstChild, id, direction, unread_only);
1206                                                 if (cr) return cr;
1207                                         }
1208                                 } else if (child.id && child.id.match("FEEDR-")) {
1209                                         return child.id.replace('FEEDR-', '');
1210                                 }
1211                         }
1212                 }
1213
1214                 // FIXME select last feed doesn't work when only unread feeds are visible
1215
1216                 if (direction == "prev") {
1217                         for (i = list.childNodes.length-1; i >= 0; i--) {
1218                                 var child = list.childNodes[i];
1219                                 if (child.id == "feedCatHolder" && child.className != "invisible") {
1220                                         if (child.firstChild) {
1221                                                 var cr = getRelativeFeedId(child.firstChild, id, direction);
1222                                                 if (cr) return cr;
1223                                         }
1224                                 } else if (child.id.match("FEEDR-")) {
1225
1226                                         if (getInitParam("hide_read_feeds") == 1) {
1227                                                 if (child.className != "feed") {
1228 //                                                      alert(child.className);
1229                                                         return child.id.replace('FEEDR-', '');
1230                                                 }
1231                                         } else {
1232                                                         return child.id.replace('FEEDR-', '');
1233                                         }
1234                                 }
1235                         }
1236                 }
1237         } else {
1238
1239                 var feed = list.ownerDocument.getElementById("FEEDR-" + id);
1240
1241                 if (getInitParam("hide_read_feeds") == 1) {
1242                         unread_only = true;
1243                 }
1244
1245                 if (direction == "next") {
1246
1247                         var e = feed;
1248
1249                         while (e) {
1250
1251                                 if (e.nextSibling) {
1252
1253                                         e = e.nextSibling;
1254
1255                                 } else if (e.parentNode.parentNode.nextSibling) {
1256
1257                                         var this_cat = e.parentNode.parentNode;
1258
1259                                         e = false;
1260
1261                                         if (this_cat && this_cat.nextSibling) {
1262                                                 while (!e && this_cat.nextSibling) {
1263                                                         this_cat = this_cat.nextSibling;
1264                                                         if (this_cat.id == "feedCatHolder") {
1265                                                                 e = this_cat.firstChild.firstChild;
1266                                                         }
1267                                                 }
1268                                         }
1269
1270                                 } else {
1271                                         e = false;
1272                            }
1273
1274                                 if (e) {
1275                                         if (!unread_only || (unread_only && e.className != "feed" &&
1276                                                         e.className.match("feed")))     {
1277                                                 if (e.parentNode.parentNode && e.parentNode.parentNode.className
1278                                                         != "invisible") {
1279                                                         return e.id.replace("FEEDR-", "");
1280                                                 }
1281                                         }
1282                                 }
1283                         }
1284
1285                 } else if (direction == "prev") {
1286
1287                         var e = feed;
1288
1289                         while (e) {
1290
1291                                 if (e.previousSibling) {
1292
1293                                         e = e.previousSibling;
1294
1295                                 } else if (e.parentNode.parentNode.previousSibling) {
1296
1297                                         var this_cat = e.parentNode.parentNode;
1298
1299                                         e = false;
1300
1301                                         if (this_cat && this_cat.previousSibling) {
1302                                                 while (!e && this_cat.previousSibling) {
1303                                                         this_cat = this_cat.previousSibling;
1304                                                         if (this_cat.id == "feedCatHolder") {
1305                                                                 e = this_cat.firstChild.lastChild;
1306                                                         }
1307                                                 }
1308                                         }
1309
1310                                 } else {
1311                                         e = false;
1312                            }
