functions.js

   1 var hotkeys_enabled = true;
   2 var debug_mode_enabled = false;
   3 var xmlhttp_rpc = Ajax.getTransport();
   4 var hotkey_zone = 0;
   5
   6 /* add method to remove element from array */
   7
   8 Array.prototype.remove = function(s) {
   9         for (var i=0; i < this.length; i++) {
  10                 if (s == this[i]) this.splice(i, 1);
  11         }
  12 }
  13
  14 function browser_has_opacity() {
  15         return navigator.userAgent.match("Gecko") != null ||
  16                 navigator.userAgent.match("Opera") != null;
  17 }
  18
  19 function is_msie() {
  20         return navigator.userAgent.match("MSIE");
  21 }
  22
  23 function is_opera() {
  24         return navigator.userAgent.match("Opera");
  25 }
  26
  27 function is_khtml() {
  28         return navigator.userAgent.match("KHTML");
  29 }
  30
  31 function is_safari() {
  32         return navigator.userAgent.match("Safari");
  33 }
  34
  35 function exception_error(location, e, silent) {
  36         var msg;
  37
  38         if (e.fileName) {
  39                 var base_fname = e.fileName.substring(e.fileName.lastIndexOf("/") + 1);
  40
  41                 msg = "Exception: " + e.name + ", " + e.message +
  42                         "\nFunction: " + location + "()" +
  43                         "\nLocation: " + base_fname + ":" + e.lineNumber;
  44
  45         } else {
  46                 msg = "Exception: " + e + "\nFunction: " + location + "()";
  47         }
  48
  49         debug("<b>EXCEPTION: " + msg + "</b>");
  50
  51         if (!silent) {
  52                 alert(msg);
  53         }
  54 }
  55
  56 function disableHotkeys() {
  57         hotkeys_enabled = false;
  58 }
  59
  60 function enableHotkeys() {
  61         hotkeys_enabled = true;
  62 }
  63
  64 function xmlhttp_ready(obj) {
  65         return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
  66 }
  67
  68 function open_article_callback(transport) {
  69         try {
  70
  71                 if (transport.responseXML) {
  72
  73                         var link = transport.responseXML.getElementsByTagName("link")[0];
  74                         var id = transport.responseXML.getElementsByTagName("id")[0];
  75
  76                         debug("open_article_callback, received link: " + link);
  77
  78                         if (link) {
  79                                 debug("link url: " + link.firstChild.nodeValue);
  80
  81                                 var w = window.open(link.firstChild.nodeValue, "_blank");
  82
  83                                 if (!w) { notify_error("Failed to load article in new window"); }
  84
  85                                 if (id) {
  86                                         id = id.firstChild.nodeValue;
  87                                         if (!document.getElementById("headlinesList")) {
  88                                                 window.setTimeout("toggleUnread(" + id + ", 0)", 100);
  89                                         }
  90                                 }
  91                         } else {
  92                                 notify_error("Can't open article: received invalid article link");
  93                         }
  94                 } else {
  95                         notify_error("Can't open article: received invalid XML");
  96                 }
  97
  98         } catch (e) {
  99                 exception_error("open_article_callback", e);
 100         }
 101 }
 102
 103 function param_escape(arg) {
 104         if (typeof encodeURIComponent != 'undefined')
 105                 return encodeURIComponent(arg);
 106         else
 107                 return escape(arg);
 108 }
 109
 110 function param_unescape(arg) {
 111         if (typeof decodeURIComponent != 'undefined')
 112                 return decodeURIComponent(arg);
 113         else
 114                 return unescape(arg);
 115 }
 116
 117 function delay(gap) {
 118         var then,now;
 119         then=new Date().getTime();
 120         now=then;
 121         while((now-then)<gap) {
 122                 now=new Date().getTime();
 123         }
 124 }
 125
 126 var notify_hide_timerid = false;
 127
 128 function hide_notify() {
 129         var n = document.getElementById("notify");
 130         if (n) {
 131                 n.style.display = "none";
 132         }
 133 }
 134
 135 function notify_real(msg, no_hide, n_type) {
 136
 137         var n = document.getElementById("notify");
 138         var nb = document.getElementById("notify_body");
 139
 140         if (!n || !nb) return;
 141
 142         if (notify_hide_timerid) {
 143                 window.clearTimeout(notify_hide_timerid);
 144         }
 145
 146         if (msg == "") {
 147                 if (n.style.display == "block") {
 148                         notify_hide_timerid = window.setTimeout("hide_notify()", 0);
 149                 }
 150                 return;
 151         } else {
 152                 n.style.display = "block";
 153         }
 154
 155         /* types:
 156
 157                 1 - generic
 158                 2 - progress
 159                 3 - error
 160                 4 - info
 161
 162         */
 163
 164         if (typeof __ != 'undefined') {
 165                 msg = __(msg);
 166         }
 167
 168         if (n_type == 1) {
 169                 n.className = "notify";
 170         } else if (n_type == 2) {
 171                 n.className = "notifyProgress";
 172                 msg = "<img src='images/indicator_white.gif'> " + msg;
 173         } else if (n_type == 3) {
 174                 n.className = "notifyError";
 175                 msg = "<img src='images/sign_excl.gif'> " + msg;
 176         } else if (n_type == 4) {
 177                 n.className = "notifyInfo";
 178                 msg = "<img src='images/sign_info.gif'> " + msg;
 179         }
 180
 181 //      msg = "<img src='images/live_com_loading.gif'> " + msg;
 182
 183         nb.innerHTML = msg;
 184
 185         if (!no_hide) {
 186                 notify_hide_timerid = window.setTimeout("hide_notify()", 3000);
 187         }
 188 }
 189
 190 function notify(msg, no_hide) {
 191         notify_real(msg, no_hide, 1);
 192 }
 193
 194 function notify_progress(msg, no_hide) {
 195         notify_real(msg, no_hide, 2);
 196 }
 197
 198 function notify_error(msg, no_hide) {
 199         notify_real(msg, no_hide, 3);
 200
 201 }
 202
 203 function notify_info(msg, no_hide) {
 204         notify_real(msg, no_hide, 4);
 205 }
 206
 207 function printLockingError() {
 208         notify_info("Please wait until operation finishes.");
 209 }
 210
 211 function cleanSelectedList(element) {
 212         var content = document.getElementById(element);
 213
 214         if (!document.getElementById("feedCatHolder")) {
 215                 for (i = 0; i < content.childNodes.length; i++) {
 216                         var child = content.childNodes[i];
 217                         try {
 218                                 child.className = child.className.replace("Selected", "");
 219                         } catch (e) {
 220                                 //
 221                         }
 222                 }
 223         } else {
 224                 for (i = 0; i < content.childNodes.length; i++) {
 225                         var child = content.childNodes[i];
 226                         if (child.id == "feedCatHolder") {
 227                                 debug(child.id);
