prefs.js

   1 var xmlhttp = false;
   2
   3 var active_feed_cat = false;
   4 var active_label = false;
   5 var active_tab = false;
   6 var feed_to_expand = false;
   7
   8 var piggie_top = -400;
   9 var piggie_fwd = true;
  10
  11 var xmlhttp = Ajax.getTransport();
  12
  13 var init_params = new Array();
  14
  15 var caller_subop = false;
  16
  17 var sanity_check_done = false;
  18
  19 function expand_feed_callback() {
  20         if (xmlhttp.readyState == 4) {
  21                 try {
  22                         var container = document.getElementById("BRDET-" + feed_to_expand);
  23                         container.innerHTML=xmlhttp.responseText;
  24                         container.style.display = "block";
  25 //                      p_notify("");
  26                 } catch (e) {
  27                         exception_error("expand_feed_callback", e);
  28                 }
  29         }
  30 }
  31
  32 function feedlist_callback() {
  33         if (xmlhttp.readyState == 4) {
  34                 try {
  35                         var container = document.getElementById('prefContent');
  36                         container.innerHTML=xmlhttp.responseText;
  37                         selectTab("feedConfig", true);
  38
  39                         if (caller_subop) {
  40                                 var tuple = caller_subop.split(":");
  41                                 if (tuple[0] == 'editFeed') {
  42                                         window.setTimeout('editFeed('+tuple[1]+')', 100);
  43                                 }
  44
  45                                 caller_subop = false;
  46                         }
  47                         if (typeof correctPNG != 'undefined') {
  48                                 correctPNG();
  49                         }
  50                         notify("");
  51                 } catch (e) {
  52                         exception_error("feedlist_callback", e);
  53                 }
  54         }
  55 }
  56
  57 /* stub for subscription dialog */
  58
  59 function dlg_frefresh_callback() {
  60         if (xmlhttp.readyState == 4) {
  61         //      setTimeout("updateFeedList()", 500);
  62
  63                 try {
  64                         var container = document.getElementById('prefContent');
  65                         container.innerHTML=xmlhttp.responseText;
  66                         selectTab("feedConfig", true);
  67
  68                         if (caller_subop) {
  69                                 var tuple = caller_subop.split(":");
  70                                 if (tuple[0] == 'editFeed') {
  71                                         window.setTimeout('editFeed('+tuple[1]+')', 100);
  72                                 }
  73
  74                                 caller_subop = false;
  75                         }
  76                         if (typeof correctPNG != 'undefined') {
  77                                 correctPNG();
  78                         }
  79                         notify("");
  80                 } catch (e) {
  81                         exception_error("feedlist_callback", e);
  82                 }
  83         }
  84 }
  85
  86 function filterlist_callback() {
  87         var container = document.getElementById('prefContent');
  88         if (xmlhttp.readyState == 4) {
  89                 container.innerHTML=xmlhttp.responseText;
  90                 if (typeof correctPNG != 'undefined') {
  91                         correctPNG();
  92                 }
  93                 notify("");
  94         }
  95 }
  96
  97 function labellist_callback() {
  98         var container = document.getElementById('prefContent');
  99         if (xmlhttp.readyState == 4) {
 100                 closeInfoBox();
 101                 container.innerHTML=xmlhttp.responseText;
 102                 if (active_label) {
 103                         var row = document.getElementById("LILRR-" + active_label);
 104                         if (row) {
 105                                 if (!row.className.match("Selected")) {
 106                                         row.className = row.className + "Selected";
 107                                 }
 108                         }
 109                         var checkbox = document.getElementById("LICHK-" + active_label);
 110
 111                         if (checkbox) {
 112                                 checkbox.checked = true;
 113                         }
 114                 }
 115                 if (typeof correctPNG != 'undefined') {
 116                         correctPNG();
 117                 }
 118                 notify("");
 119         }
 120 }
 121
 122 function labeltest_callback() {
 123         var container = document.getElementById('label_test_result');
 124         if (xmlhttp.readyState == 4) {
 125                 container.innerHTML=xmlhttp.responseText;
 126                 notify("");
 127         }
 128 }
 129
 130 function feed_browser_callback() {
 131         var container = document.getElementById('prefContent');
 132         if (xmlhttp.readyState == 4) {
 133                 container.innerHTML=xmlhttp.responseText;
 134                 notify("");
 135         }
 136 }
 137
 138 function userlist_callback() {
 139         var container = document.getElementById('prefContent');
 140         if (xmlhttp.readyState == 4) {
 141                 container.innerHTML=xmlhttp.responseText;
 142                 notify("");
 143         }
 144 }
 145
 146 function prefslist_callback() {
 147         var container = document.getElementById('prefContent');
 148         if (xmlhttp.readyState == 4) {
 149
 150                 container.innerHTML=xmlhttp.responseText;
 151
 152                 notify("");
 153         }
 154 }
 155
 156 function gethelp_callback() {
 157         var container = document.getElementById('prefHelpBox');
 158         if (xmlhttp.readyState == 4) {
 159
 160                 container.innerHTML = xmlhttp.responseText;
 161                 container.style.display = "block";
 162
 163         }
 164 }
 165
 166 function notify_callback() {
 167         if (xmlhttp.readyState == 4) {
 168                 notify_info(xmlhttp.responseText);
 169         }
 170 }
 171
 172
 173 function changepass_callback() {
 174         try {
 175                 if (xmlhttp.readyState == 4) {
 176
 177                         if (xmlhttp.responseText.indexOf("ERROR: ") == 0) {
 178                                 notify_error(xmlhttp.responseText.replace("ERROR: ", ""));
 179                         } else {
 180                                 notify_info(xmlhttp.responseText);
 181                                 var warn = document.getElementById("default_pass_warning");
 182                                 if (warn) warn.style.display = "none";
 183                         }
 184
 185                         document.forms['change_pass_form'].reset();
 186
 187                 }
 188         } catch (e) {
