X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=prefs.js;h=fc7d1db3673756c5dea12c30a8cef94e867a44ea;hb=a8caa4c7d30925f270a6ed6e279e52da96fad4b4;hp=44b79fc737ee6df4d5c1b4765a0d52d57ce33071;hpb=d395a94275b55a782dbeaca4e3318365b54b5f96;p=tt-rss.git

diff --git a/prefs.js b/prefs.js
index 44b79fc7..fc7d1db3 100644
--- a/prefs.js
+++ b/prefs.js
@@ -1,508 +1,457 @@
-var xmlhttp = false;
-
 var active_feed_cat = false;
-var active_label = false;
 var active_tab = false;
-var feed_to_expand = false;
-
-var xmlhttp = Ajax.getTransport();
 
 var init_params = new Array();
 
 var caller_subop = false;
-
 var sanity_check_done = false;
+var hotkey_prefix = false;
 
-function replace_pubkey_callback() {
-	if (xmlhttp.readyState == 4) {
-		try {	
-			var link = document.getElementById("pubGenAddress");
+var color_picker_active = false;
+var selection_disabled = false;
+var mouse_is_down = false;
 
-			if (xmlhttp.responseXML) {
+function replace_pubkey_callback(transport) {
+	try {	
+		var link = $("pubGenAddress");
 
-				var new_link = xmlhttp.responseXML.getElementsByTagName("link")[0];
+		if (transport.responseXML) {
 
-				if (new_link) {
-					link.href = new_link.firstChild.nodeValue;
-					link.innerHTML = new_link.firstChild.nodeValue;
+			var new_link = transport.responseXML.getElementsByTagName("link")[0];
 
-					new Effect.Highlight(link);
+			if (new_link) {
+				link.href = new_link.firstChild.nodeValue;
+				//link.innerHTML = new_link.firstChild.nodeValue;
 
-					notify_info("Address changed.");
-				} else {
-					notify_error("Could not change address.");
-				}
+				new Effect.Highlight(link);
 
+				notify_info("Published feed URL changed.");
 			} else {
-				notify_error("Could not change address.");
+				notify_error("Could not change feed URL.");
 			}
-		} catch (e) {
-			exception_error("replace_pubkey_callback", e);
+
+		} else {
+			notify_error("Could not change feed URL.");
 		}
+	} catch (e) {
+		exception_error("replace_pubkey_callback", e);
 	}
 }
 
-function expand_feed_callback() {
-	if (xmlhttp.readyState == 4) {
-		try {	
-			var container = document.getElementById("BRDET-" + feed_to_expand);	
-			container.innerHTML=xmlhttp.responseText;
-//			container.style.display = "block";
-//			p_notify("");
-			Effect.Appear(container, {duration : 0.5});
-		} catch (e) {
-			exception_error("expand_feed_callback", e);
+function feedlist_callback2(transport) {
+
+	try {	
+
+		var container = $('prefContent');	
+		container.innerHTML=transport.responseText;
+		selectTab("feedConfig", true);
+
+		if (caller_subop) {
+			var tuple = caller_subop.split(":");
+			if (tuple[0] == 'editFeed') {
+				window.setTimeout('editFeed('+tuple[1]+')', 100);
+			}				
+
+			caller_subop = false;
+		}
+		if (typeof correctPNG != 'undefined') {
+			correctPNG();
 		}
+		notify("");
+		remove_splash();
+
+	} catch (e) {
+		exception_error("feedlist_callback2", e);
 	}
 }
 
-function feedlist_callback() {
-	if (xmlhttp.readyState == 4) {
-		try {	
-			var container = document.getElementById('prefContent');	
-			container.innerHTML=xmlhttp.responseText;
-			selectTab("feedConfig", true);
+/* stub for subscription dialog */
 
-			if (caller_subop) {
-				var tuple = caller_subop.split(":");
-				if (tuple[0] == 'editFeed') {
-					window.setTimeout('editFeed('+tuple[1]+')', 100);
-				}				
+function dlg_frefresh_callback(transport) {
+	return feedlist_callback2(transport);
+}
 
-				caller_subop = false;
-			}
-			if (typeof correctPNG != 'undefined') {
-				correctPNG();
-			}
-			notify("");
-		} catch (e) {
-			exception_error("feedlist_callback", e);
-		}
+function filterlist_callback2(transport) {
+	var container = $('prefContent');
+	container.innerHTML=transport.responseText;
+	if (typeof correctPNG != 'undefined') {
+		correctPNG();
 	}
+	notify("");
+	remove_splash();
 }
 
-/* stub for subscription dialog */
+function init_label_inline_editor() {
+	try {
+		if ($("prefLabelList")) {
+			var elems = $("prefLabelList").getElementsByTagName("SPAN");
 
-function dlg_frefresh_callback() {
-	if (xmlhttp.readyState == 4) {		
-	//	setTimeout("updateFeedList()", 500);
+			for (var i = 0; i < elems.length; i++) {
+				if (elems[i].id && elems[i].id.match("LILT-")) {
 
-		try {
-			var container = document.getElementById('prefContent');	
-			container.innerHTML=xmlhttp.responseText;
-			selectTab("feedConfig", true);
+					var id = elems[i].id.replace("LILT-", "");
 
-			if (caller_subop) {
-				var tuple = caller_subop.split(":");
-				if (tuple[0] == 'editFeed') {
-					window.setTimeout('editFeed('+tuple[1]+')', 100);
-				}				
+					new Ajax.InPlaceEditor(elems[i],
+						'backend.php?op=pref-labels&subop=save&id=' + id,
+						{cols: 20, rows: 1});
 
-				caller_subop = false;
-			}
-			if (typeof correctPNG != 'undefined') {
-				correctPNG();
+				}
 			}
-			notify("");
-		} catch (e) {
-			exception_error("feedlist_callback", e);
 		}
-	}
-}
 
-function filterlist_callback() {
-	var container = document.getElementById('prefContent');
-	if (xmlhttp.readyState == 4) {
-		container.innerHTML=xmlhttp.responseText;
-		if (typeof correctPNG != 'undefined') {
-			correctPNG();
-		}
-		notify("");
+	} catch (e) {
+		exception_error("init_label_inline_editor", e);
 	}
 }
 
-function labellist_callback() {
-	var container = document.getElementById('prefContent');
-	if (xmlhttp.readyState == 4) {
-		closeInfoBox();
-		container.innerHTML=xmlhttp.responseText;
-		if (active_label) {
-			var row = document.getElementById("LILRR-" + active_label);
-			if (row) {
-				if (!row.className.match("Selected")) {
-					row.className = row.className + "Selected";
-				}		
-			}
-			var checkbox = document.getElementById("LICHK-" + active_label);
-			
-			if (checkbox) {
-				checkbox.checked = true;
+function labellist_callback2(transport) {
+
+	try {
+
+		var container = $('prefContent');
+			closeInfoBox();
+			container.innerHTML=transport.responseText;
+
+			init_label_inline_editor();
+	
+			if (typeof correctPNG != 'undefined') {
+				correctPNG();
 			}
-		}
-		if (typeof correctPNG != 'undefined') {
-			correctPNG();
-		}
-		notify("");
-	}
-}
+			notify("");
+			remove_splash();
 
-function feed_browser_callback() {
-	var container = document.getElementById('prefContent');
-	if (xmlhttp.readyState == 4) {
-		container.innerHTML=xmlhttp.responseText;
-		notify("");
+	} catch (e) {
+		exception_error("labellist_callback2", e);
 	}
 }
 
-function userlist_callback() {
-	var container = document.getElementById('prefContent');
-	if (xmlhttp.readyState == 4) {
-		container.innerHTML=xmlhttp.responseText;
-		notify("");
+function userlist_callback2(transport) {
+	try {
+		var container = $('prefContent');
+		if (transport.readyState == 4) {
+			container.innerHTML=transport.responseText;
+			notify("");
+			remove_splash();
+		}
+	} catch (e) {
+		exception_error("userlist_callback2", e);
 	}
 }
 
-function prefslist_callback() {
-	var container = document.getElementById('prefContent');
-	if (xmlhttp.readyState == 4) {
-
-		container.innerHTML=xmlhttp.responseText;
-		
+function prefslist_callback2(transport) {
+	try {
+		var container = $('prefContent');
+		container.innerHTML=transport.responseText;
 		notify("");
+		remove_splash();
+	} catch (e) {
+		exception_error("prefslist_callback2", e);
 	}
 }
 