 228                                 var fcat = child.lastChild;
 229                                 for (j = 0; j < fcat.childNodes.length; j++) {
 230                                         var feed = fcat.childNodes[j];
 231                                         feed.className = feed.className.replace("Selected", "");
 232                                 }
 233                         }
 234                 }
 235         }
 236 }
 237
 238
 239 function cleanSelected(element) {
 240         var content = document.getElementById(element);
 241
 242         for (i = 0; i < content.rows.length; i++) {
 243                 content.rows[i].className = content.rows[i].className.replace("Selected", "");
 244         }
 245 }
 246
 247 function getVisibleUnreadHeadlines() {
 248         var content = document.getElementById("headlinesList");
 249
 250         var rows = new Array();
 251
 252         for (i = 0; i < content.rows.length; i++) {
 253                 var row_id = content.rows[i].id.replace("RROW-", "");
 254                 if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
 255                                 rows.push(row_id);
 256                 }
 257         }
 258         return rows;
 259 }
 260
 261 function getVisibleHeadlineIds() {
 262
 263         var content = document.getElementById("headlinesList");
 264
 265         var rows = new Array();
 266
 267         for (i = 0; i < content.rows.length; i++) {
 268                 var row_id = content.rows[i].id.replace("RROW-", "");
 269                 if (row_id.length > 0) {
 270                                 rows.push(row_id);
 271                 }
 272         }
 273         return rows;
 274 }
 275
 276 function getFirstVisibleHeadlineId() {
 277         var rows = getVisibleHeadlineIds();
 278         return rows[0];
 279 }
 280
 281 function getLastVisibleHeadlineId() {
 282         var rows = getVisibleHeadlineIds();
 283         return rows[rows.length-1];
 284 }
 285
 286 function markHeadline(id) {
 287         var row = document.getElementById("RROW-" + id);
 288         if (row) {
 289                 var is_active = false;
 290
 291                 if (row.className.match("Active")) {
 292                         is_active = true;
 293                 }
 294                 row.className = row.className.replace("Selected", "");
 295                 row.className = row.className.replace("Active", "");
 296                 row.className = row.className.replace("Insensitive", "");
 297
 298                 if (is_active) {
 299                         row.className = row.className = "Active";
 300                 }
 301
 302                 var check = document.getElementById("RCHK-" + id);
 303
 304                 if (check) {
 305                         check.checked = true;
 306                 }
 307
 308                 row.className = row.className + "Selected";
 309
 310         }
 311 }
 312
 313 function getFeedIds() {
 314         var content = document.getElementById("feedsList");
 315
 316         var rows = new Array();
 317
 318         for (i = 0; i < content.rows.length; i++) {
 319                 var id = content.rows[i].id.replace("FEEDR-", "");
 320                 if (id.length > 0) {
 321                         rows.push(id);
 322                 }
 323         }
 324
 325         return rows;
 326 }
 327
 328 function setCookie(name, value, lifetime, path, domain, secure) {
 329
 330         var d = false;
 331
 332         if (lifetime) {
 333                 d = new Date();
 334                 d.setTime(d.getTime() + (lifetime * 1000));
 335         }
 336
 337         debug("setCookie: " + name + " => " + value + ": " + d);
 338
 339         int_setCookie(name, value, d, path, domain, secure);
 340
 341 }
 342
 343 function int_setCookie(name, value, expires, path, domain, secure) {
 344         document.cookie= name + "=" + escape(value) +
 345                 ((expires) ? "; expires=" + expires.toGMTString() : "") +
 346                 ((path) ? "; path=" + path : "") +
 347                 ((domain) ? "; domain=" + domain : "") +
 348                 ((secure) ? "; secure" : "");
 349 }
 350
 351 function delCookie(name, path, domain) {
 352         if (getCookie(name)) {
 353                 document.cookie = name + "=" +
 354                 ((path) ? ";path=" + path : "") +
 355                 ((domain) ? ";domain=" + domain : "" ) +
 356                 ";expires=Thu, 01-Jan-1970 00:00:01 GMT";
 357         }
 358 }
 359
 360
 361 function getCookie(name) {
 362
 363         var dc = document.cookie;
 364         var prefix = name + "=";
 365         var begin = dc.indexOf("; " + prefix);
 366         if (begin == -1) {
 367             begin = dc.indexOf(prefix);
 368             if (begin != 0) return null;
 369         }
 370         else {
 371             begin += 2;
 372         }
 373         var end = document.cookie.indexOf(";", begin);
 374         if (end == -1) {
 375             end = dc.length;
 376         }
 377         return unescape(dc.substring(begin + prefix.length, end));
 378 }
 379
 380 function disableContainerChildren(id, disable, doc) {
 381
 382         if (!doc) doc = document;
 383
 384         var container = doc.getElementById(id);
 385
 386         if (!container) {
 387                 //alert("disableContainerChildren: element " + id + " not found");
 388                 return;
 389         }
 390
 391         for (var i = 0; i < container.childNodes.length; i++) {
 392                 var child = container.childNodes[i];
 393
 394                 try {
 395                         child.disabled = disable;
 396                 } catch (E) {
 397
 398                 }
 399
 400                 if (disable) {
 401                         if (child.className && child.className.match("button")) {
 402                                 child.className = "disabledButton";
 403                         }
 404                 } else {
 405                         if (child.className && child.className.match("disabledButton")) {
 406                                 child.className = "button";
 407                         }
 408                 }
 409         }
 410
 411 }
 412
 413 function gotoPreferences() {
 414         document.location.href = "prefs.php";
 415 }
 416
 417 function gotoMain() {
 418         document.location.href = "tt-rss.php";
 419 }
 420
 421 function gotoExportOpml() {
 422         document.location.href = "opml.php?op=Export";
 423 }
 424
 425 function getActiveFeedId() {
 426 //      return getCookie("ttrss_vf_actfeed");
 427         try {
 428                 debug("gAFID: " + active_feed_id);
 429                 return active_feed_id;
 430         } catch (e) {
 431                 exception_error("getActiveFeedId", e);
 432         }
 433 }
 434
 435 function activeFeedIsCat() {
 436         return active_feed_is_cat;
 437 }
 438
 439 function setActiveFeedId(id) {
 440 //      return setCookie("ttrss_vf_actfeed", id);
 441         try {
 442                 debug("sAFID(" + id + ")");
 443                 active_feed_id = id;
 444         } catch (e) {
 445                 exception_error("setActiveFeedId", e);
 446         }
 447 }
 448
 449 function parse_counters(reply, scheduled_call) {
 450         try {
 451
 452                 var feeds_found = 0;
 453
 454                 var elems = reply.getElementsByTagName("counter");
 455
 456                 for (var l = 0; l < elems.length; l++) {
 457
