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(transport) {
  68         try {
  69
  70                 if (transport.responseXML) {
  71                         var link = transport.responseXML.getElementsByTagName("link")[0];
  72                         var id = transport.responseXML.getElementsByTagName("id")[0];
  73
  74                         if (link) {
  75                                 window.open(link.firstChild.nodeValue, "_blank");
  76
  77                                 if (id) {
  78                                         id = id.firstChild.nodeValue;
  79                                         if (!document.getElementById("headlinesList")) {
  80                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
  81                                         }
  82                                 }
  83                         }
  84                 }
  85
  86         } catch (e) {
  87                 exception_error("open_article_callback", e);
  88         }
  89 }
  90
  91 function param_escape(arg) {
  92         if (typeof encodeURIComponent != 'undefined')
  93                 return encodeURIComponent(arg);
  94         else
  95                 return escape(arg);
  96 }
  97
  98 function param_unescape(arg) {
  99         if (typeof decodeURIComponent != 'undefined')
 100                 return decodeURIComponent(arg);
 101         else
 102                 return unescape(arg);
 103 }
 104
 105 function delay(gap) {
 106         var then,now;
 107         then=new Date().getTime();
 108         now=then;
 109         while((now-then)<gap) {
 110                 now=new Date().getTime();
 111         }
 112 }
 113
 114 var notify_hide_timerid = false;
 115
 116 function hide_notify() {
 117         var n = document.getElementById("notify");
 118         if (n) {
 119                 n.style.display = "none";
 120         }
 121 }
 122
 123 function notify_real(msg, no_hide, n_type) {
 124
 125         var n = document.getElementById("notify");
 126         var nb = document.getElementById("notify_body");
 127
 128         if (!n || !nb) return;
 129
 130         if (notify_hide_timerid) {
 131                 window.clearTimeout(notify_hide_timerid);
 132         }
 133
 134         if (msg == "") {
 135                 if (n.style.display == "block") {
 136                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 137                 }
 138                 return;
 139         } else {
 140                 n.style.display = "block";
 141         }
 142
 143         /* types:
 144
 145                 1 - generic
 146                 2 - progress
 147                 3 - error
 148                 4 - info
 149
 150         */
 151
 152         if (typeof __ != 'undefined') {
 153                 msg = __(msg);
 154         }
 155
 156         if (n_type == 1) {
 157                 n.className = "notify";
 158         } else if (n_type == 2) {
 159                 n.className = "notifyProgress";
 160                 msg = "<img src='images/indicator_white.gif'> " + msg;
 161         } else if (n_type == 3) {
 162                 n.className = "notifyError";
 163                 msg = "<img src='images/sign_excl.gif'> " + msg;
 164         } else if (n_type == 4) {
 165                 n.className = "notifyInfo";
 166                 msg = "<img src='images/sign_info.gif'> " + msg;
 167         }
 168
 169 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 170
 171         nb.innerHTML = msg;
 172
 173         if (!no_hide) {
 174                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 175         }
 176 }
 177
 178 function notify(msg, no_hide) {
 179         notify_real(msg, no_hide, 1);
 180 }
 181
 182 function notify_progress(msg, no_hide) {
 183         notify_real(msg, no_hide, 2);
 184 }
 185
 186 function notify_error(msg, no_hide) {
 187         notify_real(msg, no_hide, 3);
 188
 189 }
 190
 191 function notify_info(msg, no_hide) {
 192         notify_real(msg, no_hide, 4);
 193 }
 194
 195 function printLockingError() {
 196         notify_info("Please wait until operation finishes.");
 197 }
 198
 199 function hotkey_handler(e) {
 200
 201         try {
 202
 203                 var keycode;
 204                 var shift_key = false;
 205
 206                 try {
 207                         shift_key = e.shiftKey;
 208                 } catch (e) {
 209
 210                 }
 211
 212                 if (!hotkeys_enabled) return;
 213
 214                 if (window.event) {
 215                         keycode = window.event.keyCode;
 216                 } else if (e) {
 217                         keycode = e.which;
 218                 }
 219
 220                 if (keycode == 82) { // r
 221                         return scheduleFeedUpdate(true);
 222                 }
 223
 224                 if (keycode == 83) { // s
 225                         return displayDlg("search", getActiveFeedId());
 226                 }
 227
 228                 if (keycode == 85) { // u
 229                         if (getActiveFeedId()) {
 230                                 return viewfeed(getActiveFeedId(), "ForceUpdate");
 231                         }
 232                 }
 233
 234                 if (keycode == 65) { // a
 235                         return toggleDispRead();
 236                 }
 237
 238                 var feedlist = document.getElementById('feedList');
 239
 240                 if (keycode == 74) { // j
 241                         var feed = getActiveFeedId();
 242                         var new_feed = getRelativeFeedId(feedlist, feed, 'prev');
 243                         if (new_feed) viewfeed(new_feed, '');
 244                 }
 245
 246                 if (keycode == 75) { // k
 247                         var feed = getActiveFeedId();
 248                         var new_feed = getRelativeFeedId(feedlist, feed, 'next');
 249                         if (new_feed) viewfeed(new_feed, '');
 250                 }
 251
 252                 if (keycode == 78 || keycode == 40) { // n, down
 253                         if (typeof moveToPost != 'undefined') {
 254                                 return moveToPost('next');
 255                         }
 256                 }
 257
 258                 if (keycode == 80 || keycode == 38) { // p, up
 259                         if (typeof moveToPost != 'undefined') {
 260                                 return moveToPost('prev');
 261                         }
 262                 }
 263
 264                 if (keycode == 68 && shift_key) { // d
 265                         if (!debug_mode_enabled) {
 266                                 document.getElementById('debug_output').style.display = 'block';
 267                                 debug('debug mode activated');
 268                         } else {
 269                                 document.getElementById('debug_output').style.display = 'none';
 270                         }
 271
 272                         debug_mode_enabled = !debug_mode_enabled;
 273                 }
 274
 275                 if (keycode == 190 && shift_key) { // >
 276                         viewFeedGoPage(1);
 277                 }
 278
 279                 if (keycode == 188 && shift_key) { // <
 280                         viewFeedGoPage(-1);
 281                 }
 282
 283                 if (keycode == 191 && shift_key) { // ?