-function gethelp_callback() {
-	var container = document.getElementById('prefHelpBox');
-	if (xmlhttp.readyState == 4) {
-
-		container.innerHTML = xmlhttp.responseText;
-		container.style.display = "block";
-
-	}
-}
-
-function notify_callback() {
-	if (xmlhttp.readyState == 4) {
-		notify_info(xmlhttp.responseText);
-	} 
+function notify_callback2(transport) {
+	notify_info(transport.responseText);	 
 }
 
-function prefs_reset_callback() {
-	if (xmlhttp.readyState == 4) {
-		notify_info(xmlhttp.responseText);
+function prefs_reset_callback2(transport) {
+	try {
+		notify_info(transport.responseText);
 		selectTab();
-	} 
+	} catch (e) {
+		exception_error("prefs_reset_callback2", e);
+	}
 }
 
 
-function changepass_callback() {
+function changepass_callback2(transport) {
 	try {
-		if (xmlhttp.readyState == 4) {
 	
-			if (xmlhttp.responseText.indexOf("ERROR: ") == 0) {
-				notify_error(xmlhttp.responseText.replace("ERROR: ", ""));
+			if (transport.responseText.indexOf("ERROR: ") == 0) {
+				notify_error(transport.responseText.replace("ERROR: ", ""));
 			} else {
-				notify_info(xmlhttp.responseText);
-				var warn = document.getElementById("default_pass_warning");
+				notify_info(transport.responseText);
+				var warn = $("default_pass_warning");
 				if (warn) warn.style.display = "none";
 			}
 	
 			document.forms['change_pass_form'].reset();
 
-		} 
 	} catch (e) {
-		exception_error("changepass_callback", e);
+		exception_error("changepass_callback2", e);
 	}
 }
 
-function infobox_feed_cat_callback() {
-	if (xmlhttp.readyState == 4) {
-		try {
-
-			infobox_callback();
-
-			if (document.getElementById("prefFeedCatList")) {
-				var elems = document.getElementById("prefFeedCatList").getElementsByTagName("SPAN");
+function init_cat_inline_editor() {
+	try {
 
-				for (var i = 0; i < elems.length; i++) {
-					if (elems[i].id && elems[i].id.match("FCATT-")) {
-						var cat_id = elems[i].id.replace("FCATT-", "");
+		if ($("prefFeedCatList")) {
+			var elems = $("prefFeedCatList").getElementsByTagName("SPAN");
 
+			for (var i = 0; i < elems.length; i++) {
+				if (elems[i].id && elems[i].id.match("FCATT-")) {
+					var cat_id = elems[i].id.replace("FCATT-", "");
 						new Ajax.InPlaceEditor(elems[i],
-							'backend.php?op=pref-feeds&subop=editCats&action=save&cid=' + cat_id);
-					}
+						'backend.php?op=pref-feeds&subop=editCats&action=save&cid=' + cat_id);
 				}
 			}
-
-		} catch (e) {
-			exception_error("infobox_feed_cat_callback", e);
 		}
+
+	} catch (e) {
+		exception_error("init_cat_inline_editor", e);
 	}
 }
 
-function updateFeedList(sort_key) {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
+function infobox_feed_cat_callback2(transport) {
+	try {
+		infobox_callback2(transport);
+		init_cat_inline_editor();
+	} catch (e) {
+		exception_error("infobox_feed_cat_callback2", e);
 	}
+}
 
-//	document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
+function updateFeedList(sort_key) {
 
-//	p_notify("Loading, please wait...");
+	try {
 
-	var feed_search = document.getElementById("feed_search");
+	var feed_search = $("feed_search");
 	var search = "";
 	if (feed_search) { search = feed_search.value; }
 
-	var slat = document.getElementById("show_last_article_times");
+	var slat = $("show_last_article_times");
 
 	var slat_checked = false;
 	if (slat) {
 		slat_checked = slat.checked;
 	}
 
-	xmlhttp.open("GET", "backend.php?op=pref-feeds" +
+	var query = "backend.php?op=pref-feeds" +
 		"&sort=" + param_escape(sort_key) + 
 		"&slat=" + param_escape(slat_checked) +
-		"&search=" + param_escape(search), true);
-	xmlhttp.onreadystatechange=feedlist_callback;
-	xmlhttp.send(null);
+		"&search=" + param_escape(search);
 
+	new Ajax.Request(query, {
+		onComplete: function(transport) { 
+			feedlist_callback2(transport); 
+		} });
+	} catch (e) {
+		exception_error("updateFeedList", e);
+	}
 }
 
 function updateUsersList(sort_key) {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-//	document.getElementById("prefContent").innerHTML = "Loading feeds, please wait...";
-
-//	p_notify("Loading, please wait...");
+	try {
 
-	xmlhttp.open("GET", "backend.php?op=pref-users&sort="
-		+ param_escape(sort_key), true);
-	xmlhttp.onreadystatechange=userlist_callback;
-	xmlhttp.send(null);
+		var user_search = $("user_search");
+		var search = "";
+		if (user_search) { search = user_search.value; }
+	
+		var query = "backend.php?op=pref-users&sort="
+			+ param_escape(sort_key) +
+			"&search=" + param_escape(search);
+	
+		new Ajax.Request(query, {
+			onComplete: function(transport) { 
+				userlist_callback2(transport); 
+			} });
 
+	} catch (e) {
+		exception_error("updateUsersList", e);
+	}
 }
 
 function addLabel() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var form = document.forms['label_edit_form'];
-
-	var sql_exp = form.sql_exp.value;
-	var description = form.description.value;
+	try {
 
-	if (sql_exp == "") {
-		alert(__("Can't create label: missing SQL expression."));
-		return false;
-	}
+		var caption = prompt(__("Please enter label caption:"), "");
+	
+		if (caption == null) { 
+			return false;
+		}
+	
+		if (caption == "") {
+			alert(__("Can't create label: missing caption."));
+			return false;
+		}
+	
+		// we can be called from some other tab
+		active_tab = "labelConfig";
+	
+		query = "backend.php?op=pref-labels&subop=add&caption=" + 
+			param_escape(caption);
+	
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					infobox_submit_callback2(transport);
+				} });
 
-	if (description == "") {
-		alert(__("Can't create label: missing caption."));
-		return false;
+	} catch (e) {
+		exception_error("addLabel", e);
 	}
-
-	var query = Form.serialize("label_edit_form");
-
-	xmlhttp.open("GET", "backend.php?op=pref-labels&subop=add&" + query, true);			
-	xmlhttp.onreadystatechange=infobox_submit_callback;
-	xmlhttp.send(null);
 }
 
 function addFeed() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var link = document.getElementById("fadd_link");
-
-	if (link.value.length == 0) {
-		alert(__("Error: No feed URL given."));
-	} else if (!isValidURL(link.value)) {
-		alert(__("Error: Invalid feed URL."));
-	} else {
-		notify_progress("Adding feed...");
-
-		xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=add&from=tt-rss&feed_url=" +
-			param_escape(link.value), true);
-		xmlhttp.onreadystatechange=feedlist_callback;
-		xmlhttp.send(null);
+	try {
 
-		link.value = "";
+		var link = $("fadd_link");
+	
+		if (link.value.length == 0) {
+			alert(__("Error: No feed URL given."));
+		} else if (!isValidURL(link.value)) {
+			alert(__("Error: Invalid feed URL."));
+		} else {
+			notify_progress("Adding feed...");
+	
+			var query = "backend.php?op=pref-feeds&subop=add&from=tt-rss&feed_url=" +
+				param_escape(link.value);
+	
+			new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						feedlist_callback2(transport);
+					} });
+	
+			link.value = "";
+	
+		}
 
+	} catch (e) {
+		exception_error("addFeed", e);
 	}
 
 }
 
 function addFeedCat() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var cat = document.getElementById("fadd_cat");
+	var cat = $("fadd_cat");
 
 	if (cat.value.length == 0) {
 		alert(__("Can't add category: no name specified."));
 	} else {
 		notify_progress("Adding feed category...");
 
-		xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=add&cat=" +
-			param_escape(cat.value), true);
-		xmlhttp.onreadystatechange=infobox_callback;
-		xmlhttp.send(null);
+		var query = "backend.php?op=pref-feeds&subop=editCats&action=add&cat=" +
+			param_escape(cat.value);
+
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					infobox_feed_cat_callback2(transport);
+				} });
 
 		link.value = "";
 
 	}
-
 }
-function addUser() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+function addUser() {
 
