]> git.wh0rd.org - tt-rss.git/blobdiff - functions.js
replace some theme-specific frontend hooks with theme options
[tt-rss.git] / functions.js
index 6fe449239306dd5447217302df2940b881f1ff5e..0c4eaf353760d89990a956cc4b3665819fcf14a0 100644 (file)
@@ -1,8 +1,7 @@
 var hotkeys_enabled = true;
-var debug_mode_enabled = false;
-var xmlhttp_rpc = Ajax.getTransport();
 var notify_silent = false;
 var last_progress_point = 0;
+var async_counters_work = false;
 
 /* add method to remove element from array */
 
@@ -12,28 +11,50 @@ Array.prototype.remove = function(s) {
        }
 }
 
-function browser_has_opacity() {
-       return navigator.userAgent.match("Gecko") != null || 
-               navigator.userAgent.match("Opera") != null;
+function is_opera() {
+       return window.opera;
 }
 
-function is_msie() {
-       return navigator.userAgent.match("MSIE");
-}
+function exception_error(location, e, ext_info) {
+       var msg = format_exception_error(location, e);
 
-function is_opera() {
-       return navigator.userAgent.match("Opera");
-}
+       if (!ext_info) ext_info = "N/A";
 
-function is_khtml() {
-       return navigator.userAgent.match("KHTML");
-}
+       disableHotkeys();
+
+       try {
+
+               var ebc = $("xebContent");
+       
+               if (ebc) {
+       
+                       Element.show("dialog_overlay");
+                       Element.show("errorBoxShadow");
+       
+                       if (ext_info) {
+                               if (ext_info.responseText) {
+                                       ext_info = ext_info.responseText;
+                               }
+                       }
+       
+                       ebc.innerHTML = 
+                               "<div><b>Error message:</b></div>" +
+                               "<pre>" + msg + "</pre>" +
+                               "<div><b>Additional information:</b></div>" +
+                               "<textarea readonly=\"1\">" + ext_info + "</textarea>";
+       
+               } else {
+                       alert(msg);
+               }
+
+       } catch (e) {
+               alert(msg);
+
+       }
 
-function is_safari() {
-       return navigator.userAgent.match("Safari");
 }
 
-function exception_error(location, e, silent) {
+function format_exception_error(location, e) {
        var msg;
 
        if (e.fileName) {
@@ -42,18 +63,19 @@ function exception_error(location, e, silent) {
                msg = "Exception: " + e.name + ", " + e.message + 
                        "\nFunction: " + location + "()" +
                        "\nLocation: " + base_fname + ":" + e.lineNumber;
-               
+
+       } else if (e.description) {
+               msg = "Exception: " + e.description + "\nFunction: " + location + "()";
        } else {
                msg = "Exception: " + e + "\nFunction: " + location + "()";
        }
 
        debug("<b>EXCEPTION: " + msg + "</b>");
 
-       if (!silent) {
-               alert(msg);
-       }
+       return msg;
 }
 
+
 function disableHotkeys() {
        hotkeys_enabled = false;
 }
@@ -62,48 +84,6 @@ function enableHotkeys() {
        hotkeys_enabled = true;
 }
 
-function xmlhttp_ready(obj) {
-       return obj.readyState == 4 || obj.readyState == 0 || !obj.readyState;
-}
-
-function open_article_callback(transport) {
-       try {
-
-               if (transport.responseXML) {
-                       
-                       var link = transport.responseXML.getElementsByTagName("link")[0];
-                       var id = transport.responseXML.getElementsByTagName("id")[0];
-
-                       debug("open_article_callback, received link: " + link);
-
-                       if (link && id) {
-
-                               var wname = "ttrss_article_" + id.firstChild.nodeValue;
-
-                               debug("link url: " + link.firstChild.nodeValue + ", wname " + wname);
-
-                               var w = window.open(link.firstChild.nodeValue, wname);
-
-                               if (!w) { notify_error("Failed to load article in new window"); }
-
-                               if (id) {
-                                       id = id.firstChild.nodeValue;
-                                       if (!document.getElementById("headlinesList")) {
-                                               window.setTimeout("toggleUnread(" + id + ", 0)", 100);
-                                       }
-                               }
-                       } else {
-                               notify_error("Can't open article: received invalid article link");
-                       }
-               } else {
-                       notify_error("Can't open article: received invalid XML");
-               }
-
-       } catch (e) {
-               exception_error("open_article_callback", e);
-       }
-}
-
 function param_escape(arg) {
        if (typeof encodeURIComponent != 'undefined')
                return encodeURIComponent(arg); 
@@ -130,7 +110,7 @@ function delay(gap) {
 var notify_hide_timerid = false;
 
 function hide_notify() {
-       var n = document.getElementById("notify");
+       var n = $("notify");
        if (n) {
                n.style.display = "none";
        }
@@ -147,8 +127,8 @@ function notify_real(msg, no_hide, n_type) {
                return;
        }
 
-       var n = document.getElementById("notify");
-       var nb = document.getElementById("notify_body");
+       var n = $("notify");
+       var nb = $("notify_body");
 
        if (!n || !nb) return;
 
@@ -182,13 +162,13 @@ function notify_real(msg, no_hide, n_type) {
                n.className = "notify";
        } else if (n_type == 2) {
                n.className = "notifyProgress";
-               msg = "<img src='images/indicator_white.gif'> " + msg;
+               msg = "<img src='"+getInitParam("sign_progress")+"'> " + msg;
        } else if (n_type == 3) {
                n.className = "notifyError";
-               msg = "<img src='images/sign_excl.gif'> " + msg;
+               msg = "<img src='"+getInitParam("sign_excl")+"'> " + msg;
        } else if (n_type == 4) {
                n.className = "notifyInfo";
-               msg = "<img src='images/sign_info.gif'> " + msg;
+               msg = "<img src='"+getInitParam("sign_info")+"'> " + msg;
        }
 
 //     msg = "<img src='images/live_com_loading.gif'> " + msg;
@@ -221,36 +201,8 @@ function printLockingError() {
        notify_info("Please wait until operation finishes.");
 }
 
-function cleanSelectedList(element) {
-       var content = document.getElementById(element);
-
-       if (!document.getElementById("feedCatHolder")) {
-               for (i = 0; i < content.childNodes.length; i++) {
-                       var child = content.childNodes[i];
-                       try {
-                               child.className = child.className.replace("Selected", "");
-                       } catch (e) {
-                               //
-                       }
-               }
-       } else {
-               for (i = 0; i < content.childNodes.length; i++) {
-                       var child = content.childNodes[i];
-                       if (child.id == "feedCatHolder") {
-                               debug(child.id);
-                               var fcat = child.lastChild;
-                               for (j = 0; j < fcat.childNodes.length; j++) {
-                                       var feed = fcat.childNodes[j];
-                                       feed.className = feed.className.replace("Selected", "");
-                               }               
-                       }
-               } 
-       }
-}
-
-
 function cleanSelected(element) {
-       var content = document.getElementById(element);
+       var content = $(element);
 
        for (i = 0; i < content.rows.length; i++) {
                content.rows[i].className = content.rows[i].className.replace("Selected", "");
@@ -258,10 +210,12 @@ function cleanSelected(element) {
 }
 
 function getVisibleUnreadHeadlines() {
-       var content = document.getElementById("headlinesList");
+       var content = $("headlinesList");
 
        var rows = new Array();
 
+       if (!content) return rows;
+
        for (i = 0; i < content.rows.length; i++) {
                var row_id = content.rows[i].id.replace("RROW-", "");
                if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
@@ -273,10 +227,12 @@ function getVisibleUnreadHeadlines() {
 
 function getVisibleHeadlineIds() {
 
-       var content = document.getElementById("headlinesList");
+       var content = $("headlinesList");
 
        var rows = new Array();
 
+       if (!content) return rows;
+
        for (i = 0; i < content.rows.length; i++) {
                var row_id = content.rows[i].id.replace("RROW-", "");
                if (row_id.length > 0) {
@@ -307,7 +263,7 @@ function getLastVisibleHeadlineId() {
 }
 
 function markHeadline(id) {
-       var row = document.getElementById("RROW-" + id);
+       var row = $("RROW-" + id);
        if (row) {
                var is_active = false;
        