 284                         viewFeedGoPage(0);
 285                 }
 286
 287                 if (keycode == 69 && shift_key) { // e
 288                         return editFeedDlg(getActiveFeedId());
 289                 }
 290
 291                 if (keycode == 70 && shift_key) { // f
 292                         if (getActiveFeedId()) {
 293                                 return catchupCurrentFeed();
 294                         }
 295                 }
 296
 297                 if (keycode == 80 && shift_key) { // p
 298                         if (getActiveFeedId()) {
 299                                 return catchupPage();
 300                         }
 301                 }
 302
 303                 if (keycode == 86) { // v
 304                         if (getActiveArticleId()) {
 305                                 openArticleInNewWindow(getActiveArticleId());
 306                         }
 307                 }
 308
 309                 if (keycode == 84) { // t
 310
 311                         var id = getActiveArticleId();
 312
 313                         if (id) {
 314
 315                                 var cb = document.getElementById("RCHK-" + id);
 316
 317                                 if (cb) {
 318                                         cb.checked = !cb.checked;
 319                                         toggleSelectRowById(cb, "RROW-" + id);
 320                                 }
 321                         }
 322                 }
 323
 324                 if (keycode == 67) { // c
 325                         var id = getActiveArticleId();
 326
 327                         if (id) {
 328                                 toggleUnread(id, 0);
 329                         }
 330                 }
 331
 332                 if (typeof localHotkeyHandler != 'undefined') {
 333                         try {
 334                                 return localHotkeyHandler(e);
 335                         } catch (e) {
 336                                 exception_error("hotkey_handler, local:", e);
 337                         }
 338                 }
 339
 340                 debug("KP=" + keycode);
 341         } catch (e) {
 342                 exception_error("hotkey_handler", e);
 343         }
 344 }
 345
 346 function cleanSelectedList(element) {
 347         var content = document.getElementById(element);
 348
 349         if (!document.getElementById("feedCatHolder")) {
 350                 for (i = 0; i < content.childNodes.length; i++) {
 351                         var child = content.childNodes[i];
 352                         try {
 353                                 child.className = child.className.replace("Selected", "");
 354                         } catch (e) {
 355                                 //
 356                         }
 357                 }
 358         } else {
 359                 for (i = 0; i < content.childNodes.length; i++) {
 360                         var child = content.childNodes[i];
 361                         if (child.id == "feedCatHolder") {
 362                                 debug(child.id);
 363                                 var fcat = child.lastChild;
 364                                 for (j = 0; j < fcat.childNodes.length; j++) {
 365                                         var feed = fcat.childNodes[j];
 366                                         feed.className = feed.className.replace("Selected", "");
 367                                 }
 368                         }
 369                 }
 370         }
 371 }
 372
 373
 374 function cleanSelected(element) {
 375         var content = document.getElementById(element);
 376
 377         for (i = 0; i < content.rows.length; i++) {
 378                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 379         }
 380 }
 381
 382 function getVisibleUnreadHeadlines() {
 383         var content = document.getElementById("headlinesList");
 384
 385         var rows = new Array();
 386
 387         for (i = 0; i < content.rows.length; i++) {
 388                 var row_id = content.rows[i].id.replace("RROW-", "");
 389                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 390                                 rows.push(row_id);
 391                 }
 392         }
 393         return rows;
 394 }
 395
 396 function getVisibleHeadlineIds() {
 397
 398         var content = document.getElementById("headlinesList");
 399
 400         var rows = new Array();
 401
 402         for (i = 0; i < content.rows.length; i++) {
 403                 var row_id = content.rows[i].id.replace("RROW-", "");
 404                 if (row_id.length > 0) {
 405                                 rows.push(row_id);
 406                 }
 407         }
 408         return rows;
 409 }
 410
 411 function getFirstVisibleHeadlineId() {
 412         var rows = getVisibleHeadlineIds();
 413         return rows[0];
 414 }
 415
 416 function getLastVisibleHeadlineId() {
 417         var rows = getVisibleHeadlineIds();
 418         return rows[rows.length-1];
 419 }
 420
 421 function markHeadline(id) {
 422         var row = document.getElementById("RROW-" + id);
 423         if (row) {
 424                 var is_active = false;
 425
 426                 if (row.className.match("Active")) {
 427                         is_active = true;
 428                 }
 429                 row.className = row.className.replace("Selected", "");
 430                 row.className = row.className.replace("Active", "");
 431                 row.className = row.className.replace("Insensitive", "");
 432
 433                 if (is_active) {
 434                         row.className = row.className = "Active";
 435                 }
 436
 437                 var check = document.getElementById("RCHK-" + id);
 438
 439                 if (check) {
 440                         check.checked = true;
 441                 }
 442
 443                 row.className = row.className + "Selected";
 444
 445         }
 446 }
 447
 448 function getFeedIds() {
 449         var content = document.getElementById("feedsList");
 450
 451         var rows = new Array();
 452
 453         for (i = 0; i < content.rows.length; i++) {
 454                 var id = content.rows[i].id.replace("FEEDR-", "");
 455                 if (id.length > 0) {
 456                         rows.push(id);
 457                 }
 458         }
 459
 460         return rows;
 461 }
 462
 463 function setCookie(name, value, lifetime, path, domain, secure) {
 464
 465         var d = false;
 466
 467         if (lifetime) {
 468                 d = new Date();
 469                 d.setTime(d.getTime() + (lifetime * 1000));
 470         }
 471
 472         debug("setCookie: " + name + " => " + value + ": " + d);
 473
 474         int_setCookie(name, value, d, path, domain, secure);
 475
 476 }
 477
 478 function int_setCookie(name, value, expires, path, domain, secure) {
 479         document.cookie= name + "=" + escape(value) +
 480                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 481                 ((path) ? "; path=" + path : "") +
 482                 ((domain) ? "; domain=" + domain : "") +
 483                 ((secure) ? "; secure" : "");
 484 }
 485
 486 function delCookie(name, path, domain) {
 487         if (getCookie(name)) {
 488                 document.cookie = name + "=" +
 489                 ((path) ? ";path=" + path : "") +
 490                 ((domain) ? ";domain=" + domain : "" ) +