 458                         var id = elems[l].getAttribute("id");
 459                         var t = elems[l].getAttribute("type");
 460                         var ctr = elems[l].getAttribute("counter");
 461                         var error = elems[l].getAttribute("error");
 462                         var has_img = elems[l].getAttribute("hi");
 463                         var updated = elems[l].getAttribute("updated");
 464                         var title = elems[l].getAttribute("title");
 465
 466                         if (id == "global-unread") {
 467                                 global_unread = ctr;
 468                                 updateTitle();
 469                                 continue;
 470                         }
 471
 472                         if (id == "subscribed-feeds") {
 473                                 feeds_found = ctr;
 474                                 continue;
 475                         }
 476
 477                         if (t == "category") {
 478                                 var catctr = document.getElementById("FCATCTR-" + id);
 479                                 if (catctr) {
 480                                         catctr.innerHTML = "(" + ctr + ")";
 481                                         if (ctr > 0) {
 482                                                 catctr.className = "catCtrHasUnread";
 483                                         } else {
 484                                                 catctr.className = "catCtrNoUnread";
 485                                         }
 486                                 }
 487                                 continue;
 488                         }
 489
 490                         var feedctr = document.getElementById("FEEDCTR-" + id);
 491                         var feedu = document.getElementById("FEEDU-" + id);
 492                         var feedr = document.getElementById("FEEDR-" + id);
 493                         var feed_img = document.getElementById("FIMG-" + id);
 494                         var feedlink = document.getElementById("FEEDL-" + id);
 495                         var feedupd = document.getElementById("FLUPD-" + id);
 496
 497                         if (updated && feedlink) {
 498                                 if (error) {
 499                                         feedlink.title = "Error: " + error + " (" + updated + ")";
 500                                 } else {
 501                                         feedlink.title = "Updated: " + updated;
 502                                 }
 503                         }
 504
 505                         if (updated && feedupd) {
 506                                 if (error) {
 507                                         feedupd.innerHTML = updated + " (Error)";
 508                                 } else {
 509                                         feedupd.innerHTML = updated;
 510                                 }
 511                         }
 512
 513                         if (has_img && feed_img && !is_msie()) {
 514                                 if (!feed_img.src.match(id + ".ico")) {
 515                                         feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
 516                                 }
 517                         }
 518
 519                         if (feedlink && title) {
 520                                 feedlink.innerHTML = title;
 521                         }
 522
 523                         if (feedctr && feedu && feedr) {
 524
 525                                 if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
 526                                         viewCurrentFeed();
 527                                 }
 528
 529                                 var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
 530
 531                                 feedu.innerHTML = ctr;
 532
 533                                 if (error) {
 534                                         feedr.className = feedr.className.replace("feed", "error");
 535                                 } else if (id > 0) {
 536                                         feedr.className = feedr.className.replace("error", "feed");
 537                                 }
 538
 539                                 if (ctr > 0) {
 540                                         feedctr.className = "odd";
 541                                         if (!feedr.className.match("Unread")) {
 542                                                 var is_selected = feedr.className.match("Selected");
 543
 544                                                 feedr.className = feedr.className.replace("Selected", "");
 545                                                 feedr.className = feedr.className.replace("Unread", "");
 546
 547                                                 feedr.className = feedr.className + "Unread";
 548
 549                                                 if (is_selected) {
 550                                                         feedr.className = feedr.className + "Selected";
 551                                                 }
 552
 553                                         }
 554
 555                                         if (row_needs_hl) {
 556                                                 new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
 557                                                         queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
 558                                         }
 559                                 } else {
 560                                         feedctr.className = "invisible";
 561                                         feedr.className = feedr.className.replace("Unread", "");
 562                                 }
 563                         }
 564                 }
 565
 566                 hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 567
 568                 var feeds_stored = number_of_feeds;
 569
 570                 debug("Feed counters, C: " + feeds_found + ", S:" + feeds_stored);
 571
 572                 if (feeds_stored != feeds_found) {
 573                         number_of_feeds = feeds_found;
 574
 575                         if (feeds_stored != 0 && feeds_found != 0) {
 576                                 debug("Subscribed feed number changed, refreshing feedlist");
 577                                 setTimeout('updateFeedList(false, false)', 50);
 578                         }
 579                 }
 580
 581         } catch (e) {
 582                 exception_error("parse_counters", e);
 583         }
 584 }
 585
 586 function parse_counters_reply(transport, scheduled_call) {
 587
 588         if (!transport.responseXML) {
 589                 notify_error("Backend did not return valid XML", true);
 590                 return;
 591         }
 592
 593         var reply = transport.responseXML.firstChild;
 594
 595         if (!reply) {
 596                 notify_error("Backend did not return expected XML object", true);
 597                 updateTitle("");
 598                 return;
 599         }
 600
 601         var error_code = false;
 602         var error_msg = false;
 603
 604         if (reply.firstChild) {
 605                 error_code = reply.firstChild.getAttribute("error-code");
 606                 error_msg = reply.firstChild.getAttribute("error-msg");
 607         }
 608
 609         if (!error_code) {
 610                 error_code = reply.getAttribute("error-code");