1313
1314                                 if (e) {
1315                                         if (!unread_only || (unread_only && e.className != "feed" &&
1316                                                         e.className.match("feed")))     {
1317                                                 if (e.parentNode.parentNode && e.parentNode.parentNode.className
1318                                                         != "invisible") {
1319                                                         return e.id.replace("FEEDR-", "");
1320                                                 }
1321                                         }
1322                                 }
1323                         }
1324                 }
1325         }
1326 }
1327
1328 function showBlockElement(id, h_id) {
1329         var elem = document.getElementById(id);
1330
1331         if (elem) {
1332                 elem.style.display = "block";
1333
1334                 if (h_id) {
1335                         elem = document.getElementById(h_id);
1336                         if (elem) {
1337                                 elem.style.display = "none";
1338                         }
1339                 }
1340         } else {
1341                 alert("[showBlockElement] can't find element with id " + id);
1342         }
1343 }
1344
1345 function hideParentElement(e) {
1346         e.parentNode.style.display = "none";
1347 }
1348
1349 function dropboxSelect(e, v) {
1350         for (i = 0; i < e.length; i++) {
1351                 if (e[i].value == v) {
1352                         e.selectedIndex = i;
1353                         break;
1354                 }
1355         }
1356 }
1357
1358 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1359 // bugfixed just a little bit :-)
1360 function getURLParam(strParamName){
1361   var strReturn = "";
1362   var strHref = window.location.href;
1363
1364   if (strHref.indexOf("#") == strHref.length-1) {
1365                 strHref = strHref.substring(0, strHref.length-1);
1366   }
1367
1368   if ( strHref.indexOf("?") > -1 ){
1369     var strQueryString = strHref.substr(strHref.indexOf("?"));
1370     var aQueryString = strQueryString.split("&");
1371     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1372       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1373         var aParam = aQueryString[iParam].split("=");
1374         strReturn = aParam[1];
1375         break;
1376       }
1377     }
1378   }
1379   return strReturn;
1380 }
1381
1382 function leading_zero(p) {
1383         var s = String(p);
1384         if (s.length == 1) s = "0" + s;
1385         return s;
1386 }
1387
1388 function closeInfoBox(cleanup) {
1389
1390         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1391                 var overlay = document.getElementById("dialog_overlay");
1392                 if (overlay) {
1393                         overlay.style.display = "none";
1394                 }
1395         }
1396
1397         var box = document.getElementById('infoBox');
1398         var shadow = document.getElementById('infoBoxShadow');
1399
1400         if (shadow) {
1401                 shadow.style.display = "none";
1402         } else if (box) {
1403                 box.style.display = "none";
1404         }
1405
1406         if (cleanup) box.innerHTML = "&nbsp;";
1407
1408         enableHotkeys();
1409
1410         return false;
1411 }
1412
1413
1414 function displayDlg(id, param) {
1415
1416         if (!xmlhttp_ready(xmlhttp)) {
1417                 printLockingError();
1418                 return
1419         }
1420
1421         notify_progress("Loading, please wait...", true);
1422
1423         xmlhttp.open("GET", "backend.php?op=dlg&id=" +
1424                 param_escape(id) + "&param=" + param_escape(param), true);
1425         xmlhttp.onreadystatechange=infobox_callback;
1426         xmlhttp.send(null);
1427
1428         disableHotkeys();
1429
1430         return false;
1431 }
1432
1433 function infobox_submit_callback() {
1434         if (xmlhttp.readyState == 4) {
1435                 closeInfoBox();
1436
1437                 try {
1438                         // called from prefs, reload tab
1439                         if (active_tab) {
1440                                 selectTab(active_tab, false);
1441                         }
1442                 } catch (e) { }
1443
1444                 if (xmlhttp.responseText) {
1445                         notify_info(xmlhttp.responseText);
1446                 }
1447
1448         }
1449 }
1450
1451 function infobox_callback() {
1452         if (xmlhttp.readyState == 4) {
1453
1454                 try {
1455
1456                         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1457                                 var overlay = document.getElementById("dialog_overlay");
1458                                 if (overlay) {
1459                                         overlay.style.display = "block";
1460                                 }
1461                         }
1462
1463                         var box = document.getElementById('infoBox');
1464                         var shadow = document.getElementById('infoBoxShadow');
1465                         if (box) {
1466                                 box.innerHTML=xmlhttp.responseText;
1467                                 if (shadow) {
1468                                         shadow.style.display = "block";
1469                                 } else {