-	var sqlexp = document.getElementById("uadd_box");
+	try {
 
-	if (sqlexp.value.length == 0) {
-		alert(__("Can't add user: no login specified."));
-	} else {
+		var login = prompt(__("Please enter login:"), "");
+	
+		if (login == null) { 
+			return false;
+		}
+	
+		if (login == "") {
+			alert(__("Can't create user: no login specified."));
+			return false;
+		}
+	
 		notify_progress("Adding user...");
+	
+		var query = "backend.php?op=pref-users&subop=add&login=" +
+			param_escape(login);
+				
+		new Ajax.Request(query, {
+			onComplete: function(transport) { 
+				userlist_callback2(transport); 
+			} });
 
-		xmlhttp.open("GET", "backend.php?op=pref-users&subop=add&login=" +
-			param_escape(sqlexp.value), true);			
-			
-		xmlhttp.onreadystatechange=userlist_callback;
-		xmlhttp.send(null);
-
-		sqlexp.value = "";
+	} catch (e) {
+		exception_error("addUser", e);
 	}
-
 }
 
-function editLabel(id) {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+function editUser(id) {
 
-	notify_progress("Loading, please wait...");
+	try {
 
-	document.getElementById("label_create_btn").disabled = true;
+		disableHotkeys();
 
-	active_label = id;
+		notify_progress("Loading, please wait...");
 
-	selectTableRowsByIdPrefix('prefLabelList', 'LILRR-', 'LICHK-', false);
-	selectTableRowById('LILRR-'+id, 'LICHK-'+id, true);
+		selectTableRowsByIdPrefix('prefUserList', 'UMRR-', 'UMCHK-', false);
+		selectTableRowById('UMRR-'+id, 'UMCHK-'+id, true);
 
-	xmlhttp.open("GET", "backend.php?op=pref-labels&subop=edit&id=" +
-		param_escape(id), true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
+		disableContainerChildren("userOpToolbar", false);
 
-}
+		var query = "backend.php?op=pref-users&subop=edit&id=" +
+			param_escape(id);
 
-function editUser(id) {
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					infobox_callback2(transport);
+				} });
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
+	} catch (e) {
+		exception_error("editUser", e);
 	}
-
-	notify_progress("Loading, please wait...");
-
-	selectTableRowsByIdPrefix('prefUserList', 'UMRR-', 'UMCHK-', false);
-	selectTableRowById('UMRR-'+id, 'UMCHK-'+id, true);
-
-	xmlhttp.open("GET", "backend.php?op=pref-users&subop=edit&id=" +
-		param_escape(id), true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
+		
 }
 
 function editFilter(id) {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	notify_progress("Loading, please wait...");
-
-	document.getElementById("create_filter_btn").disabled = true;
-
-	selectTableRowsByIdPrefix('prefFilterList', 'FILRR-', 'FICHK-', false);
-	selectTableRowById('FILRR-'+id, 'FICHK-'+id, true);
-
-	xmlhttp.open("GET", "backend.php?op=pref-filters&subop=edit&id=" + param_escape(id), true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-}
+	try {
 
-function editFeed(feed) {
+		disableHotkeys();
 
-//	notify("Editing feed...");
+		notify_progress("Loading, please wait...");
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+		disableContainerChildren("filterOpToolbar", false);
 
-	notify_progress("Loading, please wait...");
+		selectTableRowsByIdPrefix('prefFilterList', 'FILRR-', 'FICHK-', false);
+		selectTableRowById('FILRR-'+id, 'FICHK-'+id, true);
 
-	document.getElementById("subscribe_to_feed_btn").disabled = true;
+		var query = "backend.php?op=pref-filters&subop=edit&id=" + 
+			param_escape(id);
 
-	try {
-		document.getElementById("top25_feeds_btn").disabled = true;
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					infobox_callback2(transport);
+				} });
 	} catch (e) {
-		// this button is not always available, no-op if not found
+		exception_error("editFilter", e);
 	}
-
-	// clean selection from all rows & select row being edited
-	selectTableRowsByIdPrefix('prefFeedList', 'FEEDR-', 'FRCHK-', false);
-	selectTableRowById('FEEDR-'+feed, 'FRCHK-'+feed, true);
-
-	xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editfeed&id=" +
-		param_escape(feed), true);
-
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
 }
 
-function editFeedCat(cat) {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	notify_progress("Loading, please wait...");
+function editFeed(feed) {
 
-	active_feed_cat = cat;
+	try {
 
-	xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=edit&id=" +
-		param_escape(cat), true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
+		disableHotkeys();
+	
+		notify_progress("Loading, please wait...");
+	
+		// clean selection from all rows & select row being edited
+		selectTableRowsByIdPrefix('prefFeedList', 'FEEDR-', 'FRCHK-', false);
+		selectTableRowById('FEEDR-'+feed, 'FRCHK-'+feed, true);
+	
+		disableContainerChildren("feedOpToolbar", false);
+	
+		var query = "backend.php?op=pref-feeds&subop=editfeed&id=" +
+			param_escape(feed);
+	
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					infobox_callback2(transport);
+				} });
 
+	} catch (e) {
+		exception_error("editFeed", e);
+	}
 }
 
 function getSelectedLabels() {
@@ -525,36 +474,9 @@ function getSelectedFeedCats() {
 	return getSelectedTableRowIds("prefFeedCatList", "FCATR");
 }
 
-function getSelectedFeedsFromBrowser() {
-
-	var list = document.getElementById("browseFeedList");
-	if (!list) list = document.getElementById("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 = document.getElementById("FBCHK-" + id);
-
-			if (cb.checked) {
-				selected.push(id);
-			}
-		}
-	}
-
-	return selected;
-}
 
 function removeSelectedLabels() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	var sel_rows = getSelectedLabels();
 
 	if (sel_rows.length > 0) {
@@ -564,10 +486,14 @@ function removeSelectedLabels() {
 		if (ok) {
 			notify_progress("Removing selected labels...");
 	
-			xmlhttp.open("GET", "backend.php?op=pref-labels&subop=remove&ids="+
-				param_escape(sel_rows.toString()), true);
-			xmlhttp.onreadystatechange=labellist_callback;
-			xmlhttp.send(null);
+			var query = "backend.php?op=pref-labels&subop=remove&ids="+
+				param_escape(sel_rows.toString());
+
+			new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						labellist_callback2(transport);
+					} });
+
 		}
 	} else {
 		alert(__("No labels are selected."));
@@ -578,83 +504,153 @@ function removeSelectedLabels() {
 
 function removeSelectedUsers() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
+	try {
+
+		var sel_rows = getSelectedUsers();
+	
+		if (sel_rows.length > 0) {
+	
+			var ok = confirm(__("Remove selected users?"));
+	
+			if (ok) {
+				notify_progress("Removing selected users...");
+		
+				var query = "backend.php?op=pref-users&subop=remove&ids="+
+					param_escape(sel_rows.toString());
+	
+				new Ajax.Request(query, {
+					onComplete: function(transport) { 
+						userlist_callback2(transport); 
+					} });
+	
+			}
+	
+		} else {
+			alert(__("No users are selected."));
+		}
+
+	} catch (e) {
+		exception_error("removeSelectedUsers", e);
 	}
 
-	var sel_rows = getSelectedUsers();
+	return false;
+}
 
-	if (sel_rows.length > 0) {
+function removeSelectedFilters() {
 
-		var ok = confirm(__("Remove selected users?"));
+	try {
 
-		if (ok) {
-			notify_progress("Removing selected users...");
+		var sel_rows = getSelectedFilters();
+	
+		if (sel_rows.length > 0) {
+	
+			var ok = confirm(__("Remove selected filters?"));
+	
+			if (ok) {
+				notify_progress("Removing selected filters...");
+		
+				var query = "backend.php?op=pref-filters&subop=remove&ids="+
+					param_escape(sel_rows.toString());
+	
+				new Ajax.Request(query,	{
+						onComplete: function(transport) {
+								filterlist_callback2(transport);
+					} });
 	
-			xmlhttp.open("GET", "backend.php?op=pref-users&subop=remove&ids="+
-				param_escape(sel_rows.toString()), true);
-			xmlhttp.onreadystatechange=userlist_callback;
-			xmlhttp.send(null);
+			}
+		} else {
+			alert(__("No filters are selected."));
 		}
 
-	} else {
-		alert(__("No users are selected."));
+	} catch (e) {
+		exception_error("removeSelectedFilters", e);
 	}
 
 	return false;
 }
 
-function removeSelectedFilters() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+function removeSelectedFeeds() {
 