 611                 error_msg = reply.getAttribute("error-msg");
 612         }
 613
 614         if (error_code && error_code != 0) {
 615                 debug("refetch_callback: got error code " + error_code);
 616                 return fatalError(error_code, error_msg);
 617         }
 618
 619         var counters = reply.getElementsByTagName("counters")[0];
 620
 621         parse_counters(counters, scheduled_call);
 622
 623         var runtime_info = reply.getElementsByTagName("runtime-info")[0];
 624
 625         parse_runtime_info(runtime_info);
 626
 627         if (getInitParam("feeds_sort_by_unread") == 1) {
 628                         resort_feedlist();
 629         }
 630
 631         hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
 632
 633 }
 634
 635 function all_counters_callback2(transport) {
 636         try {
 637                 debug("<b>all_counters_callback2 IN: " + transport + "</b>");
 638                 parse_counters_reply(transport);
 639                 debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 640
 641         } catch (e) {
 642                 exception_error("all_counters_callback2", e);
 643         }
 644 }
 645
 646 function get_feed_unread(id) {
 647         try {
 648                 return parseInt(document.getElementById("FEEDU-" + id).innerHTML);
 649         } catch (e) {
 650                 exception_error("get_feed_unread", e, true);
 651                 return -1;
 652         }
 653 }
 654
 655 function get_feed_entry_unread(doc, elem) {
 656
 657         var id = elem.id.replace("FEEDR-", "");
 658
 659         if (id <= 0) {
 660                 return -1;
 661         }
 662
 663         try {
 664                 return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);
 665         } catch (e) {
 666                 return -1;
 667         }
 668 }
 669
 670 function resort_category(doc, node) {
 671         debug("resort_category: " + node);
 672
 673         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 674                 for (i = 0; i < node.childNodes.length; i++) {
 675                         if (node.childNodes[i].nodeName != "LI") { continue; }
 676
 677                         if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
 678                                 continue;
 679                         }
 680
 681                         for (j = i+1; j < node.childNodes.length; j++) {
 682                                 if (node.childNodes[j].nodeName != "LI") { continue; }
 683
 684                                 var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
 685                                 var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
 686
 687                                 if (cur_val > tmp_val) {
 688                                         tempnode_i = node.childNodes[i].cloneNode(true);
 689                                         tempnode_j = node.childNodes[j].cloneNode(true);
 690                                         node.replaceChild(tempnode_i, node.childNodes[j]);
 691                                         node.replaceChild(tempnode_j, node.childNodes[i]);
 692                                 }
 693                         }
 694
 695                 }
 696         }
 697
 698 }
 699
 700 function resort_feedlist() {
 701         debug("resort_feedlist");
 702
 703         var fd = document;
 704
 705         if (fd.getElementById("feedCatHolder")) {
 706
 707                 var feeds = fd.getElementById("feedList");
 708                 var child = feeds.firstChild;
 709
 710                 while (child) {
 711
 712                         if (child.id == "feedCatHolder") {
 713                                 resort_category(fd, child.firstChild);
 714                         }
 715
 716                         child = child.nextSibling;
 717                 }
 718
 719         } else {
 720                 resort_category(fd, fd.getElementById("feedList"));
 721         }
 722 }
 723
 724 /** * @(#)isNumeric.js * * Copyright (c) 2000 by Sundar Dorai-Raj
 725   * * @author Sundar Dorai-Raj
 726   * * Email: sdoraira@vt.edu
 727   * * This program is free software; you can redistribute it and/or
 728   * * modify it under the terms of the GNU General Public License
 729   * * as published by the Free Software Foundation; either version 2
 730   * * of the License, or (at your option) any later version,
 731   * * provided that any use properly credits the author.
 732   * * This program is distributed in the hope that it will be useful,
 733   * * but WITHOUT ANY WARRANTY; without even the implied warranty of
 734   * * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 735   * * GNU General Public License for more details at http://www.gnu.org * * */
 736
 737   var numbers=".0123456789";
 738   function isNumeric(x) {
 739     // is x a String or a character?
 740     if(x.length>1) {
 741       // remove negative sign
 742       x=Math.abs(x)+"";
 743       for(j=0;j<x.length;j++) {
 744         // call isNumeric recursively for each character
 745         number=isNumeric(x.substring(j,j+1));
 746         if(!number) return number;
 747       }
 748       return number;
 749     }
 750     else {
 751       // if x is number return true
 752       if(numbers.indexOf(x)>=0) return true;
 753       return false;
 754     }
 755   }
 756
 757
 758 function hideOrShowFeeds(doc, hide) {
 759
 760         debug("hideOrShowFeeds: " + doc + ", " + hide);
 761
 762         var fd = document;
 763
 764         var list = fd.getElementById("feedList");
 765
 766         if (fd.getElementById("feedCatHolder")) {
 767
 768                 var feeds = fd.getElementById("feedList");
 769                 var child = feeds.firstChild;
 770
 771                 while (child) {
 772
 773                         if (child.id == "feedCatHolder") {
 774                                 hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
 775                         }
 776
 777                         child = child.nextSibling;
 778                 }
 779
 780         } else {
 781                 hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
 782         }
 783 }
 784
 785 function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 786
 787 //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
 788
 789         var cat_unread = 0;
 790
 791         if (!node) {
 792                 debug("hideOrShowFeeds: passed node is null, aborting");
 793                 return;
 794         }
 795
 796 //      debug("cat: " + node.id);
 797
 798         if (node.hasChildNodes() && node.firstChild.nextSibling != false) {
 799                 for (i = 0; i < node.childNodes.length; i++) {
 800                         if (node.childNodes[i].nodeName != "LI") { continue; }
 801
 802                         if (node.childNodes[i].style != undefined) {
 803
 804                                 var has_unread = (node.childNodes[i].className != "feed" &&
 805                                         node.childNodes[i].className != "label" &&
 806                                         !(!getInitParam("hide_read_shows_special") &&
 807                                                 node.childNodes[i].className == "virt") &&
 808                                         node.childNodes[i].className != "error" &&
 809                                         node.childNodes[i].className != "tag");
 810
 811 //                              debug(node.childNodes[i].id + " --> " + has_unread);
 812