 189                 exception_error("changepass_callback", e);
 190         }
 191 }
 192
 193 function updateFeedList(sort_key) {
 194
 195         if (!xmlhttp_ready(xmlhttp)) {
 196                 printLockingError();
 197                 return
 198         }
 199
 200 //      document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
 201
 202 //      p_notify("Loading, please wait...");
 203
 204         var feed_search = document.getElementById("feed_search");
 205         var search = "";
 206         if (feed_search) { search = feed_search.value; }
 207
 208         xmlhttp.open("GET", "backend.php?op=pref-feeds" +
 209                 "&sort=" + param_escape(sort_key) +
 210                 "&search=" + param_escape(search), true);
 211         xmlhttp.onreadystatechange=feedlist_callback;
 212         xmlhttp.send(null);
 213
 214 }
 215
 216 function updateUsersList(sort_key) {
 217
 218         if (!xmlhttp_ready(xmlhttp)) {
 219                 printLockingError();
 220                 return
 221         }
 222
 223 //      document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
 224
 225 //      p_notify("Loading, please wait...");
 226
 227         xmlhttp.open("GET", "backend.php?op=pref-users&sort="
 228                 + param_escape(sort_key), true);
 229         xmlhttp.onreadystatechange=userlist_callback;
 230         xmlhttp.send(null);
 231
 232 }
 233
 234 function addLabel() {
 235
 236         if (!xmlhttp_ready(xmlhttp)) {
 237                 printLockingError();
 238                 return
 239         }
 240
 241         var form = document.forms['label_edit_form'];
 242
 243         var sql_exp = form.sql_exp.value;
 244         var description = form.description.value;
 245
 246         if (sql_exp == "") {
 247                 alert("Can't create label: missing SQL expression.");
 248                 return false;
 249         }
 250
 251         if (description == "") {
 252                 alert("Can't create label: missing caption.");
 253                 return false;
 254         }
 255
 256         var query = Form.serialize("label_edit_form");
 257
 258         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=add&" + query, true);
 259         xmlhttp.onreadystatechange=infobox_submit_callback;
 260         xmlhttp.send(null);
 261 }
 262
 263 function addFeed() {
 264
 265         if (!xmlhttp_ready(xmlhttp)) {
 266                 printLockingError();
 267                 return
 268         }
 269
 270         var link = document.getElementById("fadd_link");
 271
 272         if (link.value.length == 0) {
 273                 alert(__("Error: No feed URL given."));
 274         } else if (!isValidURL(link.value)) {
 275                 alert(__("Error: Invalid feed URL."));
 276         } else {
 277                 notify_progress("Adding feed...");
 278
 279                 xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=add&from=tt-rss&feed_url=" +
 280                         param_escape(link.value), true);
 281                 xmlhttp.onreadystatechange=feedlist_callback;
 282                 xmlhttp.send(null);
 283
 284                 link.value = "";
 285
 286         }
 287
 288 }
 289
 290 function addFeedCat() {
 291
 292         if (!xmlhttp_ready(xmlhttp)) {
 293                 printLockingError();
 294                 return
 295         }
 296
 297         var cat = document.getElementById("fadd_cat");
 298
 299         if (cat.value.length == 0) {
 300                 alert(__("Can't add category: no name specified."));
 301         } else {
 302                 notify_progress("Adding feed category...");
 303
 304                 xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=add&cat=" +
 305                         param_escape(cat.value), true);
 306                 xmlhttp.onreadystatechange=infobox_callback;
 307                 xmlhttp.send(null);
 308
 309                 link.value = "";
 310
 311         }
 312
 313 }
 314 function addUser() {
 315
 316         if (!xmlhttp_ready(xmlhttp)) {
 317                 printLockingError();
 318                 return
 319         }
 320
 321         var sqlexp = document.getElementById("uadd_box");
 322
 323         if (sqlexp.value.length == 0) {
 324                 alert("Can't add user: no login specified.");
 325         } else {
 326                 notify_progress("Adding user...");
 327
 328                 xmlhttp.open("GET", "backend.php?op=pref-users&subop=add&login=" +
 329                         param_escape(sqlexp.value), true);
 330
 331                 xmlhttp.onreadystatechange=userlist_callback;
 332                 xmlhttp.send(null);
 333
 334                 sqlexp.value = "";
 335         }
 336
 337 }
 338
 339 function editLabel(id) {
 340
 341         if (!xmlhttp_ready(xmlhttp)) {
 342                 printLockingError();
 343                 return
 344         }
 345
 346         notify_progress("Loading, please wait...");
 347
 348         document.getElementById("label_create_btn").disabled = true;
 349
 350         active_label = id;
 351
 352         selectTableRowsByIdPrefix('prefLabelList', 'LILRR-', 'LICHK-', false);
 353         selectTableRowById('LILRR-'+id, 'LICHK-'+id, true);
 354
 355         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=edit&id=" +
 356                 param_escape(id), true);
 357         xmlhttp.onreadystatechange=infobox_callback;
 358         xmlhttp.send(null);
 359
 360 }
 361
 362 function editUser(id) {
 363
 364         if (!xmlhttp_ready(xmlhttp)) {
 365                 printLockingError();
 366                 return
 367         }
 368
 369         notify_progress("Loading, please wait...");
 370
 371         selectTableRowsByIdPrefix('prefUserList', 'UMRR-', 'UMCHK-', false);
 372         selectTableRowById('UMRR-'+id, 'UMCHK-'+id, true);
 373
 374         xmlhttp.open("GET", "backend.php?op=pref-users&subop=edit&id=" +
 375                 param_escape(id), true);
 376         xmlhttp.onreadystatechange=infobox_callback;
 377         xmlhttp.send(null);
 378
 379 }
 380
 381 function editFilter(id) {
 382
 383         if (!xmlhttp_ready(xmlhttp)) {
 384                 printLockingError();
 385                 return
 386         }
 387
 388         notify_progress("Loading, please wait...");
 389
 390         document.getElementById("create_filter_btn").disabled = true;
 391
 392         selectTableRowsByIdPrefix('prefFilterList', 'FILRR-', 'FICHK-', false);
 393         selectTableRowById('FILRR-'+id, 'FICHK-'+id, true);
 394
 395         xmlhttp.open("GET", "backend.php?op=pref-filters&subop=edit&id=" + param_escape(id), true);
 396         xmlhttp.onreadystatechange=infobox_callback;
 397         xmlhttp.send(null);
 398 }
 399
 400 function editFeed(feed) {
 401
 402 //      notify("Editing feed...");
 403
 404         if (!xmlhttp_ready(xmlhttp)) {
 405                 printLockingError();
 406                 return
 407         }
 408
 409         notify_progress("Loading, please wait...");
 410