@@ -322,7 +278,7 @@ function markHeadline(id) {
                        row.className = row.className = "Active";
                }
                
-               var check = document.getElementById("RCHK-" + id);
+               var check = $("RCHK-" + id);
 
                if (check) {
                        check.checked = true;
@@ -334,7 +290,7 @@ function markHeadline(id) {
 }
 
 function getFeedIds() {
-       var content = document.getElementById("feedsList");
+       var content = $("feedsList");
 
        var rows = new Array();
 
@@ -404,7 +360,7 @@ function disableContainerChildren(id, disable, doc) {
 
        if (!doc) doc = document;
 
-       var container = doc.getElementById(id);
+       var container = $(id);
 
        if (!container) {
                //alert("disableContainerChildren: element " + id + " not found");
@@ -445,30 +401,6 @@ function gotoExportOpml() {
        document.location.href = "opml.php?op=Export";
 }
 
-function getActiveFeedId() {
-//     return getCookie("ttrss_vf_actfeed");
-       try {
-               debug("gAFID: " + active_feed_id);
-               return active_feed_id;
-       } catch (e) {
-               exception_error("getActiveFeedId", e);
-       }
-}
-
-function activeFeedIsCat() {
-       return active_feed_is_cat;
-}
-
-function setActiveFeedId(id) {
-//     return setCookie("ttrss_vf_actfeed", id);
-       try {
-               debug("sAFID(" + id + ")");
-               active_feed_id = id;
-       } catch (e) {
-               exception_error("setActiveFeedId", e);
-       }
-}
-
 function parse_counters(reply, scheduled_call) {
        try {
 
@@ -485,8 +417,14 @@ function parse_counters(reply, scheduled_call) {
                        var has_img = elems[l].getAttribute("hi");
                        var updated = elems[l].getAttribute("updated");
                        var title = elems[l].getAttribute("title");
-               
+                       var xmsg = elems[l].getAttribute("xmsg");
+       
                        if (id == "global-unread") {
+
+                               if (ctr > global_unread) {
+                                       offlineDownloadStart(1);
+                               }
+
                                global_unread = ctr;
                                updateTitle();
                                continue;
@@ -498,7 +436,7 @@ function parse_counters(reply, scheduled_call) {
                        }
        
                        if (t == "category") {
-                               var catctr = document.getElementById("FCATCTR-" + id);
+                               var catctr = $("FCATCTR-" + id);
                                if (catctr) {
                                        catctr.innerHTML = "(" + ctr + ")";
                                        if (ctr > 0) {
@@ -510,12 +448,12 @@ function parse_counters(reply, scheduled_call) {
                                continue;
                        }
                
-                       var feedctr = document.getElementById("FEEDCTR-" + id);
-                       var feedu = document.getElementById("FEEDU-" + id);
-                       var feedr = document.getElementById("FEEDR-" + id);
-                       var feed_img = document.getElementById("FIMG-" + id);
-                       var feedlink = document.getElementById("FEEDL-" + id);
-                       var feedupd = document.getElementById("FLUPD-" + id);
+                       var feedctr = $("FEEDCTR-" + id);
+                       var feedu = $("FEEDU-" + id);
+                       var feedr = $("FEEDR-" + id);
+                       var feed_img = $("FIMG-" + id);
+                       var feedlink = $("FEEDL-" + id);
+                       var feedupd = $("FLUPD-" + id);
 
                        if (updated && feedlink) {
                                if (error) {
@@ -525,15 +463,25 @@ function parse_counters(reply, scheduled_call) {
                                }
                        }
 
-                       if (updated && feedupd) {
+                       if (feedupd) {
+                               if (!updated) updated = "";
+
                                if (error) {
-                                       feedupd.innerHTML = updated + " (Error)";
+                                       if (xmsg) {
+                                               feedupd.innerHTML = updated + " " + xmsg + " (Error)";
+                                       } else {
+                                               feedupd.innerHTML = updated + " (Error)";
+                                       }
                                } else {
-                                       feedupd.innerHTML = updated;
+                                       if (xmsg) {
+                                               feedupd.innerHTML = updated + " " + xmsg;
+                                       } else {
+                                               feedupd.innerHTML = updated;
+                                       }
                                }
                        }
 
-                       if (has_img && feed_img && !is_msie()) {
+                       if (has_img && feed_img) {
                                if (!feed_img.src.match(id + ".ico")) {
                                        feed_img.src = getInitParam("icons_location") + "/" + id + ".ico";
                                }
@@ -545,8 +493,11 @@ function parse_counters(reply, scheduled_call) {
 
                        if (feedctr && feedu && feedr) {
 
-                               if (feedu.innerHTML != ctr && id == getActiveFeedId() && scheduled_call) {
-                                       viewCurrentFeed();
+                               if (parseInt(ctr) > 0 && 
+                                               parseInt(feedu.innerHTML) < parseInt(ctr) && 
+                                               id == getActiveFeedId() && scheduled_call) {
+
+                                       displayNewContentPrompt(id);
                                }
 
                                var row_needs_hl = (ctr > 0 && ctr > parseInt(feedu.innerHTML));
@@ -560,7 +511,7 @@ function parse_counters(reply, scheduled_call) {
                                }
        
                                if (ctr > 0) {                                  
-                                       feedctr.className = "odd";
+                                       feedctr.className = "feedCtrHasUnread";
                                        if (!feedr.className.match("Unread")) {
                                                var is_selected = feedr.className.match("Selected");
                
@@ -575,18 +526,21 @@ function parse_counters(reply, scheduled_call) {
                                                
                                        }
 
-                                       if (row_needs_hl) { 
+                                       if (row_needs_hl && 
+                                                       !getInitParam("theme_option").match('no_highlights')) { 
                                                new Effect.Highlight(feedr, {duration: 1, startcolor: "#fff7d5",
                                                        queue: { position:'end', scope: 'EFQ-' + id, limit: 1 } } );
+
+                                               cache_invalidate("F:" + id);
                                        }
                                } else {
-                                       feedctr.className = "invisible";
+                                       feedctr.className = "feedCtrNoUnread";
                                        feedr.className = feedr.className.replace("Unread", "");
                                }                       
                        }
                }
 
-               hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
+               hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 
                var feeds_stored = number_of_feeds;
 
@@ -599,6 +553,12 @@ function parse_counters(reply, scheduled_call) {
                                debug("Subscribed feed number changed, refreshing feedlist");
                                setTimeout('updateFeedList(false, false)', 50);
                        }
+               } else {
+/*                     var fl = $("feeds-frame").innerHTML;
+                       if (fl) {
+                               cache_invalidate("FEEDLIST");
+                               cache_inject("FEEDLIST", fl, getInitParam("num_feeds"));
+                       } */
                }
 
        } catch (e) {
@@ -620,24 +580,8 @@ function parse_counters_reply(transport, scheduled_call) {
                updateTitle("");
                return;
        } 
-       
-       var error_code = false;
-       var error_msg = false;
-
-       if (reply.firstChild) {
-               error_code = reply.firstChild.getAttribute("error-code");
-               error_msg = reply.firstChild.getAttribute("error-msg");
-       }
 
-       if (!error_code) {      
-               error_code = reply.getAttribute("error-code");
-               error_msg = reply.getAttribute("error-msg");
-       }
-       
-       if (error_code && error_code != 0) {
-               debug("refetch_callback: got error code " + error_code);
-               return fatalError(error_code, error_msg);
-       }
+       if (!transport_error_check(transport)) return;
 
        var counters = reply.getElementsByTagName("counters")[0];
        
@@ -647,35 +591,49 @@ function parse_counters_reply(transport, scheduled_call) {
 
        parse_runtime_info(runtime_info);
 
-       if (getInitParam("feeds_sort_by_unread") == 1) {
-                       resort_feedlist();              
-       }       
+       if (feedsSortByUnread()) {
+               resort_feedlist();
+       }
 
-       hideOrShowFeeds(document, getInitParam("hide_read_feeds") == 1);
+       hideOrShowFeeds(getInitParam("hide_read_feeds") == 1);
 