 813                                 if (hide && !has_unread) {
 814                                         //node.childNodes[i].style.display = "none";
 815                                         var id = node.childNodes[i].id;
 816                                         Effect.Fade(node.childNodes[i], {duration : 0.3,
 817                                                 queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
 818                                 }
 819
 820                                 if (!hide) {
 821                                         node.childNodes[i].style.display = "list-item";
 822                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 823                                 }
 824
 825                                 if (has_unread) {
 826                                         node.childNodes[i].style.display = "list-item";
 827                                         cat_unread++;
 828                                         //Effect.Appear(node.childNodes[i], {duration : 0.3});
 829                                         //Effect.Highlight(node.childNodes[i]);
 830                                 }
 831                         }
 832                 }
 833         }
 834
 835 //      debug("end cat: " + node.id + " unread " + cat_unread);
 836
 837         if (cat_unread == 0) {
 838                 if (cat_node.style == undefined) {
 839                         debug("ERROR: supplied cat_node " + cat_node +
 840                                 " has no styles. WTF?");
 841                         return;
 842                 }
 843                 if (hide) {
 844                         //cat_node.style.display = "none";
 845                         Effect.Fade(cat_node, {duration : 0.3,
 846                                 queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
 847                 } else {
 848                         cat_node.style.display = "list-item";
 849                 }
 850         } else {
 851                 try {
 852                         cat_node.style.display = "list-item";
 853                 } catch (e) {
 854                         debug(e);
 855                 }
 856         }
 857
 858 //      debug("unread for category: " + cat_unread);
 859 }
 860
 861 function selectTableRow(r, do_select) {
 862         r.className = r.className.replace("Selected", "");
 863
 864         if (do_select) {
 865                 r.className = r.className + "Selected";
 866         }
 867 }
 868
 869 function selectTableRowById(elem_id, check_id, do_select) {
 870
 871         try {
 872
 873                 var row = document.getElementById(elem_id);
 874
 875                 if (row) {
 876                         selectTableRow(row, do_select);
 877                 }
 878
 879                 var check = document.getElementById(check_id);
 880
 881                 if (check) {
 882                         check.checked = do_select;
 883                 }
 884         } catch (e) {
 885                 exception_error("selectTableRowById", e);
 886         }
 887 }
 888
 889 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 890         classcheck, reset_others) {
 891
 892         var content = document.getElementById(content_id);
 893
 894         if (!content) {
 895                 alert("[selectTableRows] Element " + content_id + " not found.");
 896                 return;
 897         }
 898
 899         for (i = 0; i < content.rows.length; i++) {
 900                 if (Element.visible(content.rows[i])) {
 901                         if (!classcheck || content.rows[i].className.match(classcheck)) {
 902
 903                                 if (content.rows[i].id.match(prefix)) {
 904                                         selectTableRow(content.rows[i], do_select);
 905
 906                                         var row_id = content.rows[i].id.replace(prefix, "");
 907                                         var check = document.getElementById(check_prefix + row_id);
 908
 909                                         if (check) {
 910                                                 check.checked = do_select;
 911                                         }
 912                                 } else if (reset_others) {
 913                                         selectTableRow(content.rows[i], false);
 914
 915                                         var row_id = content.rows[i].id.replace(prefix, "");
 916                                         var check = document.getElementById(check_prefix + row_id);
 917
 918                                         if (check) {
 919                                                 check.checked = false;
 920                                         }
 921
 922                                 }
 923                         } else if (reset_others) {
 924                                 selectTableRow(content.rows[i], false);
 925
 926                                 var row_id = content.rows[i].id.replace(prefix, "");
 927                                 var check = document.getElementById(check_prefix + row_id);
 928
 929                                 if (check) {
 930                                         check.checked = false;
 931                                 }
 932
 933                         }
 934                 }
 935         }
 936 }
 937
 938 function getSelectedTableRowIds(content_id, prefix) {
 939
 940         var content = document.getElementById(content_id);
 941
 942         if (!content) {
 943                 alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
 944                 return;
 945         }
 946
 947         var sel_rows = new Array();
 948
 949         for (i = 0; i < content.rows.length; i++) {
 950                 if (content.rows[i].id.match(prefix) &&
 951                                 content.rows[i].className.match("Selected")) {
 952
 953                         var row_id = content.rows[i].id.replace(prefix + "-", "");
 954                         sel_rows.push(row_id);
 955                 }
 956         }
 957
 958         return sel_rows;
 959
 960 }
 961
 962 function toggleSelectRowById(sender, id) {
 963         var row = document.getElementById(id);
 964
 965         if (sender.checked) {
 966                 if (!row.className.match("Selected")) {
 967                         row.className = row.className + "Selected";
 968                 }
 969         } else {
 970                 if (row.className.match("Selected")) {
 971                         row.className = row.className.replace("Selected", "");
 972                 }
 973         }
 974 }
 975
 976 function toggleSelectListRow(sender) {
 977         var parent_row = sender.parentNode;
 978
 979         if (sender.checked) {
 980                 if (!parent_row.className.match("Selected")) {
 981                         parent_row.className = parent_row.className + "Selected";
 982                 }
 983         } else {
 984                 if (parent_row.className.match("Selected")) {
 985                         parent_row.className = parent_row.className.replace("Selected", "");
 986                 }
 987         }
 988 }
 989
 990 function tSR(sender) {
 991         return toggleSelectRow(sender);
 992 }
 993
 994 function toggleSelectRow(sender) {
 995         var parent_row = sender.parentNode.parentNode;
 996
 997         if (sender.checked) {
 998                 if (!parent_row.className.match("Selected")) {