 411         document.getElementById("subscribe_to_feed_btn").disabled = true;
 412
 413         try {
 414                 document.getElementById("top25_feeds_btn").disabled = true;
 415         } catch (e) {
 416                 // this button is not always available, no-op if not found
 417         }
 418
 419         // clean selection from all rows & select row being edited
 420         selectTableRowsByIdPrefix('prefFeedList', 'FEEDR-', 'FRCHK-', false);
 421         selectTableRowById('FEEDR-'+feed, 'FRCHK-'+feed, true);
 422
 423         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editfeed&id=" +
 424                 param_escape(feed), true);
 425
 426         xmlhttp.onreadystatechange=infobox_callback;
 427         xmlhttp.send(null);
 428
 429 }
 430
 431 function editFeedCat(cat) {
 432
 433         if (!xmlhttp_ready(xmlhttp)) {
 434                 printLockingError();
 435                 return
 436         }
 437
 438         notify_progress("Loading, please wait...");
 439
 440         active_feed_cat = cat;
 441
 442         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=edit&id=" +
 443                 param_escape(cat), true);
 444         xmlhttp.onreadystatechange=infobox_callback;
 445         xmlhttp.send(null);
 446
 447 }
 448
 449 function getSelectedLabels() {
 450         return getSelectedTableRowIds("prefLabelList", "LILRR");
 451 }
 452
 453 function getSelectedUsers() {
 454         return getSelectedTableRowIds("prefUserList", "UMRR");
 455 }
 456
 457 function getSelectedFeeds() {
 458         return getSelectedTableRowIds("prefFeedList", "FEEDR");
 459 }
 460
 461 function getSelectedFilters() {
 462         return getSelectedTableRowIds("prefFilterList", "FILRR");
 463 }
 464
 465 function getSelectedFeedCats() {
 466         return getSelectedTableRowIds("prefFeedCatList", "FCATR");
 467 }
 468
 469 function getSelectedFeedsFromBrowser() {
 470
 471         var list = document.getElementById("browseFeedList");
 472         if (!list) list = document.getElementById("browseBigFeedList");
 473
 474         var selected = new Array();
 475
 476         for (i = 0; i < list.childNodes.length; i++) {
 477                 var child = list.childNodes[i];
 478                 if (child.id && child.id.match("FBROW-")) {
 479                         var id = child.id.replace("FBROW-", "");
 480
 481                         var cb = document.getElementById("FBCHK-" + id);
 482
 483                         if (cb.checked) {
 484                                 selected.push(id);
 485                         }
 486                 }
 487         }
 488
 489         return selected;
 490 }
 491
 492 function removeSelectedLabels() {
 493
 494         if (!xmlhttp_ready(xmlhttp)) {
 495                 printLockingError();
 496                 return
 497         }
 498
 499         var sel_rows = getSelectedLabels();
 500
 501         if (sel_rows.length > 0) {
 502
 503                 var ok = confirm("Remove selected labels?");
 504
 505                 if (ok) {
 506                         notify_progress("Removing selected labels...");
 507
 508                         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=remove&ids="+
 509                                 param_escape(sel_rows.toString()), true);
 510                         xmlhttp.onreadystatechange=labellist_callback;
 511                         xmlhttp.send(null);
 512                 }
 513         } else {
 514                 alert("No labels are selected.");
 515         }
 516
 517         return false;
 518 }
 519
 520 function removeSelectedUsers() {
 521
 522         if (!xmlhttp_ready(xmlhttp)) {
 523                 printLockingError();
 524                 return
 525         }
 526
 527         var sel_rows = getSelectedUsers();
 528
 529         if (sel_rows.length > 0) {
 530
 531                 var ok = confirm("Remove selected users?");
 532
 533                 if (ok) {
 534                         notify_progress("Removing selected users...");
 535
 536                         xmlhttp.open("GET", "backend.php?op=pref-users&subop=remove&ids="+
 537                                 param_escape(sel_rows.toString()), true);
 538                         xmlhttp.onreadystatechange=userlist_callback;
 539                         xmlhttp.send(null);
 540                 }
 541
 542         } else {
 543                 alert("No users are selected.");
 544         }
 545
 546         return false;
 547 }
 548
 549 function removeSelectedFilters() {
 550
 551         if (!xmlhttp_ready(xmlhttp)) {
 552                 printLockingError();
 553                 return
 554         }
 555
 556         var sel_rows = getSelectedFilters();
 557
 558         if (sel_rows.length > 0) {
 559
 560                 var ok = confirm("Remove selected filters?");
 561
 562                 if (ok) {
 563                         notify_progress("Removing selected filters...");
 564
 565                         xmlhttp.open("GET", "backend.php?op=pref-filters&subop=remove&ids="+
 566                                 param_escape(sel_rows.toString()), true);
 567                         xmlhttp.onreadystatechange=filterlist_callback;
 568                         xmlhttp.send(null);
 569                 }
 570         } else {
 571                 alert("No filters are selected.");
 572         }
 573
 574         return false;
 575 }
 576
 577
 578 function removeSelectedFeeds() {
 579
 580         if (!xmlhttp_ready(xmlhttp)) {
 581                 printLockingError();
 582                 return
 583         }
 584
 585         var sel_rows = getSelectedFeeds();
 586
 587         if (sel_rows.length > 0) {
 588
 589                 var ok = confirm("Unsubscribe from selected feeds?");
 590
 591                 if (ok) {
 592
 593                         notify_progress("Unsubscribing from selected feeds...");
 594
 595                         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=remove&ids="+
 596                                 param_escape(sel_rows.toString()), true);
 597                         xmlhttp.onreadystatechange=feedlist_callback;
 598                         xmlhttp.send(null);
 599                 }
 600
 601         } else {
 602
 603                 alert("No feeds are selected.");
 604
 605         }
 606
 607         return false;
 608 }
 609
 610 function removeSelectedFeedCats() {
 611
 612         if (!xmlhttp_ready(xmlhttp)) {
 613                 printLockingError();
 614                 return
 615         }
 616
 617         var sel_rows = getSelectedFeedCats();
 618
 619         if (sel_rows.length > 0) {
 620
 621                 var ok = confirm("Remove selected categories?");
 622
 623                 if (ok) {
 624                         notify_progress("Removing selected categories...");
 625
 626                         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=remove&ids="+
 627                                 param_escape(sel_rows.toString()), true);
 628                         xmlhttp.onreadystatechange=infobox_callback;