 491                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 492         }
 493 }
 494
 495
 496 function getCookie(name) {
 497
 498         var dc = document.cookie;
 499         var prefix = name + "=";
 500         var begin = dc.indexOf("; " + prefix);
 501         if (begin == -1) {
 502             begin = dc.indexOf(prefix);
 503             if (begin != 0) return null;
 504         }
 505         else {
 506             begin += 2;
 507         }
 508         var end = document.cookie.indexOf(";", begin);
 509         if (end == -1) {
 510             end = dc.length;
 511         }
 512         return unescape(dc.substring(begin + prefix.length, end));
 513 }
 514
 515 function disableContainerChildren(id, disable, doc) {
 516
 517         if (!doc) doc = document;
 518
 519         var container = doc.getElementById(id);
 520
 521         if (!container) {
 522                 //alert("disableContainerChildren: element " + id + " not found");
 523                 return;
 524         }
 525
 526         for (var i = 0; i < container.childNodes.length; i++) {
 527                 var child = container.childNodes[i];
 528
 529                 try {
 530                         child.disabled = disable;
 531                 } catch (E) {
 532
 533                 }
 534
 535                 if (disable) {
 536                         if (child.className && child.className.match("button")) {
 537                                 child.className = "disabledButton";
 538                         }
 539                 } else {
 540                         if (child.className && child.className.match("disabledButton")) {
 541                                 child.className = "button";
 542                         }
 543                 }
 544         }
 545
 546 }
 547
 548 function gotoPreferences() {
 549         document.location.href = "prefs.php";
 550 }
 551
 552 function gotoMain() {
 553         document.location.href = "tt-rss.php";
 554 }
 555
 556 function gotoExportOpml() {
 557         document.location.href = "opml.php?op=Export";
 558 }
 559
 560 function getActiveFeedId() {
 561 //      return getCookie("ttrss_vf_actfeed");
 562         try {
 563                 debug("gAFID: " + active_feed_id);
 564                 return active_feed_id;
 565         } catch (e) {
 566                 exception_error("getActiveFeedId", e);
 567         }
 568 }
 569
 570 function activeFeedIsCat() {
 571         return active_feed_is_cat;
 572 }
 573
 574 function setActiveFeedId(id) {
 575 //      return setCookie("ttrss_vf_actfeed", id);
 576         try {
 577                 debug("sAFID(" + id + ")");
 578                 active_feed_id = id;
 579         } catch (e) {
 580                 exception_error("setActiveFeedId", e);
 581         }
 582 }
 583
 584 function parse_counters(reply, scheduled_call) {
 585         try {
 586
 587                 var feeds_found = 0;
 588
 589                 var elems = reply.getElementsByTagName("counter");
 590
 591                 for (var l = 0; l < elems.length; l++) {
 592
 593                         var id = elems[l].getAttribute("id");
 594                         var t = elems[l].getAttribute("type");
 595                         var ctr = elems[l].getAttribute("counter");
 596                         var error = elems[l].getAttribute("error");
 597                         var has_img = elems[l].getAttribute("hi");
 598                         var updated = elems[l].getAttribute("updated");
 599                         var title = elems[l].getAttribute("title");
 600
 601                         if (id == "global-unread") {
 602                                 global_unread = ctr;
 603                                 updateTitle();
 604                                 continue;
 605                         }
 606
 607                         if (id == "subscribed-feeds") {
 608                                 feeds_found = ctr;
 609                                 continue;
 610                         }
 611
 612                         if (t == "category") {
 613                                 var catctr = document.getElementById("FCATCTR-" + id);
 614                                 if (catctr) {
 615                                         catctr.innerHTML = "(" + ctr + ")";
 616                                         if (ctr > 0) {
 617                                                 catctr.className = "catCtrHasUnread";
 618                                         } else {
 619                                                 catctr.className = "catCtrNoUnread";
 620                                         }
 621                                 }
 622                                 continue;
 623                         }
 624
 625                         var feedctr = document.getElementById("FEEDCTR-" + id);
 626                         var feedu = document.getElementById("FEEDU-" + id);
 627                         var feedr = document.getElementById("FEEDR-" + id);
 628                         var feed_img = document.getElementById("FIMG-" + id);
 629                         var feedlink = document.getElementById("FEEDL-" + id);
 630                         var feedupd = document.getElementById("FLUPD-" + id);
 631
 632                         if (updated && feedlink) {
 633                                 if (error) {
 634                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 635                                 } else {
 636                                         feedlink.title = "Updated: " + updated;
 637                                 }
 638                         }
 639
 640                         if (updated && feedupd) {
 641                                 if (error) {
 642                                         feedupd.innerHTML = updated + " (Error)";
 643                                 } else {
 644                                         feedupd.innerHTML = updated;
 645                                 }
 646                         }
 647
 648                         if (has_img && feed_img && !is_msie()) {
 649                                 if (!feed_img.src.match(id + ".ico")) {
 650                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 651                                 }
 652                         }
 653
 654                         if (feedlink && title) {
 655                                 feedlink.innerHTML = title;
 656                         }
 657
 658                         if (feedctr && feedu && feedr) {
 659
 660                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 661                                         viewCurrentFeed();
 662                                 }
 663
 664                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 665
 666                                 feedu.innerHTML = ctr;
 667
 668                                 if (error) {
 669                                         feedr.className = feedr.className.replace("feed", "error");
 670                                 } else if (id > 0) {
 671                                         feedr.className = feedr.className.replace("error", "feed");
 672                                 }
 673
 674                                 if (ctr > 0) {
 675                                         feedctr.className = "odd";
 676                                         if (!feedr.className.match("Unread")) {
 677                                                 var is_selected = feedr.className.match("Selected");
 678