-	var sel_rows = getSelectedFilters();
+	try {
+
+		var sel_rows = getSelectedFeeds();
+	
+		if (sel_rows.length > 0) {
+	
+			var ok = confirm(__("Unsubscribe from selected feeds?"));
+	
+			if (ok) {
+	
+				notify_progress("Unsubscribing from selected feeds...");
+		
+				var query = "backend.php?op=pref-feeds&subop=remove&ids="+
+					param_escape(sel_rows.toString());
+	
+				new Ajax.Request(query,	{
+					onComplete: function(transport) {
+							feedlist_callback2(transport);
+						} });
+			}
+	
+		} else {
+			alert(__("No feeds are selected."));
+		}
+
+	} catch (e) {
+		exception_error("removeSelectedFeeds", e);
+	}
+	
+	return false;
+}
+
+function clearSelectedFeeds() {
+
+	var sel_rows = getSelectedFeeds();
+
+	if (sel_rows.length > 1) {
+		alert(__("Please select only one feed."));
+		return;
+	}
 
 	if (sel_rows.length > 0) {
 
-		var ok = confirm(__("Remove selected filters?"));
+		var ok = confirm(__("Erase all non-starred articles in selected feed?"));
 
 		if (ok) {
-			notify_progress("Removing selected filters...");
-	
-			xmlhttp.open("GET", "backend.php?op=pref-filters&subop=remove&ids="+
-				param_escape(sel_rows.toString()), true);
-			xmlhttp.onreadystatechange=filterlist_callback;
-			xmlhttp.send(null);
+			notify_progress("Clearing selected feed...");
+			clearFeedArticles(sel_rows[0]);
 		}
+
 	} else {
-		alert(__("No filters are selected."));
-	}
 
+		alert(__("No feeds are selected."));
+
+	}
+	
 	return false;
 }
 
-
-function removeSelectedFeeds() {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+function purgeSelectedFeeds() {
 
 	var sel_rows = getSelectedFeeds();
 
 	if (sel_rows.length > 0) {
 
-		var ok = confirm(__("Unsubscribe from selected feeds?"));
+		var pr = prompt(__("How many days of articles to keep (0 - use default)?"), "0");
 
-		if (ok) {
+		if (pr != undefined) {
+			notify_progress("Purging selected feed...");
 
-			notify_progress("Unsubscribing from selected feeds...");
-	
-			xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=remove&ids="+
-				param_escape(sel_rows.toString()), true);
-			xmlhttp.onreadystatechange=feedlist_callback;
-			xmlhttp.send(null);
+			var query = "backend.php?op=rpc&subop=purge&ids="+
+				param_escape(sel_rows.toString()) + "&days=" + pr;
+
+			debug(query);
+
+			new Ajax.Request(query,	{
+				onComplete: function(transport) {
+					notify('');
+				} });
 		}
 
 	} else {
@@ -668,11 +664,6 @@ function removeSelectedFeeds() {
 
 function removeSelectedFeedCats() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	var sel_rows = getSelectedFeedCats();
 
 	if (sel_rows.length > 0) {
@@ -682,10 +673,14 @@ function removeSelectedFeedCats() {
 		if (ok) {
 			notify_progress("Removing selected categories...");
 	
-			xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats&action=remove&ids="+
-				param_escape(sel_rows.toString()), true);
-			xmlhttp.onreadystatechange=infobox_callback;
-			xmlhttp.send(null);
+			var query = "backend.php?op=pref-feeds&subop=editCats&action=remove&ids="+
+				param_escape(sel_rows.toString());
+
+			new Ajax.Request(query,	{
+				onComplete: function(transport) {
+					infobox_feed_cat_callback2(transport);
+				} });
+
 		}
 
 	} else {
@@ -699,15 +694,9 @@ function removeSelectedFeedCats() {
 
 function feedEditCancel() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	document.getElementById("subscribe_to_feed_btn").disabled = false;
-
 	try {
-		document.getElementById("top25_feeds_btn").disabled = false;
+		$("subscribe_to_feed_btn").disabled = false;
+		$("top25_feeds_btn").disabled = false;
 	} catch (e) {
 		// this button is not always available, no-op if not found
 	}
@@ -719,43 +708,21 @@ function feedEditCancel() {
 	return false;
 }
 
-function feedCatEditCancel() {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	active_feed_cat = false;
-
-//	notify("Operation cancelled.");
-
-	xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats", true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
-	return false;
-}
-
 function feedEditSave() {
 
 	try {
 	
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return
-		}
-
 		// FIXME: add parameter validation
 
 		var query = Form.serialize("edit_feed_form");
 
 		notify_progress("Saving feed...");
 
-		xmlhttp.open("POST", "backend.php", true);
-		xmlhttp.onreadystatechange=feedlist_callback;
-		xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		xmlhttp.send(query);
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				feedlist_callback2(transport); 
+			} });
 
 		closeInfoBox();
 
@@ -766,61 +733,8 @@ function feedEditSave() {
 	} 
 }
 
-function feedCatEditSave() {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	notify_progress("Saving category...");
-
-	var query = Form.serialize("feed_cat_edit_form");
-
-	xmlhttp.open("GET", "backend.php?" + query, true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
-	active_feed_cat = false;
-
-	return false;
-}
-
-
-
-function displayHelpInfobox(topic_id) {
-
-	var url = "backend.php?op=help&tid=" + param_escape(topic_id);
-
-	var w = window.open(url, "ttrss_help", 
-		"status=0,toolbar=0,location=0,width=400,height=450,menubar=0");
-
-}
-
-function labelEditCancel() {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	document.getElementById("label_create_btn").disabled = false;
-
-	active_label = false;
-
-	selectPrefRows('label', false); // cleanup feed selection
-	closeInfoBox();
-
-	return false;
-}
-
 function userEditCancel() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	selectPrefRows('user', false); // cleanup feed selection
 	closeInfoBox();
 
@@ -829,136 +743,72 @@ function userEditCancel() {
 
 function filterEditCancel() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+	try {
+		$("create_filter_btn").disabled = false;
+		selectPrefRows('filter', false); // cleanup feed selection
+	} catch (e) { }
 
-	document.getElementById("create_filter_btn").disabled = false;
-	
-	selectPrefRows('filter', false); // cleanup feed selection
 	closeInfoBox();
 
 	return false;
 }
 
-function labelEditSave() {
-
-	var label = active_label;
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+function userEditSave() {
 
-/*	if (!is_opera()) {
+	try {
 
-		var sql_exp = document.forms["label_edit_form"].sql_exp.value;
-		var description = document.forms["label_edit_form"].description.value;
+		var login = document.forms["user_edit_form"].login.value;
 	
-		if (sql_exp.length == 0) {
-			alert("SQL Expression cannot be blank.");
-			return false;
+		if (login.length == 0) {
+			alert(__("Login field cannot be blank."));
+			return;
 		}
+		
+		notify_progress("Saving user...");
 	
-		if (description.length == 0) {
-			alert("Caption field cannot be blank.");
-			return false;
-		}
-	} */
-
-	closeInfoBox();
-
-	notify_progress("Saving label...");
-
-	active_label = false;
-
-	query = Form.serialize("label_edit_form");
-
-	xmlhttp.open("GET", "backend.php?" + query, true);		
-	xmlhttp.onreadystatechange=labellist_callback;
-	xmlhttp.send(null);
-
-	return false;
-}
-
-function userEditSave() {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var login = document.forms["user_edit_form"].login.value;
-
-	if (login.length == 0) {
-		alert(__("Login field cannot be blank."));
-		return;
-	}
+		closeInfoBox();
 	
-	notify_progress("Saving user...");
-
-	closeInfoBox();
-
-	var query = Form.serialize("user_edit_form");
+		var query = Form.serialize("user_edit_form");
+		
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				userlist_callback2(transport); 
+			} });
 	
-	xmlhttp.open("GET", "backend.php?" + query, true);			
-	xmlhttp.onreadystatechange=userlist_callback;
-	xmlhttp.send(null);
+	} catch (e) {
+		exception_error("userEditSave", e);
+	}
 
 	return false;
+
 }
 
 
 function filterEditSave() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+	try {
 
-/*	if (!is_opera()) {
-		var reg_exp = document.forms["filter_edit_form"].reg_exp.value;
+		notify_progress("Saving filter...");
 	
-		if (reg_exp.length == 0) {
-			alert("Filter expression field cannot be blank.");
-			return;
-		}
-	} */
-
-	notify_progress("Saving filter...");
-
-	var query = Form.serialize("filter_edit_form");
-
-	closeInfoBox();
+		var query = "backend.php?" + Form.serialize("filter_edit_form");
+	
+		closeInfoBox();
+	
+		$("create_filter_btn").disabled = false;
 