 629                         xmlhttp.send(null);
 630                 }
 631
 632         } else {
 633
 634                 alert("No categories are selected.");
 635
 636         }
 637
 638         return false;
 639 }
 640
 641 function feedEditCancel() {
 642
 643         if (!xmlhttp_ready(xmlhttp)) {
 644                 printLockingError();
 645                 return
 646         }
 647
 648         document.getElementById("subscribe_to_feed_btn").disabled = false;
 649
 650         try {
 651                 document.getElementById("top25_feeds_btn").disabled = false;
 652         } catch (e) {
 653                 // this button is not always available, no-op if not found
 654         }
 655
 656         closeInfoBox();
 657
 658         selectPrefRows('feed', false); // cleanup feed selection
 659
 660         return false;
 661 }
 662
 663 function feedCatEditCancel() {
 664
 665         if (!xmlhttp_ready(xmlhttp)) {
 666                 printLockingError();
 667                 return
 668         }
 669
 670         active_feed_cat = false;
 671
 672 //      notify("Operation cancelled.");
 673
 674         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats", true);
 675         xmlhttp.onreadystatechange=infobox_callback;
 676         xmlhttp.send(null);
 677
 678         return false;
 679 }
 680
 681 function feedEditSave() {
 682
 683         try {
 684
 685                 if (!xmlhttp_ready(xmlhttp)) {
 686                         printLockingError();
 687                         return
 688                 }
 689
 690                 // FIXME: add parameter validation
 691
 692                 var query = Form.serialize("edit_feed_form");
 693
 694                 notify_progress("Saving feed...");
 695
 696                 xmlhttp.open("POST", "backend.php", true);
 697                 xmlhttp.onreadystatechange=feedlist_callback;
 698                 xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
 699                 xmlhttp.send(query);
 700
 701                 closeInfoBox();
 702
 703                 return false;
 704
 705         } catch (e) {
 706                 exception_error("feedEditSave", e);
 707         }
 708 }
 709
 710 function feedCatEditSave() {
 711
 712         if (!xmlhttp_ready(xmlhttp)) {
 713                 printLockingError();
 714                 return
 715         }
 716
 717         notify_progress("Saving category...");
 718
 719         var query = Form.serialize("feed_cat_edit_form");
 720
 721         xmlhttp.open("GET", "backend.php?" + query, true);
 722         xmlhttp.onreadystatechange=infobox_callback;
 723         xmlhttp.send(null);
 724
 725         active_feed_cat = false;
 726
 727         return false;
 728 }
 729
 730
 731 function labelTest() {
 732
 733         var container = document.getElementById('label_test_result');
 734         container.style.display = "block";
 735         container.innerHTML = "<p>Loading, please wait...</p>";
 736
 737         var form = document.forms['label_edit_form'];
 738
 739         var sql_exp = form.sql_exp.value;
 740         var description = form.description.value;
 741
 742         xmlhttp.open("GET", "backend.php?op=pref-labels&subop=test&expr=" +
 743                 param_escape(sql_exp) + "&descr=" + param_escape(description), true);
 744
 745         xmlhttp.onreadystatechange=labeltest_callback;
 746         xmlhttp.send(null);
 747
 748         return false;
 749 }
 750
 751 function displayHelpInfobox(topic_id) {
 752
 753 /*      if (!xmlhttp_ready(xmlhttp)) {
 754                 printLockingError();
 755                 return
 756         }
 757
 758         notify_progress("Loading help...");
 759
 760         xmlhttp.open("GET", "backend.php?op=help&tid=" +
 761                 param_escape(topic_id), true);
 762
 763         xmlhttp.onreadystatechange=helpbox_callback;
 764         xmlhttp.send(null); */
 765
 766         var url = "backend.php?op=help&tid=" + param_escape(topic_id);
 767
 768         var w = window.open(url, "ttrss_help",
 769                 "status=0,toolbar=0,location=0,width=400,height=450,menubar=0");
 770
 771 }
 772
 773 function labelEditCancel() {
 774
 775         if (!xmlhttp_ready(xmlhttp)) {
 776                 printLockingError();
 777                 return
 778         }
 779
 780         document.getElementById("label_create_btn").disabled = false;
 781
 782         active_label = false;
 783
 784         selectPrefRows('label', false); // cleanup feed selection
 785         closeInfoBox();
 786
 787         return false;
 788 }
 789
 790 function userEditCancel() {
 791
 792         if (!xmlhttp_ready(xmlhttp)) {
 793                 printLockingError();
 794                 return
 795         }
 796
 797         selectPrefRows('user', false); // cleanup feed selection
 798         closeInfoBox();
 799
 800         return false;
 801 }
 802
 803 function filterEditCancel() {
 804
 805         if (!xmlhttp_ready(xmlhttp)) {
 806                 printLockingError();
 807                 return
 808         }
 809
 810         document.getElementById("create_filter_btn").disabled = false;
 811
 812         selectPrefRows('filter', false); // cleanup feed selection
 813         closeInfoBox();
 814
 815         return false;
 816 }
 817
 818 function labelEditSave() {
 819
 820         var label = active_label;
 821
 822         if (!xmlhttp_ready(xmlhttp)) {
 823                 printLockingError();
 824                 return
 825         }
 826
 827 /*      if (!is_opera()) {
 828
 829                 var sql_exp = document.forms["label_edit_form"].sql_exp.value;
 830                 var description = document.forms["label_edit_form"].description.value;
 831
 832                 if (sql_exp.length == 0) {
 833                         alert("SQL Expression cannot be blank.");
 834                         return false;
 835                 }
 836
 837                 if (description.length == 0) {
 838                         alert("Caption field cannot be blank.");
 839                         return false;
 840                 }
 841         } */
 842
 843         closeInfoBox();
 844
 845         notify_progress("Saving label...");
 846
 847         active_label = false;
 848
 849         query = Form.serialize("label_edit_form");
 850
 851         xmlhttp.open("GET", "backend.php?" + query, true);
 852         xmlhttp.onreadystatechange=labellist_callback;
 853         xmlhttp.send(null);
 854
 855         return false;
 856 }
 857
 858 function userEditSave() {
 859
 860         if (!xmlhttp_ready(xmlhttp)) {
 861                 printLockingError();
 862                 return
 863         }
 864
 865         var login = document.forms["user_edit_form"].login.value;
 866
 867         if (login.length == 0) {
 868                 alert("Login field cannot be blank.");
 869                 return;
 870         }
 871
 872         notify_progress("Saving user...");
 873
 874         closeInfoBox();
 875
 876         var query = Form.serialize("user_edit_form");