 679                                                 feedr.className = feedr.className.replace("Selected", "");
 680                                                 feedr.className = feedr.className.replace("Unread", "");
 681
 682                                                 feedr.className = feedr.className + "Unread";
 683
 684                                                 if (is_selected) {
 685                                                         feedr.className = feedr.className + "Selected";
 686                                                 }
 687
 688                                         }
 689
 690                                         if (row_needs_hl) {
 691                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 692                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 693                                         }
 694                                 } else {
 695                                         feedctr.className = "invisible";
 696                                         feedr.className = feedr.className.replace("Unread", "");
 697                                 }
 698                         }
 699                 }
 700
 701                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 702
 703                 var feeds_stored = number_of_feeds;
 704
 705                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 706
 707                 if (feeds_stored != feeds_found) {
 708                         number_of_feeds = feeds_found;
 709
 710                         if (feeds_stored != 0 && feeds_found != 0) {
 711                                 debug("Subscribed feed number changed, refreshing feedlist");
 712                                 setTimeout('updateFeedList(false, false)', 50);
 713                         }
 714                 }
 715
 716         } catch (e) {
 717                 exception_error("parse_counters", e);
 718         }
 719 }
 720
 721 function parse_counters_reply(transport, scheduled_call) {
 722
 723         if (!transport.responseXML) {
 724                 notify_error("Backend did not return valid XML", true);
 725                 return;
 726         }
 727
 728         var reply = transport.responseXML.firstChild;
 729
 730         if (!reply) {
 731                 notify_error("Backend did not return expected XML object", true);
 732                 updateTitle("");
 733                 return;
 734         }
 735
 736         var error_code = false;
 737         var error_msg = false;
 738
 739         if (reply.firstChild) {
 740                 error_code = reply.firstChild.getAttribute("error-code");
 741                 error_msg = reply.firstChild.getAttribute("error-msg");
 742         }
 743
 744         if (!error_code) {
 745                 error_code = reply.getAttribute("error-code");
 746                 error_msg = reply.getAttribute("error-msg");
 747         }
 748
 749         if (error_code && error_code != 0) {
 750                 debug("refetch_callback: got error code " + error_code);
 751                 return fatalError(error_code, error_msg);
 752         }
 753
 754         var counters = reply.getElementsByTagName("counters")[0];
 755
 756         parse_counters(counters, scheduled_call);
 757
 758         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 759
 760         parse_runtime_info(runtime_info);
 761
 762         if (getInitParam("feeds_sort_by_unread") == 1) {
 763                         resort_feedlist();
 764         }
 765
 766         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 767
 768 }
 769
 770 function all_counters_callback2(transport) {
 771         try {
 772                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 773                 parse_counters_reply(transport);
 774                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 775
 776         } catch (e) {
 777                 exception_error("all_counters_callback2", e);
 778         }
 779 }
 780
 781 function get_feed_unread(id) {
 782         try {
 783                 return parseInt(document.getElementById("FEEDU-" + id).innerHTML);
 784         } catch (e) {
 785                 exception_error("get_feed_unread", e, true);
 786                 return -1;
 787         }
 788 }
 789
 790 function get_feed_entry_unread(doc, elem) {
 791
 792         var id = elem.id.replace("FEEDR-", "");
 793
 794         if (id <= 0) {
 795                 return -1;
 796         }
 797
 798         try {
 799                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 800         } catch (e) {
 801                 return -1;
 802         }
 803 }
 804
 805 function resort_category(doc, node) {
 806         debug("resort_category: " + node);
 807
 808         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 809                 for (i = 0; i < node.childNodes.length; i++) {
 810                         if (node.childNodes[i].nodeName != "LI") { continue; }
 811
 812                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 813                                 continue;
 814                         }
 815
 816                         for (j = i+1; j < node.childNodes.length; j++) {
 817                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 818
 819                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 820                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 821
 822                                 if (cur_val > tmp_val) {
 823                                         tempnode_i = node.childNodes[i].cloneNode(true);
 824                                         tempnode_j = node.childNodes[j].cloneNode(true);
 825                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 826                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 827                                 }
 828                         }
 829
 830                 }
 831         }
 832
 833 }
 834
 835 function resort_feedlist() {
 836         debug("resort_feedlist");
 837
 838         var fd = document;
 839
 840         if (fd.getElementById("feedCatHolder")) {
 841
 842                 var feeds = fd.getElementById("feedList");
 843                 var child = feeds.firstChild;
 844
 845                 while (child) {
 846
 847                         if (child.id == "feedCatHolder") {
 848                                 resort_category(fd, child.firstChild);
 849                         }
 850
 851                         child = child.nextSibling;
 852                 }
 853
 854         } else {
 855                 resort_category(fd, fd.getElementById("feedList"));
 856         }
 857 }
 858
 859 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 860   * * @author Sundar Dorai-Raj
 861   * * Email: sdoraira@vt.edu
 862   * * This program is free software; you can redistribute it and/or
 863   * * modify it under the terms of the GNU General Public License
 864   * * as published by the Free Software Foundation; either version 2
 865   * * of the License, or (at your option) any later version,
 866   * * provided that any use properly credits the author.
 867   * * This program is distributed in the hope that it will be useful,
 868   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 869   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 870   * * GNU General Public License for more details at http://www.gnu.org * * */
 871
 872   var numbers=".0123456789";
 873   function isNumeric(x) {
 874     // is x a String or a character?