-	document.getElementById("create_filter_btn").disabled = false;
+		new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						filterlist_callback2(transport);
+			} });
 
-	xmlhttp.open("GET", "backend.php?" + query, true);
-	xmlhttp.onreadystatechange=filterlist_callback;
-	xmlhttp.send(null);
+	} catch (e) {
+		exception_error("filterEditSave", e);
+	}
 
 	return false;
 }
 
-function editSelectedLabel() {
-	var rows = getSelectedLabels();
-
-	if (rows.length == 0) {
-		alert(__("No labels are selected."));
-		return;
-	}
-
-	if (rows.length > 1) {
-		alert(__("Please select only one label."));
-		return;
-	}
-
-	notify("");
-
-	editLabel(rows[0]);
-
-}
 
 function editSelectedUser() {
 	var rows = getSelectedUsers();
@@ -979,90 +829,74 @@ function editSelectedUser() {
 }
 
 function resetSelectedUserPass() {
-	var rows = getSelectedUsers();
-
-	if (rows.length == 0) {
-		alert(__("No users are selected."));
-		return;
-	}
-
-	if (rows.length > 1) {
-		alert(__("Please select only one user."));
-		return;
-	}
 
-	var ok = confirm(__("Reset password of selected user?"));
+	try {
 
-	if (ok) {
-		notify_progress("Resetting password for selected user...");
+		var rows = getSelectedUsers();
 	
-		var id = rows[0];
+		if (rows.length == 0) {
+			alert(__("No users are selected."));
+			return;
+		}
+	
+		if (rows.length > 1) {
+			alert(__("Please select only one user."));
+			return;
+		}
+	
+		var ok = confirm(__("Reset password of selected user?"));
+	
+		if (ok) {
+			notify_progress("Resetting password for selected user...");
+		
+			var id = rows[0];
+		
+			var query = "backend.php?op=pref-users&subop=resetPass&id=" +
+				param_escape(id);
+	
+			new Ajax.Request(query, {
+				onComplete: function(transport) { 
+					userlist_callback2(transport); 
+				} });
 	
-		xmlhttp.open("GET", "backend.php?op=pref-users&subop=resetPass&id=" +
-			param_escape(id), true);
-		xmlhttp.onreadystatechange=userlist_callback;
-		xmlhttp.send(null);
+		}
+
+	} catch (e) {
+		exception_error("resetSelectedUserPass", e);
 	}
 }
 
 function selectedUserDetails() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var rows = getSelectedUsers();
+	try {
 
-	if (rows.length == 0) {
-		alert(__("No users are selected."));
-		return;
-	}
+		var rows = getSelectedUsers();
+	
+		if (rows.length == 0) {
+			alert(__("No users are selected."));
+			return;
+		}
+	
+		if (rows.length > 1) {
+			alert(__("Please select only one user."));
+			return;
+		}
+	
+		notify_progress("Loading, please wait...");
+	
+		var id = rows[0];
+	
+		var query = "backend.php?op=pref-users&subop=user-details&id=" + id;
 
-	if (rows.length > 1) {
-		alert(__("Please select only one user."));
-		return;
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					infobox_callback2(transport);
+				} });
+	} catch (e) {
+		exception_error("selectedUserDetails", e);
 	}
-
-	notify_progress("Loading, please wait...");
-
-	var id = rows[0];
-
-	xmlhttp.open("GET", "backend.php?op=user-details&id=" + id, true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
 }
 
-function selectedFeedDetails() {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var rows = getSelectedFeeds();
-
-	if (rows.length == 0) {
-		alert(__("No feeds are selected."));
-		return;
-	}
-
-	if (rows.length > 1) {
-		alert(__("Please select only one feed."));
-		return;
-	}
-
-//	var id = rows[0];
-
-	notify("");
-
-	xmlhttp.open("GET", "backend.php?op=feed-details&id=" + 
-		param_escape(rows.toString()), true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
-}
 
 function editSelectedFilter() {
 	var rows = getSelectedFilters();
@@ -1103,29 +937,39 @@ function editSelectedFeed() {
 
 }
 
-function editSelectedFeedCat() {
-	var rows = getSelectedFeedCats();
-
-	if (rows.length == 0) {
-		alert(__("No categories are selected."));
-		return;
-	}
-
-	if (rows.length > 1) {
-		alert(__("Please select only one category."));
-		return;
-	}
+function editSelectedFeeds() {
 
-	notify("");
+	try {
+		var rows = getSelectedFeeds();
+	
+		if (rows.length == 0) {
+			alert(__("No feeds are selected."));
+			return;
+		}
+	
+		notify("");
+	
+		disableHotkeys();
+	
+		notify_progress("Loading, please wait...");
+	
+		var query = "backend.php?op=pref-feeds&subop=editfeeds&ids=" +
+			param_escape(rows.toString());
 
-	editFeedCat(rows[0]);
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					infobox_callback2(transport);
+				} });
 
+	} catch (e) {
+		exception_error("editSelectedFeeds", e);
+	}
 }
 
-function localPiggieFunction(enable) {
+function piggie(enable) {
 	if (enable) {
 		debug("I LOVEDED IT!");
-		var piggie = document.getElementById("piggie");
+		var piggie = $("piggie");
 
 		Element.show(piggie);
 		Position.Center(piggie);
@@ -1136,7 +980,7 @@ function localPiggieFunction(enable) {
 
 function validateOpmlImport() {
 	
-	var opml_file = document.getElementById("opml_file");
+	var opml_file = $("opml_file");
 
 	if (opml_file.value.length == 0) {
 		alert(__("No OPML file to upload."));
@@ -1147,52 +991,57 @@ function validateOpmlImport() {
 }
 
 function updateFilterList(sort_key) {
+	try {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-//	document.getElementById("prefContent").innerHTML = "Loading filters, please wait...";
+		var filter_search = $("filter_search");
+		var search = "";
+		if (filter_search) { search = filter_search.value; }
+	
+		var query = "backend.php?op=pref-filters&sort=" + 
+			param_escape(sort_key) + 
+			"&search=" + param_escape(search);
 
-//	p_notify("Loading, please wait...");
+		new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						filterlist_callback2(transport);
+			} });
 
-	xmlhttp.open("GET", "backend.php?op=pref-filters&sort=" + 
-		param_escape(sort_key), true);
-	xmlhttp.onreadystatechange=filterlist_callback;
-	xmlhttp.send(null);
+	} catch (e) {
+		exception_error("updateFilterList", e);
+	}
 
 }
 
 function updateLabelList(sort_key) {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-//	p_notify("Loading, please wait...");
+	try {
 
-//	document.getElementById("prefContent").innerHTML = "Loading labels, please wait...";
+		var label_search = $("label_search");
+		var search = "";
+		if (label_search) { search = label_search.value; }
+	
+		var query = "backend.php?op=pref-labels&sort=" + 
+			param_escape(sort_key) +
+			"&search=" + param_escape(search);
+	
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+				labellist_callback2(transport);
+			} });
 
-	xmlhttp.open("GET", "backend.php?op=pref-labels&sort=" + 
-		param_escape(sort_key), true);
-	xmlhttp.onreadystatechange=labellist_callback;
-	xmlhttp.send(null);
+	} catch (e) {
+		exception_error("updateLabelList", e);
+	}
 }
 
 function updatePrefsList() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-//	p_notify("Loading, please wait...");
+	var query = "backend.php?op=pref-prefs";
 
-	xmlhttp.open("GET", "backend.php?op=pref-prefs", true);
-	xmlhttp.onreadystatechange=prefslist_callback;
-	xmlhttp.send(null);
+	new Ajax.Request(query, {
+		onComplete: function(transport) { 
+			prefslist_callback2(transport); 
+		} });
 
 }
 
@@ -1204,13 +1053,8 @@ function selectTab(id, noupdate, subop) {
 
 	try {
 
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return
-		}
-
 		try {
-			var c = document.getElementById('prefContent');	
+			var c = $('prefContent');	
 			c.scrollTop = 0;
 		} catch (e) { };
 
@@ -1225,8 +1069,10 @@ function selectTab(id, noupdate, subop) {
 	
 			// clean up all current selections, just in case
 			active_feed_cat = false;
-			active_label = false;
-	
+
+//			Effect.Fade("prefContent", {duration: 1, to: 0.01, 
+//				queue: { position:'end', scope: 'FEED_TAB', limit: 1 } } );
+
 			if (id == "feedConfig") {
 				updateFeedList();
 			} else if (id == "filterConfig") {
@@ -1237,20 +1083,24 @@ function selectTab(id, noupdate, subop) {
 				updatePrefsList();
 			} else if (id == "userConfig") {
 				updateUsersList();
-			} else if (id == "feedBrowser") {
-				updateBigFeedBrowser();
 			}
 		}
+
+		/* clean selection from all tabs */
 	