 999                         parent_row.className = parent_row.className + "Selected";
1000                 }
1001         } else {
1002                 if (parent_row.className.match("Selected")) {
1003                         parent_row.className = parent_row.className.replace("Selected", "");
1004                 }
1005         }
1006 }
1007
1008 function getRelativeFeedId(list, id, direction, unread_only) {
1009         var rows = list.getElementsByTagName("LI");
1010         var feeds = new Array();
1011
1012         for (var i = 0; i < rows.length; i++) {
1013                 if (rows[i].id.match("FEEDR-")) {
1014
1015                         if (rows[i].id == "FEEDR-" + id || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
1016
1017                                 if (!unread_only ||
1018                                                 (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
1019                                         feeds.push(rows[i].id.replace("FEEDR-", ""));
1020                                 }
1021                         }
1022                 }
1023         }
1024
1025         if (!id) {
1026                 if (direction == "next") {
1027                         return feeds.shift();
1028                 } else {
1029                         return feeds.pop();
1030                 }
1031         } else {
1032                 if (direction == "next") {
1033                         var idx = feeds.indexOf(id);
1034                         if (idx != -1 && idx < feeds.length) {
1035                                 return feeds[idx+1];
1036                         } else {
1037                                 return getRelativeFeedId(list, false, direction, unread_only);
1038                         }
1039                 } else {
1040                         var idx = feeds.indexOf(id);
1041                         if (idx > 0) {
1042                                 return feeds[idx-1];
1043                         } else {
1044                                 return getRelativeFeedId(list, false, direction, unread_only);
1045                         }
1046                 }
1047
1048         }
1049 }
1050
1051 function showBlockElement(id, h_id) {
1052         var elem = document.getElementById(id);
1053
1054         if (elem) {
1055                 elem.style.display = "block";
1056
1057                 if (h_id) {
1058                         elem = document.getElementById(h_id);
1059                         if (elem) {
1060                                 elem.style.display = "none";
1061                         }
1062                 }
1063         } else {
1064                 alert("[showBlockElement] can't find element with id " + id);
1065         }
1066 }
1067
1068 function appearBlockElement_afh(effect) {
1069
1070 }
1071
1072 function checkboxToggleElement(elem, id) {
1073         if (elem.checked) {
1074                 Effect.SlideDown(id, {duration : 0.5});
1075         } else {
1076                 Effect.SlideUp(id, {duration : 0.5});
1077         }
1078 }
1079
1080 function appearBlockElement(id, h_id) {
1081
1082         try {
1083                 if (h_id) {
1084                         Effect.Fade(h_id);
1085                 }
1086                 Effect.SlideDown(id, {duration : 1.0, afterFinish: appearBlockElement_afh});
1087         } catch (e) {
1088                 exception_error("appearBlockElement", e);
1089         }
1090
1091 }
1092
1093 function hideParentElement(e) {
1094         e.parentNode.style.display = "none";
1095 }
1096
1097 function dropboxSelect(e, v) {
1098         for (i = 0; i < e.length; i++) {
1099                 if (e[i].value == v) {
1100                         e.selectedIndex = i;
1101                         break;
1102                 }
1103         }
1104 }
1105
1106 // originally stolen from http://www.11tmr.com/11tmr.nsf/d6plinks/MWHE-695L9Z
1107 // bugfixed just a little bit :-)
1108 function getURLParam(strParamName){
1109   var strReturn = "";
1110   var strHref = window.location.href;
1111
1112   if (strHref.indexOf("#") == strHref.length-1) {
1113                 strHref = strHref.substring(0, strHref.length-1);
1114   }
1115
1116   if ( strHref.indexOf("?") > -1 ){
1117     var strQueryString = strHref.substr(strHref.indexOf("?"));
1118     var aQueryString = strQueryString.split("&");
1119     for ( var iParam = 0; iParam < aQueryString.length; iParam++ ){
1120       if (aQueryString[iParam].indexOf(strParamName + "=") > -1 ){
1121         var aParam = aQueryString[iParam].split("=");
1122         strReturn = aParam[1];
1123         break;
1124       }
1125     }
1126   }
1127   return strReturn;
1128 }
1129
1130 function leading_zero(p) {
1131         var s = String(p);
1132         if (s.length == 1) s = "0" + s;
1133         return s;
1134 }
1135
1136 function closeInfoBox(cleanup) {
1137
1138         if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1139                 var overlay = document.getElementById("dialog_overlay");
1140                 if (overlay) {
1141                         overlay.style.display = "none";
1142                 }
1143         }
1144
1145         var box = document.getElementById('infoBox');
1146         var shadow = document.getElementById('infoBoxShadow');
1147
1148         if (shadow) {
1149                 shadow.style.display = "none";
1150         } else if (box) {
1151                 box.style.display = "none";
1152         }
1153
1154         if (cleanup) box.innerHTML = "&nbsp;";
1155
1156         enableHotkeys();
1157
1158         return false;
1159 }
1160
1161
1162 function displayDlg(id, param) {
1163
1164         notify_progress("Loading, please wait...", true);
1165
1166         disableHotkeys();
1167
1168         var query = "backend.php?op=dlg&id=" +
1169                 param_escape(id) + "&param=" + param_escape(param);
1170
1171         new Ajax.Request(query, {
1172                 onComplete: function (transport) {
1173                         infobox_callback2(transport);
1174                 } });
1175
1176         return false;
1177 }
1178
1179 function infobox_submit_callback2(transport) {
1180         closeInfoBox();
1181
1182         try {
1183                 // called from prefs, reload tab
1184                 if (active_tab) {
1185                         selectTab(active_tab, false);
1186                 }
1187         } catch (e) { }
1188
1189         if (transport.responseText) {
1190                 notify_info(transport.responseText);
1191         }
1192 }
1193
1194 function infobox_callback2(transport) {
1195         try {
1196
1197                 debug("infobox_callback2");
1198
1199                 if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
1200                         var overlay = document.getElementById("dialog_overlay");
1201                         if (overlay) {
1202                                 overlay.style.display = "block";
1203                         }
1204                 }
1205
1206                 var box = document.getElementById('infoBox');
1207                 var shadow = document.getElementById('infoBoxShadow');
1208                 if (box) {
1209
1210 /*                              if (!is_safari()) {
1211                                 new Draggable(shadow);
1212                         } */
1213
1214                         box.innerHTML=transport.responseText;
1215                         if (shadow) {
1216                                 shadow.style.display = "block";
1217                         } else {