 }
 
-function all_counters_callback2(transport) {
+function all_counters_callback2(transport, async_call) {
        try {
+               if (async_call) async_counters_work = true;
+               
+               if (offline_mode) return;
+
                debug("<b>all_counters_callback2 IN: " + transport + "</b>");
                parse_counters_reply(transport);
                debug("<b>all_counters_callback2 OUT: " + transport + "</b>");
 
        } catch (e) {
-               exception_error("all_counters_callback2", e);
+               exception_error("all_counters_callback2", e, transport);
        }
 }
 
 function get_feed_unread(id) {
        try {
-               return parseInt(document.getElementById("FEEDU-" + id).innerHTML);      
+               return parseInt($("FEEDU-" + id).innerHTML);    
+       } catch (e) {
+               return -1;
+       }
+}
+
+function get_cat_unread(id) {
+       try {
+               var ctr = $("FCATCTR-" + id).innerHTML;
+               ctr = ctr.replace("(", "");
+               ctr = ctr.replace(")", "");
+               return parseInt(ctr);
        } catch (e) {
-               exception_error("get_feed_unread", e, true);
                return -1;
        }
 }
 
-function get_feed_entry_unread(doc, elem) {
+function get_feed_entry_unread(elem) {
 
        var id = elem.id.replace("FEEDR-", "");
 
@@ -684,38 +642,52 @@ function get_feed_entry_unread(doc, elem) {
        }
 
        try {
-               return parseInt(doc.getElementById("FEEDU-" + id).innerHTML);   
+               return parseInt($("FEEDU-" + id).innerHTML);    
        } catch (e) {
                return -1;
        }
 }
 
-function resort_category(doc, node) {
-       debug("resort_category: " + node);
+function get_feed_entry_name(elem) {
+       var id = elem.id.replace("FEEDR-", "");
+       return getFeedName(id);
+}
 
-       if (node.hasChildNodes() && node.firstChild.nextSibling != false) {  
-               for (i = 0; i < node.childNodes.length; i++) {
-                       if (node.childNodes[i].nodeName != "LI") { continue; }
 
-                       if (get_feed_entry_unread(doc, node.childNodes[i]) < 0) {
-                               continue;
-                       }
+function resort_category(node, cat_mode) {
+
+       try {
 
-                       for (j = i+1; j < node.childNodes.length; j++) {                        
-                               if (node.childNodes[j].nodeName != "LI") { continue; }  
+               debug("resort_category: " + node + " CM=" + cat_mode);
+       
+               var by_unread = feedsSortByUnread();
+       
+               var list = node.getElementsByTagName("LI");
+       
+               for (i = 0; i < list.length; i++) {
+       
+                       for (j = i+1; j < list.length; j++) {                   
+       
+                               var tmp_val = get_feed_entry_unread(list[i]);
+                               var cur_val = get_feed_entry_unread(list[j]);
+       
+                               var tmp_name = get_feed_entry_name(list[i]);
+                               var cur_name = get_feed_entry_name(list[j]);
 
-                               var tmp_val = get_feed_entry_unread(doc, node.childNodes[i]);
-                               var cur_val = get_feed_entry_unread(doc, node.childNodes[j]);
+                               var valid_pair = cat_mode || (list[i].id.match(/FEEDR-[0-9]/) &&
+                                               list[j].id.match(/FEEDR-[0-9]/));
 
-                               if (cur_val > tmp_val) {
-                                       tempnode_i = node.childNodes[i].cloneNode(true);
-                                       tempnode_j = node.childNodes[j].cloneNode(true);
-                                       node.replaceChild(tempnode_i, node.childNodes[j]);
-                                       node.replaceChild(tempnode_j, node.childNodes[i]);
+                               if (valid_pair && ((by_unread && (cur_val > tmp_val)) || (!by_unread && (cur_name < tmp_name)))) {
+                                       tempnode_i = list[i].cloneNode(true);
+                                       tempnode_j = list[j].cloneNode(true);
+                                       node.replaceChild(tempnode_i, list[j]);
+                                       node.replaceChild(tempnode_j, list[i]);
                                }
                        }
-
                }
+
+       } catch (e) {
+               exception_error("resort_category", e);
        }
 
 }
@@ -723,24 +695,18 @@ function resort_category(doc, node) {
 function resort_feedlist() {
        debug("resort_feedlist");
 
-       var fd = document;
+       if ($("FCATLIST--1")) {
 
-       if (fd.getElementById("feedCatHolder")) {
+               var lists = document.getElementsByTagName("UL");
 
-               var feeds = fd.getElementById("feedList");
-               var child = feeds.firstChild;
-
-               while (child) {
-
-                       if (child.id == "feedCatHolder") {
-                               resort_category(fd, child.firstChild);
+               for (var i = 0; i < lists.length; i++) {
+                       if (lists[i].id && lists[i].id.match("FCATLIST-")) {
+                               resort_category(lists[i], true);
                        }
-       
-                       child = child.nextSibling;
                }
 
        } else {
-               resort_category(fd, fd.getElementById("feedList"));
+               resort_category($("feedList"), false);
        }
 }
 
@@ -778,107 +744,126 @@ function resort_feedlist() {
   }
 
 
-function hideOrShowFeeds(doc, hide) {
-
-       debug("hideOrShowFeeds: " + doc + ", " + hide);
+function hideOrShowFeeds(hide) {
 
-       var fd = document;
+       try {
 
-       var list = fd.getElementById("feedList");
+       debug("hideOrShowFeeds: " + hide);
 
-       if (fd.getElementById("feedCatHolder")) {
+       if ($("FCATLIST--1")) {
 
-               var feeds = fd.getElementById("feedList");
-               var child = feeds.firstChild;
+               var lists = document.getElementsByTagName("UL");
 
-               while (child) {
+               for (var i = 0; i < lists.length; i++) {
+                       if (lists[i].id && lists[i].id.match("FCATLIST-")) {
 
-                       if (child.id == "feedCatHolder") {
-                               hideOrShowFeedsCategory(fd, child.firstChild, hide, child.previousSibling);
+                               var id = lists[i].id.replace("FCATLIST-", "");
+                               hideOrShowFeedsCategory(id, hide);
                        }
-       
-                       child = child.nextSibling;
                }
 
        } else {
-               hideOrShowFeedsCategory(fd, fd.getElementById("feedList"), hide);
+               hideOrShowFeedsCategory(null, hide);
        }
-}
-
-function hideOrShowFeedsCategory(doc, node, hide, cat_node) {
 
-//     debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
-
-       var cat_unread = 0;
-
-       if (!node) {
-               debug("hideOrShowFeeds: passed node is null, aborting");
-               return;
+       } catch (e) {
+               exception_error("hideOrShowFeeds", e);
        }
+}
 
-//     debug("cat: " + node.id);
+function hideOrShowFeedsCategory(id, hide) {
 
-       if (node.hasChildNodes() && node.firstChild.nextSibling != false) {  
-               for (i = 0; i < node.childNodes.length; i++) {
-                       if (node.childNodes[i].nodeName != "LI") { continue; }
+       try {
+       
+               var node = null;
+               var cat_node = null;
 
-                       if (node.childNodes[i].style != undefined) {
+               if (id) {
+                       node = $("FCATLIST-" + id);
+                       cat_node = $("FCAT-" + id);
+               } else {
+                       node = $("feedList"); // no categories
+               }
 
-                               var has_unread = (node.childNodes[i].className != "feed" &&
-                                       node.childNodes[i].className != "label" && 
-                                       !(!getInitParam("hide_read_shows_special") && 
-                                               node.childNodes[i].className == "virt") && 
-                                       node.childNodes[i].className != "error" && 
-                                       node.childNodes[i].className != "tag");
+       //      debug("hideOrShowFeedsCategory: " + node + " (" + hide + ")");
        
-//                             debug(node.childNodes[i].id + " --> " + has_unread);
+               var cat_unread = 0;
        
-                               if (hide && !has_unread) {
-                                       //node.childNodes[i].style.display = "none";
-                                       var id = node.childNodes[i].id;
-                                       Effect.Fade(node.childNodes[i], {duration : 0.3, 
-                                               queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
-                               }
+               if (!node) {
+                       debug("hideOrShowFeeds: passed node is null, aborting");
+                       return;
+               }
        