 875     if(x.length>1) {
 876       // remove negative sign
 877       x=Math.abs(x)+"";
 878       for(j=0;j<x.length;j++) {
 879         // call isNumeric recursively for each character
 880         number=isNumeric(x.substring(j,j+1));
 881         if(!number) return number;
 882       }
 883       return number;
 884     }
 885     else {
 886       // if x is number return true
 887       if(numbers.indexOf(x)>=0) return true;
 888       return false;
 889     }
 890   }
 891
 892
 893 function hideOrShowFeeds(doc, hide) {
 894
 895         debug("hideOrShowFeeds: " + doc + ", " + hide);
 896
 897         var fd = document;
 898
 899         var list = fd.getElementById("feedList");
 900
 901         if (fd.getElementById("feedCatHolder")) {
 902
 903                 var feeds = fd.getElementById("feedList");
 904                 var child = feeds.firstChild;
 905
 906                 while (child) {
 907
 908                         if (child.id == "feedCatHolder") {
 909                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 910                         }
 911
 912                         child = child.nextSibling;
 913                 }
 914
 915         } else {
 916                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 917         }
 918 }
 919
 920 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 921
 922 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 923
 924         var cat_unread = 0;
 925
 926         if (!node) {
 927                 debug("hideOrShowFeeds: passed node is null, aborting");
 928                 return;
 929         }
 930
 931 //      debug("cat: " + node.id);
 932
 933         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 934                 for (i = 0; i < node.childNodes.length; i++) {
 935                         if (node.childNodes[i].nodeName != "LI") { continue; }
 936
 937                         if (node.childNodes[i].style != undefined) {
 938
 939                                 var has_unread = (node.childNodes[i].className != "feed" &&
 940                                         node.childNodes[i].className != "label" &&
 941                                         !(!getInitParam("hide_read_shows_special") &&
 942                                                 node.childNodes[i].className == "virt") &&
 943                                         node.childNodes[i].className != "error" &&
 944                                         node.childNodes[i].className != "tag");
 945
 946 //                              debug(node.childNodes[i].id + " --> " + has_unread);
 947
 948                                 if (hide && !has_unread) {
 949                                         //node.childNodes[i].style.display = "none";
 950                                         var id = node.childNodes[i].id;
 951                                         Effect.Fade(node.childNodes[i], {duration : 0.3,
 952                                                 queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 953                                 }
 954
 955                                 if (!hide) {
 956                                         node.childNodes[i].style.display = "list-item";
 957                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 958                                 }
 959
 960                                 if (has_unread) {
 961                                         node.childNodes[i].style.display = "list-item";
 962                                         cat_unread++;
 963                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 964                                         //Effect.Highlight(node.childNodes[i]);
 965                                 }
 966                         }
 967                 }
 968         }
 969
 970 //      debug("end cat: " + node.id + " unread " + cat_unread);
 971
 972         if (cat_unread == 0) {
 973                 if (cat_node.style == undefined) {
 974                         debug("ERROR: supplied cat_node " + cat_node +
 975                                 " has no styles. WTF?");
 976                         return;
 977                 }
 978                 if (hide) {
 979                         //cat_node.style.display = "none";
 980                         Effect.Fade(cat_node, {duration : 0.3,
 981                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 982                 } else {
 983                         cat_node.style.display = "list-item";
 984                 }
 985         } else {
 986                 try {
 987                         cat_node.style.display = "list-item";
 988                 } catch (e) {
 989                         debug(e);
 990                 }
 991         }
 992
 993 //      debug("unread for category: " + cat_unread);
 994 }
 995
 996 function selectTableRow(r, do_select) {
 997         r.className = r.className.replace("Selected", "");
 998
 999         if (do_select) {
1000                 r.className = r.className + "Selected";
1001         }
1002 }
1003
1004 function selectTableRowById(elem_id, check_id, do_select) {
1005
1006         try {
1007
1008                 var row = document.getElementById(elem_id);
1009
1010                 if (row) {
1011                         selectTableRow(row, do_select);
1012                 }
1013
1014                 var check = document.getElementById(check_id);
1015
1016                 if (check) {
1017                         check.checked = do_select;
1018                 }
1019         } catch (e) {
1020                 exception_error("selectTableRowById", e);
1021         }
1022 }
1023
1024 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
1025         classcheck, reset_others) {
1026
1027         var content = document.getElementById(content_id);
1028
1029         if (!content) {
1030                 alert("[selectTableRows] Element " + content_id + " not found.");
1031                 return;
1032         }
1033
1034         for (i = 0; i < content.rows.length; i++) {
1035                 if (!classcheck || content.rows[i].className.match(classcheck)) {
1036
1037                         if (content.rows[i].id.match(prefix)) {
1038                                 selectTableRow(content.rows[i], do_select);
1039
1040                                 var row_id = content.rows[i].id.replace(prefix, "");
1041                                 var check = document.getElementById(check_prefix + row_id);
1042
1043                                 if (check) {
1044                                         check.checked = do_select;
1045                                 }
1046                         } else if (reset_others) {
1047                                 selectTableRow(content.rows[i], false);
1048
1049                                 var row_id = content.rows[i].id.replace(prefix, "");
1050                                 var check = document.getElementById(check_prefix + row_id);
1051
1052                                 if (check) {
1053                                         check.checked = false;
1054                                 }
1055
1056                         }
1057                 } else if (reset_others) {
1058                         selectTableRow(content.rows[i], false);
1059
1060                         var row_id = content.rows[i].id.replace(prefix, "");
1061                         var check = document.getElementById(check_prefix + row_id);