-		var tab = document.getElementById(active_tab + "Tab");
-	
-		if (tab) {
-			if (tab.className.match("Selected")) {
+		var tabs_holder = $("prefTabs");
+		var tab = tabs_holder.firstChild;
+
+		while (tab) {
+			if (tab.className && tab.className.match("prefsTabSelected")) {
 				tab.className = "prefsTab";
 			}
+			tab = tab.nextSibling;
 		}
-	
-		tab = document.getElementById(id + "Tab");
+
+		/* mark new tab as selected */
+
+		tab = $(id + "Tab");
 	
 		if (tab) {
 			if (!tab.className.match("Selected")) {
@@ -1265,76 +1115,81 @@ function selectTab(id, noupdate, subop) {
 	}
 }
 
-function backend_sanity_check_callback() {
+function backend_sanity_check_callback2(transport) {
 
-	if (xmlhttp.readyState == 4) {
+	try {
 
-		try {
+		if (sanity_check_done) {
+			fatalError(11, "Sanity check request received twice. This can indicate "+
+		      "presence of Firebug or some other disrupting extension. "+
+				"Please disable it and try again.");
+			return;
+		}
 
-			if (sanity_check_done) {
-				fatalError(11, "Sanity check request received twice. This can indicate "+
-			      "presence of Firebug or some other disrupting extension. "+
-					"Please disable it and try again.");
-				return;
-			}
+		if (!transport.responseXML) {
+			fatalError(3, "Sanity Check: Received reply is not XML", 
+				transport.responseText);
+			return;
+		}
 
-			if (!xmlhttp.responseXML) {
-				fatalError(3, "[D001, Received reply is not XML]: " + xmlhttp.responseText);
-				return;
-			}
-	
-			var reply = xmlhttp.responseXML.firstChild.firstChild;
-	
-			if (!reply) {
-				fatalError(3, "[D002, Invalid RPC reply]: " + xmlhttp.responseText);
-				return;
-			}
-	
-			var error_code = reply.getAttribute("error-code");
-		
-			if (error_code && error_code != 0) {
-				return fatalError(error_code, reply.getAttribute("error-msg"));
-			}
+		var reply = transport.responseXML.firstChild.firstChild;
+
+		if (!reply) {
+			fatalError(3, "Sanity Check: Invalid RPC reply", transport.responseText);
+			return;
+		}
+
+		var error_code = reply.getAttribute("error-code");
 	
-			debug("sanity check ok");
+		if (error_code && error_code != 0) {
+			return fatalError(error_code, reply.getAttribute("error-msg"));
+		}
 
-			var params = reply.nextSibling;
+		debug("sanity check ok");
 
-			if (params) {
-				debug('reading init-params...');
-				var param = params.firstChild;
+		var params = reply.nextSibling;
 
-				while (param) {
-					var k = param.getAttribute("key");
-					var v = param.getAttribute("value");
-					debug(k + " => " + v);
-					init_params[k] = v;					
-					param = param.nextSibling;
-				}
+		if (params) {
+			debug('reading init-params...');
+			var param = params.firstChild;
+
+			while (param) {
+				var k = param.getAttribute("key");
+				var v = param.getAttribute("value");
+				debug(k + " => " + v);
+				init_params[k] = v;					
+				param = param.nextSibling;
 			}
+		}
 
-			sanity_check_done = true;
+		sanity_check_done = true;
 
-			init_second_stage();
+		init_second_stage();
 
-		} catch (e) {
-			exception_error("backend_sanity_check_callback", e);
-		}
-	} 
+	} catch (e) {
+		exception_error("backend_sanity_check_callback", e);
+	}
 }
 
 function init_second_stage() {
 
 	try {
 		active_tab = getInitParam("prefs_active_tab");
+		if (!$(active_tab+"Tab")) active_tab = "genConfig";
 		if (!active_tab || active_tab == '0') active_tab = "genConfig";
 
 		document.onkeydown = pref_hotkey_handler;
+		document.onmousedown = mouse_down_handler;
+		document.onmouseup = mouse_up_handler;
 
 		var tab = getURLParam('tab');
 		
 		caller_subop = getURLParam('subop');
 
+		if (getURLParam("subopparam")) {
+			caller_subop = caller_subop + ":" + getURLParam("subopparam");
+		}
+
 		if (tab) {
 			active_tab = tab;
 		}
@@ -1345,6 +1200,9 @@ function init_second_stage() {
 			selectTab(active_tab);
 		}
 		notify("");
+
+		loading_set_progress(60);
+
 	} catch (e) {
 		exception_error("init_second_stage", e);
 	}
@@ -1358,21 +1216,18 @@ function init() {
 		arguments.callee.done = true;		
 
 		if (getURLParam('debug')) {
-			document.getElementById('debug_output').style.display = 'block';
+			Element.show("debug_output");
 			debug('debug mode activated');
 		}
 
-		// IE kludge
-		if (!xmlhttp) {
-			document.getElementById("prefContent").innerHTML = 
-				"<b>Fatal error:</b> This program needs XmlHttpRequest " + 
-				"to function properly. Your browser doesn't seem to support it.";
-			return;
-		}
+		loading_set_progress(30);
 
-		xmlhttp.open("GET", "backend.php?op=rpc&subop=sanityCheck", true);
-		xmlhttp.onreadystatechange=backend_sanity_check_callback;
-		xmlhttp.send(null);
+		var query = "backend.php?op=rpc&subop=sanityCheck";
+
+		new Ajax.Request(query, {
+			onComplete: function(transport) { 
+				backend_sanity_check_callback2(transport);
+			} });
 
 	} catch (e) {
 		exception_error("init", e);
@@ -1381,24 +1236,22 @@ function init() {
 
 function categorizeSelectedFeeds() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	var sel_rows = getSelectedFeeds();
 
-	var cat_sel = document.getElementById("sfeed_set_fcat");
+	var cat_sel = $("sfeed_set_fcat");
 	var cat_id = cat_sel[cat_sel.selectedIndex].value;
 
 	if (sel_rows.length > 0) {
 
 		notify_progress("Changing category of selected feeds...");
 
-		xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=categorize&ids="+
-			param_escape(sel_rows.toString()) + "&cat_id=" + param_escape(cat_id), true);
-		xmlhttp.onreadystatechange=feedlist_callback;
-		xmlhttp.send(null);
+		var query = "backend.php?op=pref-feeds&subop=categorize&ids="+
+			param_escape(sel_rows.toString()) + "&cat_id=" + param_escape(cat_id);
+
+		new Ajax.Request(query, {
+			onComplete: function(transport) { 
+				feedlist_callback2(transport); 
+			} });
 
 	} else {
 
@@ -1418,10 +1271,12 @@ function validatePrefsReset() {
 			query = query + "&subop=reset-config";
 			debug(query);
 
-			xmlhttp.open("POST", "backend.php", true);
-			xmlhttp.onreadystatechange=prefs_reset_callback;
-			xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-			xmlhttp.send(query);
+			new Ajax.Request("backend.php", {
+				parameters: query,
+				onComplete: function(transport) { 
+					prefs_reset_callback2(transport);
+				} });
+
 		}
 
 	} catch (e) {
@@ -1432,14 +1287,6 @@ function validatePrefsReset() {
 
 }
 
-function browseFeeds(limit) {
-
-	xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=browse", true);
-	xmlhttp.onreadystatechange=infobox_callback;
-	xmlhttp.send(null);
-
-}
-
 function feedBrowserSubscribe() {
 	try {
 
@@ -1447,10 +1294,15 @@ function feedBrowserSubscribe() {
 
 		if (selected.length > 0) {
 			closeInfoBox();
-			xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=massSubscribe&ids="+
-				param_escape(selected.toString()), true);
-			xmlhttp.onreadystatechange=feedlist_callback;
-			xmlhttp.send(null);
+
+			var query = "backend.php?op=pref-feeds&subop=massSubscribe&ids="+
+				param_escape(selected.toString());
+
+			new Ajax.Request(query, {
+				onComplete: function(transport) { 
+					feedlist_callback2(transport); 
+				} });
+
 		} else {
 			alert(__("No feeds are selected."));
 		}
@@ -1460,61 +1312,9 @@ function feedBrowserSubscribe() {
 	}
 }
 