1218                                 box.style.display = "block";
1219                         }
1220                 }
1221
1222                 /* FIXME this needs to be moved out somewhere */
1223
1224                 if (document.getElementById("tags_choices")) {
1225                         new Ajax.Autocompleter('tags_str', 'tags_choices',
1226                                 "backend.php?op=rpc&subop=completeTags",
1227                                 { tokens: ',', paramName: "search" });
1228                 }
1229
1230                 notify("");
1231         } catch (e) {
1232                 exception_error("infobox_callback2", e);
1233         }
1234 }
1235
1236 function createFilter() {
1237
1238         var form = document.forms['filter_add_form'];
1239         var reg_exp = form.reg_exp.value;
1240
1241         if (reg_exp == "") {
1242                 alert(__("Can't add filter: nothing to match on."));
1243                 return false;
1244         }
1245
1246         var query = Form.serialize("filter_add_form");
1247
1248         new Ajax.Request("backend.php?" + query, {
1249                 onComplete: function (transport) {
1250                         infobox_submit_callback2(transport);
1251                 } });
1252
1253         return true;
1254 }
1255
1256 function toggleSubmitNotEmpty(e, submit_id) {
1257         try {
1258                 document.getElementById(submit_id).disabled = (e.value == "")
1259         } catch (e) {
1260                 exception_error("toggleSubmitNotEmpty", e);
1261         }
1262 }
1263
1264 function isValidURL(s) {
1265         return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
1266 }
1267
1268 function subscribeToFeed() {
1269
1270         var form = document.forms['feed_add_form'];
1271         var feed_url = form.feed_url.value;
1272
1273         if (feed_url == "") {
1274                 alert(__("Can't subscribe: no feed URL given."));
1275                 return false;
1276         }
1277
1278         notify_progress(__("Subscribing to feed..."), true);
1279
1280         closeInfoBox();
1281
1282         var feeds_doc = document;
1283
1284 //      feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
1285
1286         var query = Form.serialize("feed_add_form");
1287
1288         debug("subscribe q: " + query);
1289
1290         new Ajax.Request("backend.php", {
1291                 parameters: query,
1292                 onComplete: function(transport) {
1293                         dlg_frefresh_callback(transport);
1294                 } });
1295
1296         return false;
1297 }
1298
1299 function filterCR(e, f)
1300 {
1301      var key;
1302
1303      if(window.event)
1304           key = window.event.keyCode;     //IE
1305      else
1306           key = e.which;     //firefox
1307
1308         if (key == 13) {
1309                 if (typeof f != 'undefined') {
1310                         f();
1311                         return false;
1312                 } else {
1313                         return false;
1314                 }
1315         } else {
1316                 return true;
1317         }
1318 }
1319
1320 function getMainContext() {
1321         return this.window;
1322 }
1323
1324 function getFeedsContext() {
1325         return this.window;
1326 }
1327
1328 function getContentContext() {
1329         return this.window;
1330 }
1331
1332 function getHeadlinesContext() {
1333         return this.window;
1334 }
1335
1336 var debug_last_class = "even";
1337
1338 function debug(msg) {
1339
1340         if (debug_last_class == "even") {
1341                 debug_last_class = "odd";
1342         } else {
1343                 debug_last_class = "even";
1344         }
1345
1346         var c = document.getElementById('debug_output');
1347         if (c && c.style.display == "block") {
1348                 while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
1349                         c.removeChild(c.lastChild);
1350                 }
1351
1352                 var d = new Date();
1353                 var ts = leading_zero(d.getHours()) + ":" + leading_zero(d.getMinutes()) +
1354                         ":" + leading_zero(d.getSeconds());
1355                 c.innerHTML = "<li class=\"" + debug_last_class + "\"><span class=\"debugTS\">[" + ts + "]</span> " +
1356                         msg + "</li>" + c.innerHTML;
1357         }
1358 }
1359
1360 function getInitParam(key) {
1361         return init_params[key];
1362 }
1363
1364 function storeInitParam(key, value) {
1365         debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
1366         init_params[key] = value;
1367 }
1368
1369 function fatalError(code, message) {
1370         try {
1371
1372                 if (code == 6) {
1373                         window.location.href = "tt-rss.php";
1374                 } else if (code == 5) {
1375                         window.location.href = "update.php";
1376                 } else {
1377                         var fe = document.getElementById("fatal_error");
1378                         var fc = document.getElementById("fatal_error_msg");
1379
1380                         if (message == "") message = "Unknown error";
1381
1382                         fc.innerHTML = "<img src='images/sign_excl.gif'> " + message + " (Code " + code + ")";
1383
1384                         fe.style.display = "block";
1385                 }
1386
1387         } catch (e) {
1388                 exception_error("fatalError", e);
1389         }
1390 }
1391
1392 function getFeedName(id, is_cat) {
1393         var d = getFeedsContext().document;
1394
1395         var e;
1396
1397         if (is_cat) {
1398                 e = d.getElementById("FCATN-" + id);
1399         } else {
1400                 e = d.getElementById("FEEDN-" + id);
1401         }
1402         if (e) {
1403                 return e.innerHTML.stripTags();
1404         } else {
1405                 return null;
1406         }
1407 }
1408
1409 function viewContentUrl(url) {
1410         getContentContext().location = url;
1411 }
1412
1413 function filterDlgCheckAction(sender) {
1414
1415         try {
1416
1417                 var action = sender[sender.selectedIndex].value;
1418
1419                 var form = document.forms["filter_add_form"];
1420
1421                 if (!form) {
1422                         form = document.forms["filter_edit_form"];
1423                 }
1424
1425                 if (!form) {
1426                         debug("filterDlgCheckAction: can't find form!");
1427                         return;
1428                 }
1429
1430                 var action_param = form.action_param;
1431
1432                 if (!action_param) {
1433                         debug("filterDlgCheckAction: can't find action param!");
1434                         return;
1435                 }
1436
1437                 // if selected action supports parameters, enable params field
1438                 if (action == 4 || action == 6) {
1439                         action_param.disabled = false;
1440                 } else {
1441                         action_param.disabled = true;
1442                 }
1443
1444         } catch (e) {
1445                 exception_error(e, "filterDlgCheckAction");
1446         }
1447
1448 }
1449
1450 function explainError(code) {
1451         return displayDlg("explainError", code);
1452 }
1453
1454 // this only searches loaded headlines list, not in CDM
1455 function getRelativePostIds(id) {
1456
1457         debug("getRelativePostIds: " + id);
1458