1470                                         box.style.display = "block";
1471                                 }
1472                         }
1473
1474                         /* FIXME this needs to be moved out somewhere */
1475
1476                         if (document.getElementById("tags_choices")) {
1477                                 new Ajax.Autocompleter('tags_str', 'tags_choices',
1478                                         "backend.php?op=rpc&subop=completeTags",
1479                                         { tokens: ',', paramName: "search" });
1480                         }
1481
1482                         notify("");
1483                 } catch (e) {
1484                         exception_error("infobox_callback", e);
1485                 }
1486         }
1487 }
1488
1489 function helpbox_callback() {
1490         if (xmlhttp.readyState == 4) {
1491                 var box = document.getElementById('helpBox');
1492                 var shadow = document.getElementById('helpBoxShadow');
1493                 if (box) {
1494                         box.innerHTML=xmlhttp.responseText;
1495                         if (shadow) {
1496                                 shadow.style.display = "block";
1497                         } else {
1498                                 box.style.display = "block";
1499                         }
1500                 }
1501                 notify("");
1502         }
1503 }
1504
1505 function addFilter() {
1506
1507         if (!xmlhttp_ready(xmlhttp)) {
1508                 printLockingError();
1509                 return
1510         }
1511
1512         var form = document.forms['filter_add_form'];
1513         var reg_exp = form.reg_exp.value;
1514
1515         if (reg_exp == "") {
1516                 alert("Can't add filter: nothing to match on.");
1517                 return false;
1518         }
1519
1520         var query = Form.serialize("filter_add_form");
1521
1522         xmlhttp.open("GET", "backend.php?" + query, true);
1523         xmlhttp.onreadystatechange=infobox_submit_callback;
1524         xmlhttp.send(null);
1525
1526         return true;
1527 }
1528
1529 function toggleSubmitNotEmpty(e, submit_id) {
1530         try {
1531                 document.getElementById(submit_id).disabled = (e.value == "")
1532         } catch (e) {
1533                 exception_error("toggleSubmitNotEmpty", e);
1534         }
1535 }
1536
1537 function isValidURL(s) {
1538         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1539 }
1540
1541 function qaddFeed() {
1542
1543         if (!xmlhttp_ready(xmlhttp)) {
1544                 printLockingError();
1545                 return
1546         }
1547
1548         var form = document.forms['feed_add_form'];
1549         var feed_url = form.feed_url.value;
1550
1551         if (feed_url == "") {
1552                 alert("Can't subscribe: no feed URL given.");
1553                 return false;
1554         }
1555
1556         notify_progress(__("Subscribing to feed..."), true);
1557
1558         closeInfoBox();
1559
1560         var feeds_doc = document;
1561
1562 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1563
1564         var query = Form.serialize("feed_add_form");
1565
1566         debug("subscribe q: " + query);
1567
1568 /*      xmlhttp.open("GET", "backend.php?" + query, true);
1569         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1570         xmlhttp.send(null); */
1571
1572         xmlhttp.open("POST", "backend.php", true);
1573         xmlhttp.onreadystatechange=dlg_frefresh_callback;
1574         xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1575         xmlhttp.send(query);
1576
1577         return false;
1578 }
1579
1580 function filterCR(e, f)
1581 {
1582      var key;
1583
1584      if(window.event)
1585           key = window.event.keyCode;     //IE
1586      else
1587           key = e.which;     //firefox
1588
1589         if (key == 13) {
1590                 if (typeof f != 'undefined') {
1591                         f();
1592                         return false;
1593                 } else {
1594                         return false;
1595                 }
1596         } else {
1597                 return true;
1598         }
1599 }
1600
1601 function getMainContext() {
1602         return this.window;
1603 }
1604
1605 function getFeedsContext() {
1606         return this.window;
1607 }
1608
1609 function getContentContext() {
1610         return this.window;
1611 }
1612
1613 function getHeadlinesContext() {
1614         return this.window;
1615 }
1616
1617 var debug_last_class = "even";
1618
1619 function debug(msg) {
1620
1621         if (debug_last_class == "even") {
1622                 debug_last_class = "odd";
1623         } else {
1624                 debug_last_class = "even";
1625         }
1626
1627         var c = document.getElementById('debug_output');
1628         if (c && c.style.display == "block") {
1629                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1630                         c.removeChild(c.lastChild);
1631                 }
1632
1633                 var d = new Date();
1634                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1635                         ":" + leading_zero(d.getSeconds());
1636                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1637                         msg + "</li>" + c.innerHTML;
1638         }
1639 }
1640
1641 function getInitParam(key) {
1642         return init_params[key];
1643 }
1644