-                               if (!hide) {
-                                       node.childNodes[i].style.display = "list-item";
-                                       //Effect.Appear(node.childNodes[i], {duration : 0.3});
-                               }
+       //      debug("cat: " + node.id);
+       
+               if (node.hasChildNodes() && node.firstChild.nextSibling != false) {  
+                       for (i = 0; i < node.childNodes.length; i++) {
+                               if (node.childNodes[i].nodeName != "LI") { continue; }
        
-                               if (has_unread) {
-                                       node.childNodes[i].style.display = "list-item";
-                                       cat_unread++;
-                                       //Effect.Appear(node.childNodes[i], {duration : 0.3});
-                                       //Effect.Highlight(node.childNodes[i]);
+                               if (node.childNodes[i].style != undefined) {
+       
+                                       var has_unread = (node.childNodes[i].className != "feed" &&
+                                               node.childNodes[i].className != "label" && 
+                                               !(!getInitParam("hide_read_shows_special") && 
+                                                       node.childNodes[i].className == "virt") && 
+                                               node.childNodes[i].className != "error" && 
+                                               node.childNodes[i].className != "tag");
+               
+       //                              debug(node.childNodes[i].id + " --> " + has_unread);
+               
+                                       if (hide && !has_unread) {
+                                               //node.childNodes[i].style.display = "none";
+                                               var id = node.childNodes[i].id;
+                                               Effect.Fade(node.childNodes[i], {duration : 0.3, 
+                                                       queue: { position: 'end', scope: 'FFADE-' + id, limit: 1 }});
+                                       }
+               
+                                       if (!hide) {
+                                               node.childNodes[i].style.display = "list-item";
+                                               //Effect.Appear(node.childNodes[i], {duration : 0.3});
+                                       }
+               
+                                       if (has_unread) {
+                                               node.childNodes[i].style.display = "list-item";
+                                               cat_unread++;
+                                               //Effect.Appear(node.childNodes[i], {duration : 0.3});
+                                               //Effect.Highlight(node.childNodes[i]);
+                                       }
                                }
                        }
-               }
-       }       
+               }       
+       
+       //      debug("end cat: " + node.id + " unread " + cat_unread);
 
-//     debug("end cat: " + node.id + " unread " + cat_unread);
+               if (cat_node) {
 
-       if (cat_unread == 0) {
-               if (cat_node.style == undefined) {
-                       debug("ERROR: supplied cat_node " + cat_node + 
-                               " has no styles. WTF?");
-                       return;
-               }
-               if (hide) {
-                       //cat_node.style.display = "none";
-                       Effect.Fade(cat_node, {duration : 0.3, 
-                               queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
-               } else {
-                       cat_node.style.display = "list-item";
-               }
-       } else {
-               try {
-                       cat_node.style.display = "list-item";
-               } catch (e) {
-                       debug(e);
+                       if (cat_unread == 0) {
+                               if (cat_node.style == undefined) {
+                                       debug("ERROR: supplied cat_node " + cat_node + 
+                                               " has no styles. WTF?");
+                                       return;
+                               }
+                               if (hide) {
+                                       //cat_node.style.display = "none";
+                                       Effect.Fade(cat_node, {duration : 0.3, 
+                                               queue: { position: 'end', scope: 'CFADE-' + node.id, limit: 1 }});
+                               } else {
+                                       cat_node.style.display = "list-item";
+                               }
+                       } else {
+                               try {
+                                       cat_node.style.display = "list-item";
+                               } catch (e) {
+                                       debug(e);
+                               }
+                       }
                }
-       }
 
 //     debug("unread for category: " + cat_unread);
+
+       } catch (e) {
+               exception_error("hideOrShowFeedsCategory", e);
+       }
 }
 
 function selectTableRow(r, do_select) {
@@ -893,13 +878,13 @@ function selectTableRowById(elem_id, check_id, do_select) {
 
        try {
 
-               var row = document.getElementById(elem_id);
+               var row = $(elem_id);
 
                if (row) {
                        selectTableRow(row, do_select);
                }               
 
-               var check = document.getElementById(check_id);
+               var check = $(check_id);
 
                if (check) {
                        check.checked = do_select;
@@ -912,7 +897,7 @@ function selectTableRowById(elem_id, check_id, do_select) {
 function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select, 
        classcheck, reset_others) {
 
-       var content = document.getElementById(content_id);
+       var content = $(content_id);
 
        if (!content) {
                alert("[selectTableRows] Element " + content_id + " not found.");
@@ -927,7 +912,7 @@ function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
                                        selectTableRow(content.rows[i], do_select);
                                
                                        var row_id = content.rows[i].id.replace(prefix, "");
-                                       var check = document.getElementById(check_prefix + row_id);
+                                       var check = $(check_prefix + row_id);
        
                                        if (check) {
                                                check.checked = do_select;
@@ -936,7 +921,7 @@ function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
                                        selectTableRow(content.rows[i], false);
        
                                        var row_id = content.rows[i].id.replace(prefix, "");
-                                       var check = document.getElementById(check_prefix + row_id);
+                                       var check = $(check_prefix + row_id);
        
                                        if (check) {
                                                check.checked = false;
@@ -947,7 +932,7 @@ function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
                                selectTableRow(content.rows[i], false);
        
                                var row_id = content.rows[i].id.replace(prefix, "");
-                               var check = document.getElementById(check_prefix + row_id);
+                               var check = $(check_prefix + row_id);
        
                                if (check) {
                                        check.checked = false;
@@ -960,7 +945,7 @@ function selectTableRowsByIdPrefix(content_id, prefix, check_prefix, do_select,
 
 function getSelectedTableRowIds(content_id, prefix) {
 
-       var content = document.getElementById(content_id);
+       var content = $(content_id);
 
        if (!content) {
                alert("[getSelectedTableRowIds] Element " + content_id + " not found.");
@@ -983,7 +968,7 @@ function getSelectedTableRowIds(content_id, prefix) {
 }
 
 function toggleSelectRowById(sender, id) {
-       var row = document.getElementById(id);
+       var row = $(id);
 
        if (sender.checked) {
                if (!row.className.match("Selected")) {
@@ -1028,6 +1013,110 @@ function toggleSelectRow(sender) {
        }
 }
 
+function getNextUnreadCat(id) {
+       try {
+               var rows = $("feedList").getElementsByTagName("LI");
+               var feeds = new Array();
+
+               var unread_only = true;
+               var is_cat = true;
+
+               for (var i = 0; i < rows.length; i++) {
+                       if (rows[i].id.match("FCAT-")) {
+                               if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
+
+                                       var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
+
+                                       if (cat_id >= 0) {
+                                               if (!unread_only || get_cat_unread(cat_id) > 0) {
+                                                       feeds.push(cat_id);
+                                               }
+                                       }
+                               }
+                       }
+               }
+
+               var idx = feeds.indexOf(id);
+               if (idx != -1 && idx < feeds.length) {
+                       return feeds[idx+1];                                    
+               } else {
+                       return feeds.shift();
+               }
+
+       } catch (e) {
+               exception_error("getNextUnreadCat", e);
+       }
+}
+
+function getRelativeFeedId2(id, is_cat, direction, unread_only) {      
+       try {
+
+//             alert(id + " IC: " + is_cat + " D: " + direction + " U: " + unread_only);
+
+               var rows = $("feedList").getElementsByTagName("LI");
+               var feeds = new Array();
+       
+               for (var i = 0; i < rows.length; i++) {
+                       if (rows[i].id.match("FEEDR-")) {
+       
+                               if (rows[i].id == "FEEDR-" + id && !is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
+       
+                                       if (!unread_only || 
+                                                       (rows[i].className.match("Unread") || rows[i].id == "FEEDR-" + id)) {
+                                               feeds.push(rows[i].id.replace("FEEDR-", ""));
+                                       }
+                               }
+                       }
+
+                       if (rows[i].id.match("FCAT-")) {
+                               if (rows[i].id == "FCAT-" + id && is_cat || (Element.visible(rows[i]) && Element.visible(rows[i].parentNode))) {
+
+                                       var cat_id = parseInt(rows[i].id.replace("FCAT-", ""));
+
+                                       if (cat_id >= 0) {
+                                               if (!unread_only || get_cat_unread(cat_id) > 0) {
+                                                       feeds.push("CAT:"+cat_id);
+                                               }
+                                       }
+                               }
+                       }
+               }
+       
+//             alert(feeds.toString());
+
+               if (!id) {
+                       if (direction == "next") {
+                               return feeds.shift();
+                       } else {
+                               return feeds.pop();
+                       }
+               } else {
+                       if (direction == "next") {
+                               if (is_cat) id = "CAT:" + id;
+                               var idx = feeds.indexOf(id);
+                               if (idx != -1 && idx < feeds.length) {
+                                       return feeds[idx+1];                                    
+                               } else {
+                                       return getRelativeFeedId2(false, is_cat, direction, unread_only);
+                               }
+                       } else {
+                               if (is_cat) id = "CAT:" + id;
+                               var idx = feeds.indexOf(id);
+                               if (idx > 0) {
+                                       return feeds[idx-1];
+                               } else {
+                                       return getRelativeFeedId2(false, is_cat, direction, unread_only);
+                               }
+                       }
+       
+               }
+
+       } catch (e) {
+               exception_error("getRelativeFeedId2", e);
+       }
+}
+
+
 function getRelativeFeedId(list, id, direction, unread_only) { 
        var rows = list.getElementsByTagName("LI");
        var feeds = new Array();
@@ -1072,13 +1161,13 @@ function getRelativeFeedId(list, id, direction, unread_only) {
 }
 
