functions.js

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