 877
 878         xmlhttp.open("GET", "backend.php?" + query, true);
 879         xmlhttp.onreadystatechange=userlist_callback;
 880         xmlhttp.send(null);
 881
 882         return false;
 883 }
 884
 885
 886 function filterEditSave() {
 887
 888         if (!xmlhttp_ready(xmlhttp)) {
 889                 printLockingError();
 890                 return
 891         }
 892
 893 /*      if (!is_opera()) {
 894                 var reg_exp = document.forms["filter_edit_form"].reg_exp.value;
 895
 896                 if (reg_exp.length == 0) {
 897                         alert("Filter expression field cannot be blank.");
 898                         return;
 899                 }
 900         } */
 901
 902         notify_progress("Saving filter...");
 903
 904         var query = Form.serialize("filter_edit_form");
 905
 906         closeInfoBox();
 907
 908         document.getElementById("create_filter_btn").disabled = false;
 909
 910         xmlhttp.open("GET", "backend.php?" + query, true);
 911         xmlhttp.onreadystatechange=filterlist_callback;
 912         xmlhttp.send(null);
 913
 914         return false;
 915 }
 916
 917 function editSelectedLabel() {
 918         var rows = getSelectedLabels();
 919
 920         if (rows.length == 0) {
 921                 alert(__("No labels are selected."));
 922                 return;
 923         }
 924
 925         if (rows.length > 1) {
 926                 alert(__("Please select only one label."));
 927                 return;
 928         }
 929
 930         notify("");
 931
 932         editLabel(rows[0]);
 933
 934 }
 935
 936 function editSelectedUser() {
 937         var rows = getSelectedUsers();
 938
 939         if (rows.length == 0) {
 940                 alert(__("No users are selected."));
 941                 return;
 942         }
 943
 944         if (rows.length > 1) {
 945                 alert(__("Please select only one user."));
 946                 return;
 947         }
 948
 949         notify("");
 950
 951         editUser(rows[0]);
 952 }
 953
 954 function resetSelectedUserPass() {
 955         var rows = getSelectedUsers();
 956
 957         if (rows.length == 0) {
 958                 alert(__("No users are selected."));
 959                 return;
 960         }
 961
 962         if (rows.length > 1) {
 963                 alert(__("Please select only one user."));
 964                 return;
 965         }
 966
 967         var ok = confirm(__("Reset password of selected user?"));
 968
 969         if (ok) {
 970                 notify_progress("Resetting password for selected user...");
 971
 972                 var id = rows[0];
 973
 974                 xmlhttp.open("GET", "backend.php?op=pref-users&subop=resetPass&id=" +
 975                         param_escape(id), true);
 976                 xmlhttp.onreadystatechange=userlist_callback;
 977                 xmlhttp.send(null);
 978         }
 979 }
 980
 981 function selectedUserDetails() {
 982
 983         if (!xmlhttp_ready(xmlhttp)) {
 984                 printLockingError();
 985                 return
 986         }
 987
 988         var rows = getSelectedUsers();
 989
 990         if (rows.length == 0) {
 991                 alert(__("No users are selected."));
 992                 return;
 993         }
 994
 995         if (rows.length > 1) {
 996                 alert(__("Please select only one user."));
 997                 return;
 998         }
 999
1000         notify_progress("Loading, please wait...");
1001
1002         var id = rows[0];
1003
1004         xmlhttp.open("GET", "backend.php?op=user-details&id=" + id, true);
1005         xmlhttp.onreadystatechange=infobox_callback;
1006         xmlhttp.send(null);
1007
1008 }
1009
1010 function selectedFeedDetails() {
1011
1012         if (!xmlhttp_ready(xmlhttp)) {
1013                 printLockingError();
1014                 return
1015         }
1016
1017         var rows = getSelectedFeeds();
1018
1019         if (rows.length == 0) {
1020                 alert(__("No feeds are selected."));
1021                 return;
1022         }
1023
1024         if (rows.length > 1) {
1025                 alert(__("Please select only one feed."));
1026                 return;
1027         }
1028
1029 //      var id = rows[0];
1030
1031         notify("");
1032
1033         xmlhttp.open("GET", "backend.php?op=feed-details&id=" +
1034                 param_escape(rows.toString()), true);
1035         xmlhttp.onreadystatechange=infobox_callback;
1036         xmlhttp.send(null);
1037
1038 }
1039
1040 function editSelectedFilter() {
1041         var rows = getSelectedFilters();
1042
1043         if (rows.length == 0) {
1044                 alert(__("No filters are selected."));
1045                 return;
1046         }
1047
1048         if (rows.length > 1) {
1049                 alert(__("Please select only one filter."));
1050                 return;
1051         }
1052
1053         notify("");
1054
1055         editFilter(rows[0]);
1056
1057 }
1058
1059
1060 function editSelectedFeed() {
1061         var rows = getSelectedFeeds();
1062
1063         if (rows.length == 0) {
1064                 alert(__("No feeds are selected."));
1065                 return;
1066         }
1067
1068         if (rows.length > 1) {
1069                 alert(__("Please select one feed."));
1070                 return;
1071         }
1072
1073         notify("");
1074
1075         editFeed(rows[0]);
1076
1077 }
1078
1079 function editSelectedFeedCat() {
1080         var rows = getSelectedFeedCats();
1081
1082         if (rows.length == 0) {
1083                 alert(__("No categories are selected."));
1084                 return;
1085         }
1086
1087         if (rows.length > 1) {
1088                 alert(__("Please select only one category."));
1089                 return;
1090         }
1091
1092         notify("");
1093
1094         editFeedCat(rows[0]);
1095
1096 }
1097
1098 function piggie_callback() {
1099         var piggie = document.getElementById("piggie");
1100
1101         piggie.style.top = piggie_top;
1102         piggie.style.backgroundColor = "white";
1103         piggie.style.borderWidth = "1px";
1104
1105         if (piggie_fwd && piggie_top < 0) {
1106                 setTimeout("piggie_callback()", 50);
1107                 piggie_top = piggie_top + 10;
1108         } else if (piggie_fwd && piggie_top >= 0) {
1109                 piggie_fwd = false;
1110                 setTimeout("piggie_callback()", 50);
1111         } else if (!piggie_fwd && piggie_top > -400) {
1112                 setTimeout("piggie_callback()", 50);
1113                 piggie_top = piggie_top - 10;
1114         } else if (!piggie_fwd && piggie_top <= -400) {
1115                 piggie.style.display = "none";
1116                 piggie_fwd = true;
1117         }
1118 }
1119
1120 var piggie_opacity = 0;
1121
1122 function piggie2_callback() {
1123         var piggie = document.getElementById("piggie");
1124         piggie.style.top = 0;