-function updateBigFeedBrowser(limit) {
-
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-//	p_notify("Loading, please wait...");
-
-	var query = "backend.php?op=pref-feed-browser";
-
-	var limit_sel = document.getElementById("feedBrowserLimit");
-
-	if (limit_sel) {
-		var limit = limit_sel[limit_sel.selectedIndex].value;
-		query = query + "&limit=" + param_escape(limit);
-	}
-
-	xmlhttp.open("GET", query, true);
-	xmlhttp.onreadystatechange=feed_browser_callback;
-	xmlhttp.send(null);
-}
-
-function browserToggleExpand(id) {
-	try {
-/*		if (feed_to_expand && feed_to_expand != id) {
-			var d = document.getElementById("BRDET-" + feed_to_expand);
-			d.style.display = "none";
-		} */
-
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return
-		}
-
-/*		if (feed_to_expand && id != feed_to_expand) {
-			Effect.Fade('BRDET-' + feed_to_expand, {duration : 0.5});
-		} */
-
-		var d = document.getElementById("BRDET-" + id);
-	
-		if (Element.visible(d)) {
-			Effect.Fade(d, {duration : 0.5});
-		} else {
-			feed_to_expand = id;
-
-			xmlhttp.open("GET", "backend.php?op=pref-feed-browser&subop=details&id="
-				+ param_escape(id), true);
-			xmlhttp.onreadystatechange=expand_feed_callback;
-			xmlhttp.send(null);
-		}
-
-	} catch (e) {
-		exception_error("browserToggleExpand", e);
-	}
+function updateBigFeedBrowserBtn() {
+	notify_progress("Loading, please wait...");
+	return updateBigFeedBrowser();
 }
 
 function selectPrefRows(kind, select) {
@@ -1604,60 +1404,205 @@ function pref_hotkey_handler(e) {
 	try {
 
 		var keycode;
-	
-		if (!hotkeys_enabled) return;
-	
+		var shift_key = false;
+
+		try {
+			shift_key = e.shiftKey;
+		} catch (e) {
+
+		}
+
 		if (window.event) {
 			keycode = window.event.keyCode;
 		} else if (e) {
 			keycode = e.which;
 		}
-	
+
+		var keychar = String.fromCharCode(keycode);
+
+		if (keycode == 27) { // escape
+			if (Element.visible("hotkey_help_overlay")) {
+				Element.hide("hotkey_help_overlay");
+			}
+			colorPickerHideAll();
+			hotkey_prefix = false;
+			closeInfoBox();
+		} 
+
+		if (!hotkeys_enabled) {
+			debug("hotkeys disabled");
+			return;
+		}
+
+		if (keycode == 16) return; // ignore lone shift
+
+		if ((keycode == 67 || keycode == 71) && !hotkey_prefix) {
+			hotkey_prefix = keycode;
+			debug("KP: PREFIX=" + keycode + " CHAR=" + keychar);
+			return;
+		}
+
+		if (Element.visible("hotkey_help_overlay")) {
+			Element.hide("hotkey_help_overlay");
+		}
+
 		if (keycode == 13 || keycode == 27) {
 			seq = "";
 		} else {
 			seq = seq + "" + keycode;
 		}
 
+		/* Global hotkeys */
 
-	if (document.getElementById("piggie")) {
+		if (!hotkey_prefix) {
+
+			if (keycode == 68 && shift_key) { // d
+				if (!Element.visible("debug_output")) {
+					Element.show("debug_output");
+					debug('debug mode activated');
+				} else {
+					Element.hide("debug_output");
+				}
+				return;
+			}
 	
-		if (seq.match("807371717369")) {
-			seq = "";
-			localPiggieFunction(true);
+			if ((keycode == 191 || keychar == '?') && shift_key) { // ?
+				if (!Element.visible("hotkey_help_overlay")) {
+					//Element.show("hotkey_help_overlay");
+					Effect.Appear("hotkey_help_overlay", {duration : 0.3});
+				} else {
+					Element.hide("hotkey_help_overlay");
+				}
+				return false;
+			}
+
+			if (keycode == 191 || keychar == '/') { // /
+				var search_boxes = new Array("label_search", 
+					"feed_search", "filter_search", "user_search", "feed_browser_search");
+
+				for (var i = 0; i < search_boxes.length; i++) {
+					var elem = $(search_boxes[i]);
+					if (elem) {
+						focus_element(search_boxes[i]);
+						return false;
+					}
+				}
+			}
+		}
+
+		/* Prefix c */
+
+		if (hotkey_prefix == 67) { // c
+			hotkey_prefix = false;
+
+			if (keycode == 70) { // f
+				displayDlg("quickAddFilter");
+				return false;
+			}
+
+			if (keycode == 83) { // s
+				displayDlg("quickAddFeed");
+				return false;
+			}
+
+/*			if (keycode == 76) { // l
+				displayDlg("quickAddLabel");
+				return false;
+			} */
+
+			if (keycode == 85) { // u
+				// no-op
+			}
+
+			if (keycode == 67) { // c
+				editFeedCats();
+				return false;
+			}
+
+			if (keycode == 84 && shift_key) { // T
+				browseFeeds();
+				return false;
+			}
+
+		}
+
+		/* Prefix g */
+
+		if (hotkey_prefix == 71) { // g
+
+			hotkey_prefix = false;
+
+			if (keycode == 49 && $("genConfigTab")) { // 1
+				selectTab("genConfig");
+				return false;
+			}
+
+			if (keycode == 50 && $("feedConfigTab")) { // 2
+				selectTab("feedConfig");
+				return false;
+			}
+
+			if (keycode == 51 && $("filterConfigTab")) { // 4
+				selectTab("filterConfig");
+				return false;
+			}
+
+			if (keycode == 52 && $("labelConfigTab")) { // 5
+				selectTab("labelConfig");
+				return false;
+			}
+
+			if (keycode == 53 && $("userConfigTab")) { // 6
+				selectTab("userConfig");
+				return false;
+			}
+
+			if (keycode == 88) { // x
+				return gotoMain();
+			}
+
+		}
+
+		if ($("piggie")) {
+	
+			if (seq.match("807371717369")) {
+				seq = "";
+				piggie(true);
+			} else {
+				piggie(false);
+			}
+		}
+
+		if (hotkey_prefix) {
+			debug("KP: PREFIX=" + hotkey_prefix + " CODE=" + keycode + " CHAR=" + keychar);
 		} else {
-			localPiggieFunction(false);
+			debug("KP: CODE=" + keycode + " CHAR=" + keychar);
 		}
-	}
 
 	} catch (e) {
 		exception_error("pref_hotkey_handler", e);
 	}
 }
 
-function userSwitch() {
-	var chooser = document.getElementById("userSwitch");
-	var user = chooser[chooser.selectedIndex].value;
-	window.location = "prefs.php?swu=" + user;
-}
-
 function editFeedCats() {
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	document.getElementById("subscribe_to_feed_btn").disabled = true;
-
 	try {
-		document.getElementById("top25_feeds_btn").disabled = true;
+		$("subscribe_to_feed_btn").disabled = true;
+	
+		try {
+			$("top25_feeds_btn").disabled = true;
+		} catch (e) {
+			// this button is not always available, no-op if not found
+		}
+	
+		var query = "backend.php?op=pref-feeds&subop=editCats";
+
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+				infobox_feed_cat_callback2(transport);
+			} });
 	} catch (e) {
-		// this button is not always available, no-op if not found
+		exception_error("editFeedCats", e);
 	}
-
-	xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=editCats", true);
-	xmlhttp.onreadystatechange=infobox_feed_cat_callback;
-	xmlhttp.send(null);
 }
 
 function showFeedsWithErrors() {
@@ -1668,11 +1613,6 @@ function changeUserPassword() {
 
 	try {
 
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return false;
-		}
-	
 		var f = document.forms["change_pass_form"];
 
 		if (f) {
@@ -1706,11 +1646,13 @@ function changeUserPassword() {
 		var query = Form.serialize("change_pass_form");
 	
 		notify_progress("Trying to change password...");
-	
-		xmlhttp.open("POST", "backend.php", true);
-		xmlhttp.onreadystatechange=changepass_callback;
-		xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		xmlhttp.send(query);
+
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				changepass_callback2(transport); 
+			} });
+
 
 	} catch (e) {
 		exception_error("changeUserPassword", e);
@@ -1723,19 +1665,15 @@ function changeUserEmail() {
 
 	try {
 
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return false;
-		}
-	
 		var query = Form.serialize("change_email_form");
 	
 		notify_progress("Trying to change e-mail...");
 	