 function showBlockElement(id, h_id) {
-       var elem = document.getElementById(id);
+       var elem = $(id);
 
        if (elem) {
                elem.style.display = "block";
 
                if (h_id) {
-                       elem = document.getElementById(h_id);
+                       elem = $(h_id);
                        if (elem) {
                                elem.style.display = "none";
                        }
@@ -1094,9 +1183,9 @@ function appearBlockElement_afh(effect) {
 
 function checkboxToggleElement(elem, id) {
        if (elem.checked) {
-               Effect.SlideDown(id, {duration : 0.5});
+               Effect.Appear(id, {duration : 0.5});
        } else {
-               Effect.SlideUp(id, {duration : 0.5});
+               Effect.Fade(id, {duration : 0.5});
        }
 }
 
@@ -1156,44 +1245,51 @@ function leading_zero(p) {
        return s;
 }
 
-function closeInfoBox(cleanup) {
+function closeErrorBox() {
 
-       if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
-               var overlay = document.getElementById("dialog_overlay");
-               if (overlay) {
-                       overlay.style.display = "none";
-               }
+       if (Element.visible("errorBoxShadow")) {
+               Element.hide("dialog_overlay");
+               Element.hide("errorBoxShadow");
+
+               enableHotkeys();
        }
 
-       var box = document.getElementById('infoBox');
-       var shadow = document.getElementById('infoBoxShadow');
+       return false;
+}
 
-       if (shadow) {
-               shadow.style.display = "none";
-       } else if (box) {
-               box.style.display = "none";
-       }
+function closeInfoBox(cleanup) {
 
-       if (cleanup) box.innerHTML = "&nbsp;";
+       try {
+               enableHotkeys();
 
-       enableHotkeys();
+               if (Element.visible("infoBoxShadow")) {
+                       Element.hide("dialog_overlay");
+                       Element.hide("infoBoxShadow");
 
+                       if (cleanup) $("infoBoxShadow").innerHTML = "&nbsp;";
+               }
+       } catch (e) {
+               exception_error("closeInfoBox", e);
+       }
+       
        return false;
 }
 
 
-function displayDlg(id, param) {
+function displayDlg(id, param, callback) {
 
        notify_progress("Loading, please wait...", true);
 
        disableHotkeys();
 
-       var query = "backend.php?op=dlg&id=" +
+       var query = "?op=dlg&id=" +
                param_escape(id) + "&param=" + param_escape(param);
 
-       new Ajax.Request(query, {
+       new Ajax.Request("backend.php", {
+               parameters: query,
                onComplete: function (transport) {
                        infobox_callback2(transport);
+                       if (callback) callback(transport);
                } });
 
        return false;
@@ -1219,35 +1315,19 @@ function infobox_callback2(transport) {
 
                debug("infobox_callback2");
 
-               if (!is_msie() && !getInitParam("infobox_disable_overlay")) {
-                       var overlay = document.getElementById("dialog_overlay");
-                       if (overlay) {
-                               overlay.style.display = "block";
-                       }
-               }
-
-               var box = document.getElementById('infoBox');
-               var shadow = document.getElementById('infoBoxShadow');
+               var box = $('infoBox');
+               
                if (box) {                      
 
-/*                             if (!is_safari()) {
-                               new Draggable(shadow);
-                       } */
+                       if (!getInitParam("infobox_disable_overlay")) {
+                               Element.show("dialog_overlay");
+                       }
 
                        box.innerHTML=transport.responseText;                   
-                       if (shadow) {
-                               shadow.style.display = "block";
-                       } else {
-                               box.style.display = "block";                            
-                       }
-               }
+                       Element.show("infoBoxShadow");
+                       //Effect.SlideDown("infoBoxShadow", {duration : 1.0});
 
-               /* FIXME this needs to be moved out somewhere */
 
-               if (document.getElementById("tags_choices")) {
-                       new Ajax.Autocompleter('tags_str', 'tags_choices',
-                               "backend.php?op=rpc&subop=completeTags",
-                               { tokens: ',', paramName: "search" });
                }
 
                disableHotkeys();
@@ -1289,20 +1369,14 @@ function createFilter() {
        }
 }
 
-function toggleSubmitNotEmpty(e, submit_id) {
-       try {
-               document.getElementById(submit_id).disabled = (e.value == "")
-       } catch (e) {
-               exception_error("toggleSubmitNotEmpty", e);
-       }
-}
-
 function isValidURL(s) {
        return s.match("http://") != null || s.match("https://") != null || s.match("feed://") != null;
 }
 
 function subscribeToFeed() {
 
+       try {
+
        var form = document.forms['feed_add_form'];
        var feed_url = form.feed_url.value;
 
@@ -1313,22 +1387,49 @@ function subscribeToFeed() {
 
        notify_progress(__("Subscribing to feed..."), true);
 
-       closeInfoBox();
-
-       var feeds_doc = document;
-
-//     feeds_doc.location.href = "backend.php?op=error&msg=Loading,%20please wait...";
-       
        var query = Form.serialize("feed_add_form");
        
        debug("subscribe q: " + query);
 
+       Form.disable("feed_add_form");
+
        new Ajax.Request("backend.php", {
                parameters: query,
                onComplete: function(transport) { 
-                       dlg_frefresh_callback(transport); 
+                       //dlg_frefresh_callback(transport); 
+
+                       notify('');
+
+                       var result = transport.responseXML.getElementsByTagName('result')[0];
+                       var rc = parseInt(result.getAttribute('code'));
+
+                       Form.enable("feed_add_form");
+
+                       switch (rc) {
+                       case 1:
+                               closeInfoBox();
+                               notify_info(__("Subscribed to %s").replace("%s", feed_url));
+
+                               if (inPreferences()) {
+                                       updateFeedList();
+                               } else {
+                                       setTimeout('updateFeedList(false, false)', 50);
+                               }
+                               break;
+                       case 2:
+                               alert(__("Can't subscribe to the specified URL."));
+                               break;
+                       case 0:
+                               alert(__("You are already subscribed to this feed."));
+                               break;
+                       }
+
                } });
 
+       } catch (e) {
+               exception_error("subscribeToFeed", e);
+       }
+
        return false;
 }
 
@@ -1353,22 +1454,6 @@ function filterCR(e, f)
        }
 }
 
-function getMainContext() {
-       return this.window;
-}
-
-function getFeedsContext() {
-       return this.window;
-}
-
-function getContentContext() {
-       return this.window;
-}
-
-function getHeadlinesContext() {
-       return this.window;
-}
-
 var debug_last_class = "even";
 
 function debug(msg) {
@@ -1379,8 +1464,8 @@ function debug(msg) {
                debug_last_class = "even";
        }
 