1125         piggie.style.opacity = piggie_opacity;
1126         piggie.style.backgroundColor = "transparent";
1127         piggie.style.borderWidth = "0px";
1128
1129         if (piggie_fwd && piggie_opacity < 1) {
1130                 setTimeout("piggie2_callback()", 50);
1131                 piggie_opacity = piggie_opacity + 0.03;
1132         } else if (piggie_fwd && piggie_opacity >= 1) {
1133                 piggie_fwd = false;
1134                 setTimeout("piggie2_callback()", 50);
1135         } else if (!piggie_fwd && piggie_opacity > 0) {
1136                 setTimeout("piggie2_callback()", 50);
1137                 piggie_opacity = piggie_opacity - 0.03;
1138         } else if (!piggie_fwd && piggie_opacity <= 0) {
1139                 piggie.style.display = "none";
1140                 piggie_fwd = true;
1141         }
1142 }
1143
1144 function localPiggieFunction(enable) {
1145         if (enable) {
1146                 debug("I LOVEDED IT!");
1147                 var piggie = document.getElementById("piggie");
1148                 piggie.style.display = "block";
1149
1150                 if (navigator.userAgent.match("Gecko") && Math.random(1) > 0.5) {
1151                         piggie2_callback();
1152                 } else {
1153                         piggie_callback();
1154                 }
1155         }
1156 }
1157
1158 function validateOpmlImport() {
1159
1160         var opml_file = document.getElementById("opml_file");
1161
1162         if (opml_file.value.length == 0) {
1163                 alert(__("No OPML file to upload."));
1164                 return false;
1165         } else {
1166                 return true;
1167         }
1168 }
1169
1170 function updateFilterList(sort_key) {
1171
1172         if (!xmlhttp_ready(xmlhttp)) {
1173                 printLockingError();
1174                 return
1175         }
1176
1177 //      document.getElementById("prefContent").innerHTML = "Loading filters, please wait...";
1178
1179 //      p_notify("Loading, please wait...");
1180
1181         xmlhttp.open("GET", "backend.php?op=pref-filters&sort=" +
1182                 param_escape(sort_key), true);
1183         xmlhttp.onreadystatechange=filterlist_callback;
1184         xmlhttp.send(null);
1185
1186 }
1187
1188 function updateLabelList(sort_key) {
1189
1190         if (!xmlhttp_ready(xmlhttp)) {
1191                 printLockingError();
1192                 return
1193         }
1194
1195 //      p_notify("Loading, please wait...");
1196
1197 //      document.getElementById("prefContent").innerHTML = "Loading labels, please wait...";
1198
1199         xmlhttp.open("GET", "backend.php?op=pref-labels&sort=" +
1200                 param_escape(sort_key), true);
1201         xmlhttp.onreadystatechange=labellist_callback;
1202         xmlhttp.send(null);
1203 }
1204
1205 function updatePrefsList() {
1206
1207         if (!xmlhttp_ready(xmlhttp)) {
1208                 printLockingError();
1209                 return
1210         }
1211
1212 //      p_notify("Loading, please wait...");
1213
1214         xmlhttp.open("GET", "backend.php?op=pref-prefs", true);
1215         xmlhttp.onreadystatechange=prefslist_callback;
1216         xmlhttp.send(null);
1217
1218 }
1219
1220 function selectTab(id, noupdate, subop) {
1221
1222 //      alert(id);
1223
1224         if (!id) id = active_tab;
1225
1226         try {
1227
1228                 if (!xmlhttp_ready(xmlhttp)) {
1229                         printLockingError();
1230                         return
1231                 }
1232
1233                 try {
1234                         var c = document.getElementById('prefContent');
1235                         c.scrollTop = 0;
1236                 } catch (e) { };
1237
1238                 if (!noupdate) {
1239
1240                         debug("selectTab: " + id + "(NU: " + noupdate + ")");
1241
1242                         notify_progress("Loading, please wait...");
1243
1244                         // close active infobox if needed
1245                         closeInfoBox();
1246
1247                         // clean up all current selections, just in case
1248                         active_feed_cat = false;
1249                         active_label = false;
1250
1251                         if (id == "feedConfig") {
1252                                 updateFeedList();
1253                         } else if (id == "filterConfig") {
1254                                 updateFilterList();
1255                         } else if (id == "labelConfig") {
1256                                 updateLabelList();
1257                         } else if (id == "genConfig") {
1258                                 updatePrefsList();
1259                         } else if (id == "userConfig") {
1260                                 updateUsersList();
1261                         } else if (id == "feedBrowser") {
1262                                 updateBigFeedBrowser();
1263                         }
1264                 }
1265
1266                 var tab = document.getElementById(active_tab + "Tab");
1267
1268                 if (tab) {
1269                         if (tab.className.match("Selected")) {
1270                                 tab.className = "prefsTab";
1271                         }
1272                 }
1273
1274                 tab = document.getElementById(id + "Tab");
1275
1276                 if (tab) {
1277                         if (!tab.className.match("Selected")) {
1278                                 tab.className = tab.className + "Selected";
1279                         }
1280                 }
1281
1282                 active_tab = id;
1283
1284         } catch (e) {
1285                 exception_error("selectTab", e);
1286         }
1287 }
1288
1289 function backend_sanity_check_callback() {
1290
1291         if (xmlhttp.readyState == 4) {
1292
1293                 try {
1294
1295                         if (sanity_check_done) {
1296                                 fatalError(11, "Sanity check request received twice. This can indicate "+
1297                               "presence of Firebug or some other disrupting extension. "+
1298                                         "Please disable it and try again.");
1299                                 return;
1300                         }
1301
1302                         if (!xmlhttp.responseXML) {
1303                                 fatalError(3, "[D001, Received reply is not XML]: " + xmlhttp.responseText);
1304                                 return;
1305                         }
1306
1307                         var reply = xmlhttp.responseXML.firstChild.firstChild;
1308
1309                         if (!reply) {
1310                                 fatalError(3, "[D002, Invalid RPC reply]: " + xmlhttp.responseText);
1311                                 return;
1312                         }
1313
1314                         var error_code = reply.getAttribute("error-code");
1315
1316                         if (error_code && error_code != 0) {