1062
1063                         if (check) {
1064                                 check.checked = false;
1065                         }
1066
1067                 }
1068         }
1069 }
1070
1071 function getSelectedTableRowIds(content_id, prefix) {
1072
1073         var content = document.getElementById(content_id);
1074
1075         if (!content) {
1076                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
1077                 return;
1078         }
1079
1080         var sel_rows = new Array();
1081
1082         for (i = 0; i < content.rows.length; i++) {
1083                 if (content.rows[i].id.match(prefix) &&
1084                                 content.rows[i].className.match("Selected")) {
1085
1086                         var row_id = content.rows[i].id.replace(prefix + "-", "");
1087                         sel_rows.push(row_id);
1088                 }
1089         }
1090
1091         return sel_rows;
1092
1093 }
1094
1095 function toggleSelectRowById(sender, id) {
1096         var row = document.getElementById(id);
1097
1098         if (sender.checked) {
1099                 if (!row.className.match("Selected")) {
1100                         row.className = row.className + "Selected";
1101                 }
1102         } else {
1103                 if (row.className.match("Selected")) {
1104                         row.className = row.className.replace("Selected", "");
1105                 }
1106         }
1107 }
1108
1109 function toggleSelectListRow(sender) {
1110         var parent_row = sender.parentNode;
1111
1112         if (sender.checked) {
1113                 if (!parent_row.className.match("Selected")) {
1114                         parent_row.className = parent_row.className + "Selected";
1115                 }
1116         } else {
1117                 if (parent_row.className.match("Selected")) {
1118                         parent_row.className = parent_row.className.replace("Selected", "");
1119                 }
1120         }
1121 }
1122
1123 function tSR(sender) {
1124         return toggleSelectRow(sender);
1125 }
1126
1127 function toggleSelectRow(sender) {
1128         var parent_row = sender.parentNode.parentNode;
1129
1130         if (sender.checked) {
1131                 if (!parent_row.className.match("Selected")) {
1132                         parent_row.className = parent_row.className + "Selected";
1133                 }
1134         } else {
1135                 if (parent_row.className.match("Selected")) {
1136                         parent_row.className = parent_row.className.replace("Selected", "");
1137                 }
1138         }
1139 }
1140
1141 function getRelativeFeedId(list, id, direction, unread_only) {
1142         var rows = list.getElementsByTagName("LI");
1143         var feeds = new Array();
1144
1145         for (var i = 0; i < rows.length; i++) {
1146                 if (rows[i].id.match("FEEDR-")) {
1147
1148                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1149
1150                                 if (!unread_only ||
1151                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1152                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1153                                 }
1154                         }
1155                 }
1156         }
1157
1158         if (!id) {
1159                 if (direction == "next") {
1160                         return feeds.shift();
1161                 } else {
1162                         return feeds.pop();
1163                 }
1164         } else {
1165                 if (direction == "next") {
1166                         var idx = feeds.indexOf(id);
1167                         if (idx != -1 && idx < feeds.length) {
1168                                 return feeds[idx+1];
1169                         } else {
1170                                 return getRelativeFeedId(list, false, direction, unread_only);
1171                         }
1172                 } else {
1173                         var idx = feeds.indexOf(id);
1174                         if (idx > 0) {
1175                                 return feeds[idx-1];
1176                         } else {
1177                                 return getRelativeFeedId(list, false, direction, unread_only);
1178                         }
1179                 }
1180
1181         }
1182 }
1183
1184 function showBlockElement(id, h_id) {
1185         var elem = document.getElementById(id);
1186
1187         if (elem) {
1188                 elem.style.display = "block";
1189
1190                 if (h_id) {
1191                         elem = document.getElementById(h_id);
1192                         if (elem) {
1193                                 elem.style.display = "none";
1194                         }
1195                 }
1196         } else {
1197                 alert("[showBlockElement] can't find element with id " + id);
1198         }
1199 }
1200
1201 function appearBlockElement_afh(effect) {
1202
1203 }
1204
1205 function checkboxToggleElement(elem, id) {
1206         if (elem.checked) {
1207                 Effect.SlideDown(id, {duration : 0.5});
1208         } else {
1209                 Effect.SlideUp(id, {duration : 0.5});
1210         }
1211 }
1212
1213 function appearBlockElement(id, h_id) {
1214
1215         try {
1216                 if (h_id) {
1217                         Effect.Fade(h_id);
1218                 }
1219                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1220         } catch (e) {
1221                 exception_error("appearBlockElement", e);
1222         }
1223
1224 }
1225
1226 function hideParentElement(e) {
1227         e.parentNode.style.display = "none";
1228 }
1229
1230 function dropboxSelect(e, v) {
1231         for (i = 0; i < e.length; i++) {
1232                 if (e[i].value == v) {
1233                         e.selectedIndex = i;
1234                         break;
1235                 }
1236         }
1237 }
1238
1239 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1240 // bugfixed just a little bit :-)
1241 function getURLParam(strParamName){
1242   var strReturn = "";
1243   var strHref = window.location.href;
1244
1245   if (strHref.indexOf("#") == strHref.length-1) {
1246                 strHref = strHref.substring(0, strHref.length-1);
1247   }
1248
1249   if ( strHref.indexOf("?") > -1 ){
1250     var strQueryString = strHref.substr(strHref.indexOf("?"));
1251     var aQueryString = strQueryString.split("&");
1252     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1253       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1254         var aParam = aQueryString[iParam].split("=");
1255         strReturn = aParam[1];
1256         break;
1257       }
1258     }
1259   }
1260   return strReturn;
1261 }
1262
1263 function leading_zero(p) {
1264         var s = String(p);
1265         if (s.length == 1) s = "0" + s;
1266         return s;
1267 }
1268
1269 function closeInfoBox(cleanup) {
1270
1271         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1272                 var overlay = document.getElementById("dialog_overlay");
1273                 if (overlay) {
1274                         overlay.style.display = "none";
1275                 }
1276         }
1277
1278         var box = document.getElementById('infoBox');
1279         var shadow = document.getElementById('infoBoxShadow');
1280
1281         if (shadow) {