-       var c = document.getElementById('debug_output');
-       if (c && c.style.display == "block") {
+       var c = $('debug_output');
+       if (c && Element.visible(c)) {
                while (c.lastChild != 'undefined' && c.childNodes.length > 100) {
                        c.removeChild(c.lastChild);
                }
@@ -1397,27 +1482,43 @@ function getInitParam(key) {
        return init_params[key];
 }
 
-function storeInitParam(key, value) {
-       debug("<b>storeInitParam is OBSOLETE: " + key + " => " + value + "</b>");
+function setInitParam(key, value) {
        init_params[key] = value;
 }
 
-function fatalError(code, message) {
+function fatalError(code, msg, ext_info) {
        try {   
 
+               if (!ext_info) ext_info = "N/A";
+
                if (code == 6) {
                        window.location.href = "tt-rss.php";                    
                } else if (code == 5) {
                        window.location.href = "update.php";
                } else {
-                       var fe = document.getElementById("fatal_error");
-                       var fc = document.getElementById("fatal_error_msg");
        
-                       if (message == "") message = "Unknown error";
+                       if (msg == "") msg = "Unknown error";
 
-                       fc.innerHTML = "<img src='images/sign_excl.gif'> " + message + " (Code " + code + ")";
+                       var ebc = $("xebContent");
        
-                       fe.style.display = "block";
+                       if (ebc) {
+       
+                               Element.show("dialog_overlay");
+                               Element.show("errorBoxShadow");
+                               Element.hide("xebBtn");
+
+                               if (ext_info) {
+                                       if (ext_info.responseText) {
+                                               ext_info = ext_info.responseText;
+                                       }
+                               }
+       
+                               ebc.innerHTML = 
+                                       "<div><b>Error message:</b></div>" +
+                                       "<pre>" + msg + "</pre>" +
+                                       "<div><b>Additional information:</b></div>" +
+                                       "<textarea readonly=\"1\">" + ext_info + "</textarea>";
+                       }
                }
 
        } catch (e) {
@@ -1426,14 +1527,12 @@ function fatalError(code, message) {
 }
 
 function getFeedName(id, is_cat) {     
-       var d = getFeedsContext().document;
-
        var e;
 
        if (is_cat) {
-               e = d.getElementById("FCATN-" + id);
+               e = $("FCATN-" + id);
        } else {
-               e = d.getElementById("FEEDN-" + id);
+               e = $("FEEDN-" + id);
        }
        if (e) {
                return e.innerHTML.stripTags();
@@ -1442,8 +1541,37 @@ function getFeedName(id, is_cat) {
        }
 }
 
-function viewContentUrl(url) {
-       getContentContext().location = url;
+function filterDlgCheckType(sender) {
+
+       try {
+
+               var ftype = sender[sender.selectedIndex].value;
+
+               var form = document.forms["filter_add_form"];
+       
+               if (!form) {
+                       form = document.forms["filter_edit_form"];
+               }
+
+               if (!form) {
+                       debug("filterDlgCheckType: can't find form!");
+                       return;
+               }
+
+               // if selected filter type is 5 (Date) enable the modifier dropbox
+               if (ftype == 5) {
+                       Element.show("filter_dlg_date_mod_box");
+                       Element.show("filter_dlg_date_chk_box");
+               } else {
+                       Element.hide("filter_dlg_date_mod_box");
+                       Element.hide("filter_dlg_date_chk_box");
+
+               }
+
+       } catch (e) {
+               exception_error("filterDlgCheckType", e);
+       }
+
 }
 
 function filterDlgCheckAction(sender) {
@@ -1463,18 +1591,25 @@ function filterDlgCheckAction(sender) {
                        return;
                }
 
-               var action_param = form.action_param;
+               var action_param = $("filter_dlg_param_box");
 
                if (!action_param) {
-                       debug("filterDlgCheckAction: can't find action param!");
+                       debug("filterDlgCheckAction: can't find action param box!");
                        return;
                }
 
                // if selected action supports parameters, enable params field
-               if (action == 4 || action == 6) {
-                       action_param.disabled = false;
+               if (action == 4 || action == 6 || action == 7) {
+                       Element.show(action_param);
+                       if (action != 7) {
+                               Element.show(form.action_param);
+                               Element.hide(form.action_param_label);
+                       } else {
+                               Element.show(form.action_param_label);
+                               Element.hide(form.action_param);
+                       }
                } else {
-                       action_param.disabled = true;
+                       Element.hide(action_param);
                }
 
        } catch (e) {
@@ -1483,6 +1618,56 @@ function filterDlgCheckAction(sender) {
 
 }
 
+function filterDlgCheckDate() {
+       try {
+               var form = document.forms["filter_add_form"];
+       
+               if (!form) {
+                       form = document.forms["filter_edit_form"];
+               }
+
+               if (!form) {
+                       debug("filterDlgCheckAction: can't find form!");
+                       return;
+               }
+
+               var reg_exp = form.reg_exp.value;
+
+               var query = "?op=rpc&subop=checkDate&date=" + reg_exp;
+
+               new Ajax.Request("backend.php", {
+                       parameters: query,
+                       onComplete: function(transport) { 
+
+                               var form = document.forms["filter_add_form"];
+       
+                               if (!form) {
+                                       form = document.forms["filter_edit_form"];
+                               }
+
+                               if (transport.responseXML) {
+                                       var result = transport.responseXML.getElementsByTagName("result")[0];
+
+                                       if (result && result.firstChild) {
+                                               if (result.firstChild.nodeValue == "1") {
+
+                                                       new Effect.Highlight(form.reg_exp, {startcolor : '#00ff00'});
+
+                                                       return;
+                                               }
+                                       }
+                               }
+
+                               new Effect.Highlight(form.reg_exp, {startcolor : '#ff0000'});
+
+                       } });
+
+
+       } catch (e) {
+               exception_error("filterDlgCheckDate", e);
+       }
+}
+
 function explainError(code) {
        return displayDlg("explainError", code);
 }
@@ -1495,7 +1680,7 @@ function getRelativePostIds(id, limit) {
        debug("getRelativePostIds: " + id + " limit=" + limit);
 
        var ids = new Array();
-       var container = document.getElementById("headlinesList");
+       var container = $("headlinesList");
 
        if (container) {
                var rows = container.rows;
@@ -1504,14 +1689,6 @@ function getRelativePostIds(id, limit) {
                        var r_id = rows[i].id.replace("RROW-", "");
 
                        if (r_id == id) {
-/*                             if (i > 0) ids.push(rows[i-1].id.replace("RROW-", ""));
-                               if (i > 1) ids.push(rows[i-2].id.replace("RROW-", ""));
-                               if (i > 2) ids.push(rows[i-3].id.replace("RROW-", ""));
-
-                               if (i < rows.length-1) ids.push(rows[i+1].id.replace("RROW-", ""));
-                               if (i < rows.length-2) ids.push(rows[i+2].id.replace("RROW-", ""));
-                               if (i < rows.length-3) ids.push(rows[i+3].id.replace("RROW-", "")); */
-
                                for (var k = 1; k <= limit; k++) {
                                        var nid = false;
 
@@ -1534,7 +1711,7 @@ function openArticleInNewWindow(id) {
        try {
                debug("openArticleInNewWindow: " + id);
 
-               var query = "backend.php?op=rpc&subop=getArticleLink&id=" + id;
+               var query = "?op=rpc&subop=getArticleLink&id=" + id;
                var wname = "ttrss_article_" + id;
 
                debug(query + " " + wname);
@@ -1543,11 +1720,35 @@ function openArticleInNewWindow(id) {
 
                if (!w) notify_error("Failed to open window for the article");
 
-               new Ajax.Request(query, {
+               new Ajax.Request("backend.php", {
+                       parameters: query,
                        onComplete: function(transport) { 
-                               open_article_callback(transport); 
-                       } });
 
+                                       var link = transport.responseXML.getElementsByTagName("link")[0];
+                                       var id = transport.responseXML.getElementsByTagName("id")[0];
+               
+                                       debug("open_article received link: " + link);
+               
+                                       if (link && id) {
+               
+                                               var wname = "ttrss_article_" + id.firstChild.nodeValue;
+               
+                                               debug("link url: " + link.firstChild.nodeValue + ", wname " + wname);
+               
+                                               var w = window.open(link.firstChild.nodeValue, wname);
+               
+                                               if (!w) { notify_error("Failed to load article in new window"); }
+               
+                                               if (id) {
+                                                       id = id.firstChild.nodeValue;
+                                                       if (!$("headlinesList")) {
+                                                               window.setTimeout("toggleUnread(" + id + ", 0)", 100);
+                                                       }
+                                               }
+                                       } else {
+                                               notify_error("Can't open article: received invalid article link");
+                                       }
+                               } });
 