1459         var ids = new Array();
1460         var container = document.getElementById("headlinesList");
1461
1462         if (container) {
1463                 var rows = container.rows;
1464
1465                 for (var i = 0; i < rows.length; i++) {
1466                         var r_id = rows[i].id.replace("RROW-", "");
1467
1468                         if (r_id == id) {
1469                                 if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
1470                                 if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
1471                                 if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
1472
1473                                 if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
1474                                 if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
1475                                 if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", ""));
1476
1477                                 return ids;
1478                         }
1479                 }
1480         }
1481
1482         return false;
1483 }
1484
1485 function openArticleInNewWindow(id) {
1486         try {
1487                 debug("openArticleInNewWindow: " + id);
1488
1489                 var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
1490
1491                 debug(query);
1492
1493                 new Ajax.Request(query, {
1494                         onComplete: function(transport) {
1495                                 open_article_callback(transport);
1496                         } });
1497
1498
1499         } catch (e) {
1500                 exception_error("openArticleInNewWindow", e);
1501         }
1502 }
1503
1504 /* http://textsnippets.com/posts/show/835 */
1505
1506 Position.GetWindowSize = function(w) {
1507         w = w ? w : window;
1508         var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
1509         var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
1510         return [width, height]
1511 }
1512
1513 /* http://textsnippets.com/posts/show/836 */
1514
1515 Position.Center = function(element, parent) {
1516         var w, h, pw, ph;
1517         var d = Element.getDimensions(element);
1518         w = d.width;
1519         h = d.height;
1520         Position.prepare();
1521         if (!parent) {
1522                 var ws = Position.GetWindowSize();
1523                 pw = ws[0];
1524                 ph = ws[1];
1525         } else {
1526                 pw = parent.offsetWidth;
1527                 ph = parent.offsetHeight;
1528         }
1529         element.style.top = (ph/2) - (h/2) -  Position.deltaY + "px";
1530         element.style.left = (pw/2) - (w/2) -  Position.deltaX + "px";
1531 }
1532
1533
1534 function labeltest_callback(transport) {
1535         try {
1536                 var container = document.getElementById('label_test_result');
1537
1538                 container.innerHTML = transport.responseText;
1539                 if (!Element.visible(container)) {
1540                         Effect.SlideDown(container, { duration : 0.5 });
1541                 }
1542
1543                 notify("");
1544         } catch (e) {
1545                 exception_error("labeltest_callback", e);
1546         }
1547 }
1548
1549 function labelTest() {
1550
1551         try {
1552                 var container = document.getElementById('label_test_result');
1553
1554                 var form = document.forms['label_edit_form'];
1555
1556                 var sql_exp = form.sql_exp.value;
1557                 var description = form.description.value;
1558
1559                 notify_progress("Loading, please wait...");
1560
1561                 var query = "backend.php?op=pref-labels&subop=test&expr=" +
1562                         param_escape(sql_exp) + "&descr=" + param_escape(description);
1563
1564                 new Ajax.Request(query, {
1565                         onComplete: function (transport) {
1566                                 labeltest_callback(transport);
1567                         } });
1568
1569                 return false;
1570
1571         } catch (e) {
1572                 exception_error("labelTest", e);
1573         }
1574 }
1575
1576 function isCdmMode() {
1577         return !document.getElementById("headlinesList");
1578 }
1579
1580 function getSelectedArticleIds2() {
1581         var rows = new Array();
1582         var cdm_mode = isCdmMode();
1583
1584         if (cdm_mode) {
1585                 rows = cdmGetSelectedArticles();
1586         } else {
1587                 rows = getSelectedTableRowIds("headlinesList", "RROW", "RCHK");
1588         }
1589
1590         var ids = new Array();
1591
1592         for (var i = 0; i < rows.length; i++) {
1593                 var chk = document.getElementById("RCHK-" + rows[i]);
1594                 if (chk && chk.checked) {
1595                         ids.push(rows[i]);
1596                 }
1597         }
1598
1599         return ids;
1600 }
1601
1602 function displayHelpInfobox(topic_id) {
1603
1604         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
1605
1606         var w = window.open(url, "ttrss_help",
1607                 "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
1608
1609         return false;
1610 }
1611
1612 var _border_color_normal = "#88b0f0";
1613 var _border_color_highlight = "#72eda8";
1614 var _border_color_flash = "#f0fff0";
1615
1616 function highlightHotkeyZone(zone) {
1617         try {
1618                 var feeds = document.getElementById("feeds-holder");
1619                 var headlines = document.getElementById("headlines-frame");
1620                 var content = document.getElementById("content-frame");
1621
1622                 feeds.style.borderColor = _border_color_normal;
1623                 headlines.style.borderColor = _border_color_normal;
1624                 content.style.borderColor = _border_color_normal;
1625
1626                 if (zone == 1) {
1627                         feeds.style.borderColor = _border_color_highlight;
1628
1629                         new Effect.Highlight(feeds, {duration: 0.5, startcolor:
1630                                 _border_color_flash,
1631                                 queue: { position:'end', scope: 'EFCHL-Q', limit: 1 } } );
1632                 }
1633
1634                 if (zone == 2) {
1635                         headlines.style.borderColor = _border_color_highlight;
1636
1637                         new Effect.Highlight(headlines, {duration: 0.5, startcolor:
1638                                 _border_color_flash,
1639                                 queue: { position:'end', scope: 'EFCHL-Q', limit: 1 } } );
1640                 }
1641
1642                 if (zone == 3 && content) {
1643                         content.style.borderColor = _border_color_highlight;
1644
1645                         new Effect.Highlight(content, {duration: 0.5, startcolor:
1646                                 _border_color_flash,
1647                                 queue: { position:'end', scope: 'EFCHL-Q', limit: 1 } } );
1648                 }
1649
1650         } catch (e) {
1651                 exception_error("highlightHotkeyZone", e);
1652         }
1653 }
1654
1655
1656 function setHotkeyZone(zone) {
1657         try {
1658                 hotkey_zone = zone;
1659
1660                 highlightHotkeyZone(zone);
1661
1662
1663         } catch (e) {
1664                 exception_error("setHotkeyZone", e);
1665         }
1666 }
1667