1317                                 return fatalError(error_code, reply.getAttribute("error-msg"));
1318                         }
1319
1320                         debug("sanity check ok");
1321
1322                         var params = reply.nextSibling;
1323
1324                         if (params) {
1325                                 debug('reading init-params...');
1326                                 var param = params.firstChild;
1327
1328                                 while (param) {
1329                                         var k = param.getAttribute("key");
1330                                         var v = param.getAttribute("value");
1331                                         debug(k + " => " + v);
1332                                         init_params[k] = v;
1333                                         param = param.nextSibling;
1334                                 }
1335                         }
1336
1337                         sanity_check_done = true;
1338
1339                         init_second_stage();
1340
1341                 } catch (e) {
1342                         exception_error("backend_sanity_check_callback", e);
1343                 }
1344         }
1345 }
1346
1347 function init_second_stage() {
1348
1349         try {
1350                 active_tab = getInitParam("prefs_active_tab");
1351                 if (!active_tab || active_tab == '0') active_tab = "genConfig";
1352
1353                 document.onkeydown = pref_hotkey_handler;
1354
1355                 var tab = getURLParam('tab');
1356
1357                 caller_subop = getURLParam('subop');
1358
1359                 if (tab) {
1360                         active_tab = tab;
1361                 }
1362
1363                 if (navigator.userAgent.match("Opera")) {
1364                         setTimeout("selectTab()", 500);
1365                 } else {
1366                         selectTab(active_tab);
1367                 }
1368                 notify("");
1369         } catch (e) {
1370                 exception_error("init_second_stage", e);
1371         }
1372 }
1373
1374 function init() {
1375
1376         try {
1377
1378                 if (arguments.callee.done) return;
1379                 arguments.callee.done = true;
1380
1381                 if (getURLParam('debug')) {
1382                         document.getElementById('debug_output').style.display = 'block';
1383                         debug('debug mode activated');
1384                 }
1385
1386                 // IE kludge
1387                 if (!xmlhttp) {
1388                         document.getElementById("prefContent").innerHTML =
1389                                 "<b>Fatal error:</b> This program needs XmlHttpRequest " +
1390                                 "to function properly. Your browser doesn't seem to support it.";
1391                         return;
1392                 }
1393
1394                 xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
1395                 xmlhttp.onreadystatechange=backend_sanity_check_callback;
1396                 xmlhttp.send(null);
1397
1398         } catch (e) {
1399                 exception_error("init", e);
1400         }
1401 }
1402
1403 function categorizeSelectedFeeds() {
1404
1405         if (!xmlhttp_ready(xmlhttp)) {
1406                 printLockingError();
1407                 return
1408         }
1409
1410         var sel_rows = getSelectedFeeds();
1411
1412         var cat_sel = document.getElementById("sfeed_set_fcat");
1413         var cat_id = cat_sel[cat_sel.selectedIndex].value;
1414
1415         if (sel_rows.length > 0) {
1416
1417                 notify_progress("Changing category of selected feeds...");
1418
1419                 xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=categorize&ids="+
1420                         param_escape(sel_rows.toString()) + "&cat_id=" + param_escape(cat_id), true);
1421                 xmlhttp.onreadystatechange=feedlist_callback;
1422                 xmlhttp.send(null);
1423
1424         } else {
1425
1426                 alert(__("No feeds are selected."));
1427
1428         }
1429
1430 }
1431
1432 function validatePrefsReset() {
1433         return confirm(__("Reset to defaults?"));
1434 }
1435
1436 function browseFeeds(limit) {
1437
1438         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=browse", true);
1439         xmlhttp.onreadystatechange=infobox_callback;
1440         xmlhttp.send(null);
1441
1442 }
1443
1444 function feedBrowserSubscribe() {
1445         try {
1446
1447                 var selected = getSelectedFeedsFromBrowser();
1448
1449                 if (selected.length > 0) {
1450                         closeInfoBox();
1451                         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=massSubscribe&ids="+
1452                                 param_escape(selected.toString()), true);
1453                         xmlhttp.onreadystatechange=feedlist_callback;
1454                         xmlhttp.send(null);
1455                 } else {
1456                         alert("No feeds are selected.");
1457                 }
1458
1459         } catch (e) {
1460                 exception_error("feedBrowserSubscribe", e);
1461         }
1462 }
1463
1464 function updateBigFeedBrowser(limit) {
1465
1466         if (!xmlhttp_ready(xmlhttp)) {
1467                 printLockingError();
1468                 return
1469         }
1470
1471 //      p_notify("Loading, please wait...");
1472
1473         var query = "backend.php?op=pref-feed-browser";
1474
1475         var limit_sel = document.getElementById("feedBrowserLimit");
1476
1477         if (limit_sel) {
1478                 var limit = limit_sel[limit_sel.selectedIndex].value;
1479                 query = query + "&limit=" + param_escape(limit);
1480         }
1481
1482         xmlhttp.open("GET", query, true);
1483         xmlhttp.onreadystatechange=feed_browser_callback;
1484         xmlhttp.send(null);
1485 }
1486
1487 function browserToggleExpand(id) {
1488         try {
1489 /*              if (feed_to_expand && feed_to_expand != id) {
1490                         var d = document.getElementById("BRDET-" + feed_to_expand);
1491                         d.style.display = "none";
1492                 } */
1493
1494                 if (!xmlhttp_ready(xmlhttp)) {
1495                         printLockingError();
1496                         return
1497                 }
1498
1499                 var d = document.getElementById("BRDET-" + id);
1500
1501                 if (d.style.display == "block") {
1502                         d.style.display = "none";
1503
1504                 } else {
1505
1506                         feed_to_expand = id;
1507
1508                         d.style.display = "block";
1509                         d.innerHTML = "Loading, please wait...";
1510
1511                         xmlhttp.open("GET", "backend.php?op=pref-feed-browser&subop=details&id="
1512                                 + param_escape(id), true);