        } catch (e) {
                exception_error("openArticleInNewWindow", e);
@@ -1584,50 +1785,8 @@ Position.Center = function(element, parent) {
 }
 
 
-function labeltest_callback(transport) {
-       try {
-               var container = document.getElementById('label_test_result');
-       
-               container.innerHTML = transport.responseText;
-               if (!Element.visible(container)) {
-                       Effect.SlideDown(container, { duration : 0.5 });
-               }
-
-               notify("");
-       } catch (e) {
-               exception_error("labeltest_callback", e);
-       }
-}
-
-function labelTest() {
-
-       try {
-               var container = document.getElementById('label_test_result');
-       
-               var form = document.forms['label_edit_form'];
-       
-               var sql_exp = form.sql_exp.value;
-               var description = form.description.value;
-       
-               notify_progress("Loading, please wait...");
-       
-               var query = "backend.php?op=pref-labels&subop=test&expr=" +
-                       param_escape(sql_exp) + "&descr=" + param_escape(description);
-       
-               new Ajax.Request(query, {
-                       onComplete: function (transport) {
-                               labeltest_callback(transport);
-                       } });
-       
-               return false;
-
-       } catch (e) {
-               exception_error("labelTest", e);
-       }
-}
-
 function isCdmMode() {
-       return !document.getElementById("headlinesList");
+       return !$("headlinesList");
 }
 
 function getSelectedArticleIds2() {
@@ -1643,7 +1802,7 @@ function getSelectedArticleIds2() {
        var ids = new Array();
 
        for (var i = 0; i < rows.length; i++) {
-               var chk = document.getElementById("RCHK-" + rows[i]);
+               var chk = $("RCHK-" + rows[i]);
                if (chk && chk.checked) {
                        ids.push(rows[i]);
                }
@@ -1659,12 +1818,11 @@ function displayHelpInfobox(topic_id) {
        var w = window.open(url, "ttrss_help", 
                "status=0,toolbar=0,location=0,width=450,height=500,scrollbars=1,menubar=0");
 
-       return false;
 }
 
 function focus_element(id) {
        try {
-               var e = document.getElementById(id);
+               var e = $(id);
                if (e) e.focus();
        } catch (e) {
                exception_error("focus_element", e);
@@ -1678,13 +1836,15 @@ function loading_set_progress(p) {
 
                debug("<b>loading_set_progress : " + p + " (" + last_progress_point + ")</b>");
 
-               var o = document.getElementById("l_progress_i");
+               var o = $("l_progress_i");
+
+//             o.style.width = (p * 2) + "px";
 
                new Effect.Scale(o, p, { 
                        scaleY : false,
                        scaleFrom : last_progress_point,
                        scaleMode: { originalWidth : 200 },
-                       queue: { position: 'end', scope: 'LSP-Q', limit: 1 } });
+                       queue: { position: 'end', scope: 'LSP-Q', limit: 3 } }); 
 
                last_progress_point = p;
 