1282                 shadow.style.display = "none";
1283         } else if (box) {
1284                 box.style.display = "none";
1285         }
1286
1287         if (cleanup) box.innerHTML = "&nbsp;";
1288
1289         enableHotkeys();
1290
1291         return false;
1292 }
1293
1294
1295 function displayDlg(id, param) {
1296
1297         notify_progress("Loading, please wait...", true);
1298
1299         disableHotkeys();
1300
1301         var query = "backend.php?op=dlg&id=" +
1302                 param_escape(id) + "&param=" + param_escape(param);
1303
1304         new Ajax.Request(query, {
1305                 onComplete: function (transport) {
1306                         infobox_callback2(transport);
1307                 } });
1308
1309         return false;
1310 }
1311
1312 function infobox_submit_callback2(transport) {
1313         closeInfoBox();
1314
1315         try {
1316                 // called from prefs, reload tab
1317                 if (active_tab) {
1318                         selectTab(active_tab, false);
1319                 }
1320         } catch (e) { }
1321
1322         if (transport.responseText) {
1323                 notify_info(transport.responseText);
1324         }
1325 }
1326
1327 function infobox_callback2(transport) {
1328         try {
1329
1330                 debug("infobox_callback2");
1331
1332                 if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1333                         var overlay = document.getElementById("dialog_overlay");
1334                         if (overlay) {
1335                                 overlay.style.display = "block";
1336                         }
1337                 }
1338
1339                 var box = document.getElementById('infoBox');
1340                 var shadow = document.getElementById('infoBoxShadow');
1341                 if (box) {
1342
1343 /*                              if (!is_safari()) {
1344                                 new Draggable(shadow);
1345                         } */
1346
1347                         box.innerHTML=transport.responseText;
1348                         if (shadow) {
1349                                 shadow.style.display = "block";
1350                         } else {
1351                                 box.style.display = "block";
1352                         }
1353                 }
1354
1355                 /* FIXME this needs to be moved out somewhere */
1356
1357                 if (document.getElementById("tags_choices")) {
1358                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1359                                 "backend.php?op=rpc&subop=completeTags",
1360                                 { tokens: ',', paramName: "search" });
1361                 }
1362
1363                 notify("");
1364         } catch (e) {
1365                 exception_error("infobox_callback2", e);
1366         }
1367 }
1368
1369 function createFilter() {
1370
1371         var form = document.forms['filter_add_form'];
1372         var reg_exp = form.reg_exp.value;
1373
1374         if (reg_exp == "") {
1375                 alert(__("Can't add filter: nothing to match on."));
1376                 return false;
1377         }
1378
1379         var query = Form.serialize("filter_add_form");
1380
1381         new Ajax.Request("backend.php?" + query, {
1382                 onComplete: function (transport) {
1383                         infobox_submit_callback2(transport);
1384                 } });
1385
1386         return true;
1387 }
1388
1389 function toggleSubmitNotEmpty(e, submit_id) {
1390         try {
1391                 document.getElementById(submit_id).disabled = (e.value == "")
1392         } catch (e) {
1393                 exception_error("toggleSubmitNotEmpty", e);
1394         }
1395 }
1396
1397 function isValidURL(s) {
1398         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1399 }
1400
1401 function subscribeToFeed() {
1402
1403         var form = document.forms['feed_add_form'];
1404         var feed_url = form.feed_url.value;
1405
1406         if (feed_url == "") {
1407                 alert(__("Can't subscribe: no feed URL given."));
1408                 return false;
1409         }
1410
1411         notify_progress(__("Subscribing to feed..."), true);
1412
1413         closeInfoBox();
1414
1415         var feeds_doc = document;
1416
1417 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1418
1419         var query = Form.serialize("feed_add_form");
1420
1421         debug("subscribe q: " + query);
1422
1423         new Ajax.Request("backend.php", {
1424                 parameters: query,
1425                 onComplete: function(transport) {
1426                         dlg_frefresh_callback(transport);
1427                 } });
1428
1429         return false;
1430 }
1431
1432 function filterCR(e, f)
1433 {
1434      var key;
1435
1436      if(window.event)
1437           key = window.event.keyCode;     //IE
1438      else
1439           key = e.which;     //firefox
1440
1441         if (key == 13) {
1442                 if (typeof f != 'undefined') {
1443                         f();
1444                         return false;
1445                 } else {
1446                         return false;
1447                 }
1448         } else {
1449                 return true;
1450         }
1451 }
1452
1453 function getMainContext() {
1454         return this.window;
1455 }
1456
1457 function getFeedsContext() {
1458         return this.window;
1459 }
1460
1461 function getContentContext() {
1462         return this.window;
1463 }
1464
1465 function getHeadlinesContext() {
1466         return this.window;
1467 }
1468
1469 var debug_last_class = "even";
1470
1471 function debug(msg) {
1472
1473         if (debug_last_class == "even") {
1474                 debug_last_class = "odd";
1475         } else {
1476                 debug_last_class = "even";
1477         }
1478
1479         var c = document.getElementById('debug_output');
1480         if (c && c.style.display == "block") {
1481                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1482                         c.removeChild(c.lastChild);
1483                 }
1484
1485                 var d = new Date();
1486                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1487                         ":" + leading_zero(d.getSeconds());
1488                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1489                         msg + "</li>" + c.innerHTML;
1490         }
1491 }
1492
1493 function getInitParam(key) {
1494         return init_params[key];
1495 }
1496
1497 function storeInitParam(key, value) {
1498         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1499         init_params[key] = value;
1500 }
1501
1502 function fatalError(code, message) {
1503         try {
1504
1505                 if (code == 6) {
1506                         window.location.href = "tt-rss.php";
1507                 } else if (code == 5) {
1508                         window.location.href = "update.php";
1509                 } else {
1510                         var fe = document.getElementById("fatal_error");
1511                         var fc = document.getElementById("fatal_error_msg");
1512
1513                         if (message == "") message = "Unknown error";
1514
1515                         fc.innerHTML = "<img src='images/sign_excl.gif'> " + message + " (Code " + code + ")";
1516