1645 function storeInitParam(key, value) {
1646         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1647         init_params[key] = value;
1648 }
1649
1650 function fatalError(code, message) {
1651         try {
1652
1653                 if (code == 6) {
1654                         window.location.href = "tt-rss.php";
1655                 } else if (code == 5) {
1656                         window.location.href = "update.php";
1657                 } else {
1658                         var fe = document.getElementById("fatal_error");
1659                         var fc = document.getElementById("fatal_error_msg");
1660
1661                         if (message == "") message = "Unknown error";
1662
1663                         fc.innerHTML = "<img src='images/sign_excl.png'> " + message + " (Code " + code + ")";
1664
1665                         fe.style.display = "block";
1666                 }
1667
1668         } catch (e) {
1669                 exception_error("fatalError", e);
1670         }
1671 }
1672
1673 function getFeedName(id, is_cat) {
1674         var d = getFeedsContext().document;
1675
1676         var e;
1677
1678         if (is_cat) {
1679                 e = d.getElementById("FCATN-" + id);
1680         } else {
1681                 e = d.getElementById("FEEDN-" + id);
1682         }
1683         if (e) {
1684                 return e.innerHTML.stripTags();
1685         } else {
1686                 return null;
1687         }
1688 }
1689
1690 function viewContentUrl(url) {
1691         getContentContext().location = url;
1692 }
1693
1694 function filterDlgCheckAction(sender) {
1695
1696         try {
1697
1698                 var action = sender[sender.selectedIndex].value;
1699
1700                 var form = document.forms["filter_add_form"];
1701
1702                 if (!form) {
1703                         form = document.forms["filter_edit_form"];
1704                 }
1705
1706                 if (!form) {
1707                         debug("filterDlgCheckAction: can't find form!");
1708                         return;
1709                 }
1710
1711                 var action_param = form.action_param;
1712
1713                 if (!action_param) {
1714                         debug("filterDlgCheckAction: can't find action param!");
1715                         return;
1716                 }
1717
1718                 // if selected action supports parameters, enable params field
1719                 if (action == 4) {
1720                         action_param.disabled = false;
1721                 } else {
1722                         action_param.disabled = true;
1723                 }
1724
1725         } catch (e) {
1726                 exception_error(e, "filterDlgCheckAction");
1727         }
1728
1729 }
1730
1731 function explainError(code) {
1732         return displayDlg("explainError", code);
1733 }
1734
1735 function logoutUser() {
1736         try {
1737                 if (xmlhttp_ready(xmlhttp_rpc)) {
1738
1739                         notify_progress("Logging out, please wait...", true);
1740
1741                         xmlhttp_rpc.open("GET", "backend.php?op=rpc&subop=logout", true);
1742                         xmlhttp_rpc.onreadystatechange=logout_callback;
1743                         xmlhttp_rpc.send(null);
1744                 } else {
1745                         printLockingError();
1746                 }
1747         } catch (e) {
1748                 exception_error("logoutUser", e);
1749         }
1750 }
1751
1752 // this only searches loaded headlines list, not in CDM
1753 function getRelativePostIds(id) {
1754
1755         debug("getRelativePostIds: " + id);
1756
1757         var ids = new Array();
1758         var container = document.getElementById("headlinesList");
1759
1760         if (container) {
1761                 var rows = container.rows;
1762
1763                 for (var i = 0; i < rows.length; i++) {
1764                         var r_id = rows[i].id.replace("RROW-", "");
1765
1766                         if (r_id == id) {
1767                                 if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
1768                                 if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
1769                                 if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
1770
1771                                 if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
1772                                 if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
1773                                 if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", ""));
1774
1775                                 return ids;
1776                         }
1777                 }
1778         }
1779
1780         return false;
1781 }
1782
1783 function openArticleInNewWindow(id) {
1784         try {
1785
1786                 if (!xmlhttp_ready(xmlhttp_rpc)) {
1787                         printLockingError();
1788                         return
1789                 }
1790
1791                 debug("openArticleInNewWindow: " + id);
1792
1793                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1794
1795                 debug(query);
1796
1797                 xmlhttp_rpc.open("GET", query, true);
1798                 xmlhttp_rpc.onreadystatechange=open_article_callback;
1799                 xmlhttp_rpc.send(null);
1800
1801         } catch (e) {
1802                 exception_error("openArticleInNewWindow", e);
1803         }
1804 }
1805