1513                         xmlhttp.onreadystatechange=expand_feed_callback;
1514                         xmlhttp.send(null);
1515                 }
1516
1517         } catch (e) {
1518                 exception_error("browserExpand", e);
1519         }
1520 }
1521
1522 function selectPrefRows(kind, select) {
1523
1524         if (kind) {
1525                 var opbarid = false;
1526                 var nchk = false;
1527                 var nrow = false;
1528                 var lname = false;
1529
1530                 if (kind == "feed") {
1531                         opbarid = "feedOpToolbar";
1532                         nrow = "FEEDR-";
1533                         nchk = "FRCHK-";
1534                         lname = "prefFeedList";
1535                 } else if (kind == "fcat") {
1536                         opbarid = "catOpToolbar";
1537                         nrow = "FCATR-";
1538                         nchk = "FCCHK-";
1539                         lname = "prefFeedCatList";
1540                 } else if (kind == "filter") {
1541                         opbarid = "filterOpToolbar";
1542                         nrow = "FILRR-";
1543                         nchk = "FICHK-";
1544                         lname = "prefFilterList";
1545                 } else if (kind == "label") {
1546                         opbarid = "labelOpToolbar";
1547                         nrow = "LILRR-";
1548                         nchk = "LICHK-";
1549                         lname = "prefLabelList";
1550                 } else if (kind == "user") {
1551                         opbarid = "userOpToolbar";
1552                         nrow = "UMRR-";
1553                         nchk = "UMCHK-";
1554                         lname = "prefUserList";
1555                 }
1556
1557                 if (opbarid) {
1558                         selectTableRowsByIdPrefix(lname, nrow, nchk, select);
1559                         disableContainerChildren(opbarid, !select);
1560                 }
1561
1562         }
1563 }
1564
1565
1566 function toggleSelectPrefRow(sender, kind) {
1567
1568         toggleSelectRow(sender);
1569
1570         if (kind) {
1571                 var opbarid = false;
1572                 var nsel = -1;
1573
1574                 if (kind == "feed") {
1575                         opbarid = "feedOpToolbar";
1576                         nsel = getSelectedFeeds();
1577                 } else if (kind == "fcat") {
1578                         opbarid = "catOpToolbar";
1579                         nsel = getSelectedFeedCats();
1580                 } else if (kind == "filter") {
1581                         opbarid = "filterOpToolbar";
1582                         nsel = getSelectedFilters();
1583                 } else if (kind == "label") {
1584                         opbarid = "labelOpToolbar";
1585                         nsel = getSelectedLabels();
1586                 } else if (kind == "user") {
1587                         opbarid = "userOpToolbar";
1588                         nsel = getSelectedUsers();
1589                 }
1590
1591                 if (opbarid && nsel != -1) {
1592                         disableContainerChildren(opbarid, nsel == false);
1593                 }
1594
1595         }
1596 }
1597
1598 function toggleSelectFBListRow(sender) {
1599         toggleSelectListRow(sender);
1600         disableContainerChildren("fbrOpToolbar", getSelectedFeedsFromBrowser() == 0);
1601 }
1602
1603 var seq = "";
1604
1605 function pref_hotkey_handler(e) {
1606         try {
1607
1608                 var keycode;
1609
1610                 if (!hotkeys_enabled) return;
1611
1612                 if (window.event) {
1613                         keycode = window.event.keyCode;
1614                 } else if (e) {
1615                         keycode = e.which;
1616                 }
1617
1618                 if (keycode == 13 || keycode == 27) {
1619                         seq = "";
1620                 } else {
1621                         seq = seq + "" + keycode;
1622                 }
1623
1624
1625         if (document.getElementById("piggie")) {
1626
1627                 if (seq.match("807371717369")) {
1628                         seq = "";
1629                         localPiggieFunction(true);
1630                 } else {
1631                         localPiggieFunction(false);
1632                 }
1633         }
1634
1635         } catch (e) {
1636                 exception_error("pref_hotkey_handler", e);
1637         }
1638 }
1639
1640 function userSwitch() {
1641         var chooser = document.getElementById("userSwitch");
1642         var user = chooser[chooser.selectedIndex].value;
1643         window.location = "prefs.php?swu=" + user;
1644 }
1645
1646 function editFeedCats() {
1647         if (!xmlhttp_ready(xmlhttp)) {
1648                 printLockingError();
1649                 return
1650         }
1651
1652         document.getElementById("subscribe_to_feed_btn").disabled = true;
1653
1654         try {
1655                 document.getElementById("top25_feeds_btn").disabled = true;
1656         } catch (e) {
1657                 // this button is not always available, no-op if not found
1658         }
1659
1660         xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats", true);
1661         xmlhttp.onreadystatechange=infobox_callback;
1662         xmlhttp.send(null);
1663 }
1664
1665 function showFeedsWithErrors() {
1666         displayDlg('feedUpdateErrors');
1667 }
1668
1669 function changeUserPassword() {
1670
1671         try {
1672
1673                 if (!xmlhttp_ready(xmlhttp)) {
1674                         printLockingError();
1675                         return false;
1676                 }
1677
1678                 var query = Form.serialize("change_pass_form");
1679
1680                 notify_progress("Trying to change password...");
1681
1682                 xmlhttp.open("POST", "backend.php", true);
1683                 xmlhttp.onreadystatechange=changepass_callback;
1684                 xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1685                 xmlhttp.send(query);
1686
1687         } catch (e) {
1688                 exception_error("changeUserPassword", e);
1689         }
1690
1691         return false;
1692 }
1693
1694 function changeUserEmail() {
1695
1696         try {
1697
1698                 if (!xmlhttp_ready(xmlhttp)) {
1699                         printLockingError();
1700                         return false;
1701                 }
1702
1703                 var query = Form.serialize("change_email_form");
1704
1705                 notify_progress("Trying to change e-mail...");
1706
1707                 xmlhttp.open("POST", "backend.php", true);
1708                 xmlhttp.onreadystatechange=notify_callback;
1709                 xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
1710                 xmlhttp.send(query);
1711
1712         } catch (e) {
1713                 exception_error("changeUserPassword", e);
1714         }
1715
1716         return false;
1717
1718 }