@@ -1692,3 +1852,475 @@ function loading_set_progress(p) {
                exception_error("loading_set_progress", e);
        }
 }
+
+function remove_splash() {
+       if (Element.visible("overlay")) {
+               debug("about to remove splash, OMG!");
+               Element.hide("overlay");
+               debug("removed splash!");
+       }
+}
+
+function addLabelExample() {
+       try {
+               var form = document.forms["label_edit_form"];
+
+               var text = form.sql_exp;
+               var op = form.label_fields[form.label_fields.selectedIndex];
+               var p = form.label_fields_param;
+
+               if (op) {
+                       op = op.value;
+
+                       var tmp = "";
+
+                       if (text.value != "") {                 
+                               if (text.value.substring(text.value.length-3, 3).toUpperCase() != "AND") {
+                                       tmp = " AND ";
+                               } else {
+                                       tmp = " ";
+                               }
+                       }
+
+                       if (op == "unread") {
+                               tmp = tmp + "unread = true";
+                       }
+
+                       if (op == "updated") {
+                               tmp = tmp + "last_read is null and unread = false";
+                       }
+
+                       if (op == "kw_title") {
+                               if (p.value == "") {
+                                       alert("This action requires a parameter.");
+                                       return false;
+                               }
+                               tmp = tmp + "ttrss_entries.title like '%"+p.value+"%'";
+                       }
+
+                       if (op == "kw_content") {
+                               if (p.value == "") {
+                                       alert("This action requires a parameter.");
+                                       return false;
+                               }
+
+                               tmp = tmp + "ttrss_entries.content like '%"+p.value+"%'";
+                       }
+
+                       if (op == "scoreE") {
+                               if (isNaN(parseInt(p.value))) {
+                                       alert("This action expects numeric parameter.");
+                                       return false;
+                               }
+                               tmp = tmp + "score = " + p.value;
+                       }
+
+                       if (op == "scoreG") {
+                               if (isNaN(parseInt(p.value))) {
+                                       alert("This action expects numeric parameter.");
+                                       return false;
+                               }
+                               tmp = tmp + "score > " + p.value;
+                       }
+
+                       if (op == "scoreL") {
+                               if (isNaN(parseInt(p.value))) {
+                                       alert("This action expects numeric parameter.");
+                                       return false;
+                               }
+                               tmp = tmp + "score < " + p.value;
+                       }
+
+                       if (op == "newerD") {
+                               if (isNaN(parseInt(p.value))) {
+                                       alert("This action expects numeric parameter.");
+                                       return false;
+                               }
+                               tmp = tmp + "updated > NOW() - INTERVAL '"+parseInt(p.value)+" days'";
+                       }
+
+                       if (op == "newerH") {
+                               if (isNaN(parseInt(p.value))) {
+                                       alert("This action expects numeric parameter.");
+                                       return false;
+                               }
+
+                               tmp = tmp + "updated > NOW() - INTERVAL '"+parseInt(p.value)+" hours'";
+                       }
+
+                       text.value = text.value + tmp;
+
+                       p.value = "";
+
+               }
+               
+       } catch (e) {
+               exception_error("addLabelExample", e);
+       }
+
+       return false;
+}
+
+function labelFieldsCheck(elem) {
+       try {
+               var op = elem[elem.selectedIndex].value;
+
+               var p = document.forms["label_edit_form"].label_fields_param;
+
+               if (op == "kw_title" || op == "kw_content" || op == "scoreL" || 
+                               op == "scoreG" ||       op == "scoreE" || op == "newerD" ||
+                               op == "newerH" ) {
+                       Element.show(p);
+               } else {
+                       Element.hide(p);
+               }
+
+       } catch (e) {
+               exception_error("labelFieldsCheck", e);
+
+       }
+}
+
+function getSelectedFeedsFromBrowser() {
+
+       var list = $("browseFeedList");
+       if (!list) list = $("browseBigFeedList");
+
+       var selected = new Array();
+       
+       for (i = 0; i < list.childNodes.length; i++) {
+               var child = list.childNodes[i];
+               if (child.id && child.id.match("FBROW-")) {
+                       var id = child.id.replace("FBROW-", "");
+                       
+                       var cb = $("FBCHK-" + id);
+
+                       if (cb.checked) {
+                               selected.push(id);
+                       }
+               }
+       }
+
+       return selected;
+}
+
+function updateFeedBrowser() {
+       try {
+
+               var query = Form.serialize("feed_browser");
+
+               Element.show('feed_browser_spinner');
+
+               new Ajax.Request("backend.php", {
+                       parameters: query,
+                       onComplete: function(transport) { 
+                               notify('');
+
+                               Element.hide('feed_browser_spinner');
+
+                               var c = $("browseFeedList");
+                               var r = transport.responseXML.getElementsByTagName("content")[0];
+                               var nr = transport.responseXML.getElementsByTagName("num-results")[0];
+                               var mode = transport.responseXML.getElementsByTagName("mode")[0];
+
+                               if (c && r) {
+                                       c.innerHTML = r.firstChild.nodeValue;
+                               }
+
+                               if (parseInt(mode.getAttribute("value")) == 2) {
+                                       Element.show('feed_archive_remove');
+                               } else {
+                                       Element.hide('feed_archive_remove');
+                               }
+       
+                       } });
+
+       } catch (e) {
+               exception_error("updateFeedBrowser", e);
+       }
+
+}
+
+function browseFeeds(limit) {
+
+       try {
+
+/*             var query = "?op=ialog&subop=browse";
+
+               notify_progress("Loading, please wait...", true);
+
+               new Ajax.Request("backend.php", {
+                       parameters: query,
+                       onComplete: function(transport) { 
+                               infobox_callback2(transport);
+                       } }); */
+
+               displayDlg('feedBrowser');
+
+               return false;
+       } catch (e) {
+               exception_error("browseFeeds", e);
+       }
+}
+
+function transport_error_check(transport) {
+       try {
+               if (transport.responseXML) {
+                       var error = transport.responseXML.getElementsByTagName("error")[0];
+
+                       if (error) {
+                               var code = error.getAttribute("error-code");
+                               var msg = error.getAttribute("error-msg");
+                               if (code != 0) {
+                                       fatalError(code, msg);
+                                       return false;
+                               }
+                       }
+               }
+       } catch (e) {
+               exception_error("check_for_error_xml", e);
+       }
+       return true;
+}
+
+function strip_tags(s) {
+       return s.replace(/<\/?[^>]+(>|$)/g, "");
+}
+
+function truncate_string(s, length) {
+       if (!length) length = 30;
+       var tmp = s.substring(0, length);
+       if (s.length > length) tmp += "&hellip;";
+       return tmp;
+}
+
+/*
+function switchToFlash(e) {
+       try {
+               var targ = e;
+               if (!e) var e = window.event;
+               if (e.target) targ = e.target;
+               else if (e.srcElement) targ = e.srcElement;
+               if (targ.nodeType == 3) // defeat Safari bug
+                       targ = targ.parentNode;
+               
+               //targ is the link that was clicked
+               var audioTag=targ;
+               do {
+                       audioTag=audioTag.previousSibling;
+               } while(audioTag && audioTag.nodeType != 1)
+               
+               var flashPlayer = audioTag.getElementsByTagName('span')[0];
+               targ.parentNode.insertBefore(flashPlayer,targ);
+               targ.parentNode.removeChild(targ);
+               audioTag.parentNode.removeChild(audioTag);
+
+               return false;
+       } catch (e) {
+               exception_error("switchToFlash", e);
+       }
+}
+
+function html5AudioOrFlash(type) {
+       var audioTag = document.createElement('audio');
+       if(! audioTag.canPlayType || audioTag.canPlayType(type) == "no" ||
+                       audioTag.canPlayType(type) == ""){
+               if($('switchToFlashLink')){
+                       switchToFlash($('switchToFlashLink'));
+               }
+       }
+} */
+
+function hotkey_prefix_timeout() {
+       try {
+
+               var date = new Date();
+               var ts = Math.round(date.getTime() / 1000);
+
+               if (hotkey_prefix_pressed && ts - hotkey_prefix_pressed >= 5) {
+                       debug("hotkey_prefix seems to be stuck, aborting");
+                       hotkey_prefix_pressed = false;
+                       hotkey_prefix = false;
+                       Element.hide('cmdline');
+               }
+
+               setTimeout("hotkey_prefix_timeout()", 1000);
+
+       } catch  (e) {
+               exception_error("hotkey_prefix_timeout", e);
+       }
+}
+
+function hideAuxDlg() {
+       try {
+               Element.hide('auxDlg');
+       } catch (e) {
+               exception_error("hideAuxDlg", e);
+       }
+}
+
+function displayNewContentPrompt(id) {
+       try {
+
+               var msg = "<a href='#' onclick='viewfeed("+id+")'>" +
+                       __("New articles available in this feed (click to show)") + "</a>";
+
+               msg = msg.replace("%s", getFeedName(id));
+
+               $('auxDlg').innerHTML = msg;
+
+               Element.show('auxDlg');
+
+       } catch (e) {
+               exception_error("displayNewContentPrompt", e);
+       }
+}
+
+function feedBrowserSubscribe() {
+       try {
+
+               var selected = getSelectedFeedsFromBrowser();
+
+               var mode = document.forms['feed_browser'].mode;
+
+               mode = mode[mode.selectedIndex].value;
+
+               if (selected.length > 0) {
+                       closeInfoBox();
+
+                       notify_progress("Loading, please wait...", true);
+
+                       var query = "?op=rpc&subop=massSubscribe&ids="+
+                               param_escape(selected.toString()) + "&mode=" + param_escape(mode);
+
+                       new Ajax.Request("backend.php", {
+                               parameters: query,
+                               onComplete: function(transport) { 
+
+                                       var nf = transport.responseXML.getElementsByTagName('num-feeds')[0];
+                                       var nf_value = nf.getAttribute("value");
+
+                                       notify_info(__("Subscribed to %d feed(s).").replace("%d", nf_value));
+
+                                       if (inPreferences()) {
+                                               updateFeedList();
+                                       } else {
+                                               setTimeout('updateFeedList(false, false)', 50);
+                                       }
+                               } });
+
+               } else {
+                       alert(__("No feeds are selected."));
+               }
+
+       } catch (e) {
+               exception_error("feedBrowserSubscribe", e);
+       }
+}
+
+function feedArchiveRemove() {
+       try {
+
+               var selected = getSelectedFeedsFromBrowser();
+
+               if (selected.length > 0) {
+
+                       var pr = __("Remove selected feeds from the archive? Feeds with stored articles will not be removed.");
+
+                       if (confirm(pr)) {
+                               Element.show('feed_browser_spinner');
+
+                               var query = "?op=rpc&subop=remarchived&ids=" + 
+                                       param_escape(selected.toString());;
+
+                               new Ajax.Request("backend.php", {
+                                       parameters: query,
+                                       onComplete: function(transport) { 
+                                               updateFeedBrowser();
+                                       } }); 
+                       }
+
+               } else {
+                       alert(__("No feeds are selected."));
+               }
+
+       } catch (e) {
+               exception_error("feedArchiveRemove", e);
+       }
+}
+
+function uploadIconHandler(rc) {
+       try {
+               switch (rc) {
+                       case 0:
+                               notify_info("Upload complete.");
+                               if (inPreferences()) {
+                                       updateFeedList();
+                               } else {
+                                       setTimeout('updateFeedList(false, false)', 50);
+                               }
+                               break;
+                       case 1:
+                               notify_error("Upload failed: icon is too big.");
+                               break;
+                       case 2:
+                               notify_error("Upload failed.");
+                               break;
+               }
+
+       } catch (e) {
+               exception_error("uploadIconHandler", e);
+       }
+}
+
+function removeFeedIcon(id) {
+
+       try {
+
+               if (confirm(__("Remove stored feed icon?"))) {
+                       var query = "backend.php?op=pref-feeds&subop=removeicon&feed_id=" + param_escape(id);
+
+                       debug(query);
+
+                       notify_progress("Removing feed icon...", true);
+
+                       new Ajax.Request("backend.php", {
+                               parameters: query,
+                               onComplete: function(transport) { 
+                                       notify_info("Feed icon removed.");
+                                       if (inPreferences()) {
+                                               updateFeedList();
+                                       } else {
+                                               setTimeout('updateFeedList(false, false)', 50);
+                                       }
+                               } }); 
+               }
+
+               return false;
+       } catch (e) {
+               exception_error("uploadFeedIcon", e);
+       }
+}
+
+function uploadFeedIcon() {
+
+       try {
+
+               var file = $("icon_file");
+
+               if (file.value.length == 0) {
+                       alert(__("Please select an image file to upload."));
+               } else {
+                       if (confirm(__("Upload new icon for this feed?"))) {
+                               notify_progress("Uploading, please wait...", true);
+                               return true;
+                       }
+               }
+
+               return false;
+
+       } catch (e) {
+               exception_error("uploadFeedIcon", e);
+       }
+}
+