1517                         fe.style.display = "block";
1518                 }
1519
1520         } catch (e) {
1521                 exception_error("fatalError", e);
1522         }
1523 }
1524
1525 function getFeedName(id, is_cat) {
1526         var d = getFeedsContext().document;
1527
1528         var e;
1529
1530         if (is_cat) {
1531                 e = d.getElementById("FCATN-" + id);
1532         } else {
1533                 e = d.getElementById("FEEDN-" + id);
1534         }
1535         if (e) {
1536                 return e.innerHTML.stripTags();
1537         } else {
1538                 return null;
1539         }
1540 }
1541
1542 function viewContentUrl(url) {
1543         getContentContext().location = url;
1544 }
1545
1546 function filterDlgCheckAction(sender) {
1547
1548         try {
1549
1550                 var action = sender[sender.selectedIndex].value;
1551
1552                 var form = document.forms["filter_add_form"];
1553
1554                 if (!form) {
1555                         form = document.forms["filter_edit_form"];
1556                 }
1557
1558                 if (!form) {
1559                         debug("filterDlgCheckAction: can't find form!");
1560                         return;
1561                 }
1562
1563                 var action_param = form.action_param;
1564
1565                 if (!action_param) {
1566                         debug("filterDlgCheckAction: can't find action param!");
1567                         return;
1568                 }
1569
1570                 // if selected action supports parameters, enable params field
1571                 if (action == 4) {
1572                         action_param.disabled = false;
1573                 } else {
1574                         action_param.disabled = true;
1575                 }
1576
1577         } catch (e) {
1578                 exception_error(e, "filterDlgCheckAction");
1579         }
1580
1581 }
1582
1583 function explainError(code) {
1584         return displayDlg("explainError", code);
1585 }
1586
1587 // this only searches loaded headlines list, not in CDM
1588 function getRelativePostIds(id) {
1589
1590         debug("getRelativePostIds: " + id);
1591
1592         var ids = new Array();
1593         var container = document.getElementById("headlinesList");
1594
1595         if (container) {
1596                 var rows = container.rows;
1597
1598                 for (var i = 0; i < rows.length; i++) {
1599                         var r_id = rows[i].id.replace("RROW-", "");
1600
1601                         if (r_id == id) {
1602                                 if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
1603                                 if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
1604                                 if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
1605
1606                                 if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
1607                                 if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
1608                                 if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", ""));
1609
1610                                 return ids;
1611                         }
1612                 }
1613         }
1614
1615         return false;
1616 }
1617
1618 function openArticleInNewWindow(id) {
1619         try {
1620                 debug("openArticleInNewWindow: " + id);
1621
1622                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1623
1624                 debug(query);
1625
1626                 new Ajax.Request(query, {
1627                         onComplete: function(transport) {
1628                                 open_article_callback(transport);
1629                         } });
1630
1631
1632         } catch (e) {
1633                 exception_error("openArticleInNewWindow", e);
1634         }
1635 }
1636
1637 /* http://textsnippets.com/posts/show/835 */
1638
1639 Position.GetWindowSize = function(w) {
1640         w = w ? w : window;
1641         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1642         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1643         return [width, height]
1644 }
1645
1646 /* http://textsnippets.com/posts/show/836 */
1647
1648 Position.Center = function(element, parent) {
1649         var w, h, pw, ph;
1650         var d = Element.getDimensions(element);
1651         w = d.width;
1652         h = d.height;
1653         Position.prepare();
1654         if (!parent) {
1655                 var ws = Position.GetWindowSize();
1656                 pw = ws[0];
1657                 ph = ws[1];
1658         } else {
1659                 pw = parent.offsetWidth;
1660                 ph = parent.offsetHeight;
1661         }
1662         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1663         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1664 }
1665
1666
1667 function labeltest_callback(transport) {
1668         try {
1669                 var container = document.getElementById('label_test_result');
1670
1671                 container.innerHTML = transport.responseText;
1672                 if (!Element.visible(container)) {
1673                         Effect.SlideDown(container, { duration : 0.5 });
1674                 }
1675
1676                 notify("");
1677         } catch (e) {
1678                 exception_error("labeltest_callback", e);
1679         }
1680 }
1681
1682 function labelTest() {
1683
1684         try {
1685                 var container = document.getElementById('label_test_result');
1686
1687                 var form = document.forms['label_edit_form'];
1688
1689                 var sql_exp = form.sql_exp.value;
1690                 var description = form.description.value;
1691
1692                 notify_progress("Loading, please wait...");
1693
1694                 var query = "backend.php?op=pref-labels&subop=test&expr=" +
1695                         param_escape(sql_exp) + "&descr=" + param_escape(description);
1696
1697                 new Ajax.Request(query, {
1698                         onComplete: function (transport) {
1699                                 labeltest_callback(transport);
1700                         } });
1701
1702                 return false;
1703
1704         } catch (e) {
1705                 exception_error("labelTest", e);
1706         }
1707 }
1708
1709 function isCdmMode() {
1710         return !document.getElementById("headlinesList");
1711 }
1712
1713 function getSelectedArticleIds2() {
1714         var rows = new Array();
1715         var cdm_mode = isCdmMode();
1716
1717         if (cdm_mode) {
1718                 rows = cdmGetSelectedArticles();
1719         } else {
1720                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1721         }
1722
1723         var ids = new Array();
1724
1725         for (var i = 0; i < rows.length; i++) {
1726                 var chk = document.getElementById("RCHK-" + rows[i]);
1727                 if (chk && chk.checked) {
1728                         ids.push(rows[i]);
1729                 }
1730         }
1731
1732         return ids;
1733 }
1734
1735 function displayHelpInfobox(topic_id) {
1736
1737         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1738
1739         var w = window.open(url, "ttrss_help",
1740                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1741
1742         return false;
1743 }