-		xmlhttp.open("POST", "backend.php", true);
-		xmlhttp.onreadystatechange=notify_callback;
-		xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-		xmlhttp.send(query);
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				notify_callback2(transport); 
+			} });
 
 	} catch (e) {
 		exception_error("changeUserPassword", e);
@@ -1752,20 +1690,19 @@ function feedlistToggleSLAT() {
 
 function pubRegenKey() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return false;
-	}
-
 	var ok = confirm(__("Replace current publishing address with a new one?"));
 
 	if (ok) {
 
 		notify_progress("Trying to change address...");
 
-		xmlhttp.open("GET", "backend.php?op=rpc&subop=regenPubKey");
-		xmlhttp.onreadystatechange=replace_pubkey_callback;
-		xmlhttp.send(null);
+		var query = "backend.php?op=rpc&subop=regenPubKey";
+
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					replace_pubkey_callback(transport);
+				} });
+
 	}
 
 	return false;
@@ -1782,10 +1719,12 @@ function validatePrefsSave() {
 			query = query + "&subop=save-config";
 			debug(query);
 
-			xmlhttp.open("POST", "backend.php", true);
-			xmlhttp.onreadystatechange=notify_callback;
-			xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-			xmlhttp.send(query);
+			new Ajax.Request("backend.php", {
+				parameters: query,
+				onComplete: function(transport) { 
+				notify_callback2(transport); 
+			} });
+
 		}
 
 	} catch (e) {
@@ -1794,3 +1733,402 @@ function validatePrefsSave() {
 
 	return false;
 }
+
+function feedActionChange() {
+	try {
+		var chooser = $("feedActionChooser");
+		var opid = chooser[chooser.selectedIndex].value;
+
+		chooser.selectedIndex = 0;
+		feedActionGo(opid);
+	} catch (e) {
+		exception_error("feedActionChange", e);
+	}
+}
+
+function feedActionGo(op) {	
+	try {
+		if (op == "facEdit") {
+
+			var rows = getSelectedFeeds();
+
+			if (rows.length > 1) {
+				editSelectedFeeds();
+			} else {
+				editSelectedFeed();
+			}
+		}
+
+		if (op == "facClear") {
+			clearSelectedFeeds();
+		}
+
+		if (op == "facPurge") {
+			purgeSelectedFeeds();
+		}
+
+		if (op == "facEditCats") {
+			editFeedCats();
+		}
+
+		if (op == "facRescore") {
+			rescoreSelectedFeeds();
+		}
+
+		if (op == "facUnsubscribe") {
+			removeSelectedFeeds();
+		}
+
+	} catch (e) {
+		exception_error("feedActionGo", e);
+
+	}
+}
+
+function clearFeedArticles(feed_id) {
+
+	notify_progress("Clearing feed...");
+
+	var query = "backend.php?op=pref-feeds&quiet=1&subop=clear&id=" + feed_id;
+
+	new Ajax.Request(query,	{
+		onComplete: function(transport) {
+				notify('');
+			} });
+
+	return false;
+}
+
+function rescoreSelectedFeeds() {
+
+	var sel_rows = getSelectedFeeds();
+
+	if (sel_rows.length > 0) {
+
+		//var ok = confirm(__("Rescore last 100 articles in selected feeds?"));
+		var ok = confirm(__("Rescore articles in selected feeds?"));
+
+		if (ok) {
+			notify_progress("Rescoring selected feeds...", true);
+	
+			var query = "backend.php?op=pref-feeds&subop=rescore&quiet=1&ids="+
+				param_escape(sel_rows.toString());
+
+			new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						notify_callback2(transport);
+			} });
+
+		}
+	} else {
+		alert(__("No feeds are selected."));
+	}
+
+	return false;
+}
+
+function rescore_all_feeds() {
+	var ok = confirm(__("Rescore all articles? This operation may take a lot of time."));
+
+	if (ok) {
+		notify_progress("Rescoring feeds...", true);
+
+		var query = "backend.php?op=pref-feeds&subop=rescoreAll&quiet=1";
+
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					notify_callback2(transport);
+		} });
+	}
+}
+
+function removeFilter(id, title) {
+
+	try {
+
+		var msg = __("Remove filter %s?").replace("%s", title);
+	
+		var ok = confirm(msg);
+	
+		if (ok) {
+			closeInfoBox();
+	
+			notify_progress("Removing filter...");
+		
+			var query = "backend.php?op=pref-filters&subop=remove&ids="+
+				param_escape(id);
+
+			new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						filterlist_callback2(transport);
+			} });
+
+		}
+
+	} catch (e) {
+		exception_error("removeFilter", e);
+	}
+
+	return false;
+}
+
+function unsubscribeFeed(id, title) {
+
+	try {
+
+		var msg = __("Unsubscribe from %s?").replace("%s", title);
+	
+		var ok = confirm(msg);
+	
+		if (ok) {
+			closeInfoBox();
+	
+			notify_progress("Removing feed...");
+		
+			var query = "backend.php?op=pref-feeds&subop=remove&ids="+
+				param_escape(id);
+	
+			new Ajax.Request(query,	{
+					onComplete: function(transport) {
+							feedlist_callback2(transport);
+				} });
+		}
+	
+	} catch (e) {
+		exception_error("unsubscribeFeed", e);
+	}
+
+	return false;
+
+}
+
+function feedsEditSave() {
+	try {
+
+		var ok = confirm(__("Save changes to selected feeds?"));
+
+		if (ok) {
+
+			var f = document.forms["batch_edit_feed_form"];
+
+			var query = Form.serialize("batch_edit_feed_form");
+
+			/* Form.serialize ignores unchecked checkboxes */
+
+			if (!query.match("&hidden=") && 
+					f.hidden.disabled == false) {
+				query = query + "&hidden=false";
+			}
+
+			if (!query.match("&rtl_content=") && 
+					f.rtl_content.disabled == false) {
+				query = query + "&rtl_content=false";
+			}
+
+			if (!query.match("&private=") && 
+					f.private.disabled == false) {
+				query = query + "&private=false";
+			}
+
+			if (!query.match("&cache_images=") && 
+					f.cache_images.disabled == false) {
+				query = query + "&cache_images=false";
+			}
+
+			if (!query.match("&include_in_digest=") && 
+					f.include_in_digest.disabled == false) {
+				query = query + "&include_in_digest=false";
+			}
+	
+			closeInfoBox();
+	
+			notify_progress("Saving feeds...");
+	
+			new Ajax.Request("backend.php", {
+				parameters: query,
+				onComplete: function(transport) { 
+					feedlist_callback2(transport); 
+				} });
+
+		}
+
+		return false;
+	} catch (e) {
+		exception_error("feedsEditSave", e);
+	}
+}
+
+function batchFeedsToggleField(cb, elem, label) {
+	try {
+		var f = document.forms["batch_edit_feed_form"];
+		var l = $(label);
+
+		if (cb.checked) {
+			f[elem].disabled = false;
+
+			if (l) {
+				l.className = "";
+			};
+
+//			new Effect.Highlight(f[elem], {duration: 1, startcolor: "#fff7d5",
+//				queue: { position:'end', scope: 'BPEFQ', limit: 1 } } );
+
+		} else {
+			f[elem].disabled = true;
+
+			if (l) {
+				l.className = "insensitive";
+			};
+
+		}
+	} catch (e) {
+		exception_error("batchFeedsToggleField", e);
+	}
+}
+
+function labelColorReset() {
+	try {
+		var labels = getSelectedLabels();
+
+		var ok = confirm(__("Reset label colors to default?"));
+
+		if (ok) {
+
+			var query = "backend.php?op=pref-labels&subop=color-reset&ids="+
+				param_escape(labels.toString());
+
+			new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						labellist_callback2(transport);
+					} });
+		}
+
+	} catch (e) {
+		exception_error("labelColorReset", e);
+	}
+}
+
+function labelColorAsk(id, kind) {
+	try {
+
+		var p = null
+
+		if (kind == "fg") {
+			p = prompt(__("Please enter new label foreground color:"));
+		} else {
+			p = prompt(__("Please enter new label background color:"));
+		}
+
+		if (p != null) {
+
+			var query = "backend.php?op=pref-labels&subop=color-set&kind=" + kind +
+				"&ids="+	param_escape(id) + "&color=" + param_escape(p);
+
+			selectPrefRows('label', false);
+
+			var e = $("LICID-" + id);
+
+			if (e) {		
+				if (kind == "fg") {
+					e.style.color = p
+				} else {
+					e.style.backgroundColor = p;
+				}
+			}
+
+			new Ajax.Request(query);
+		}
+
+	} catch (e) {
+		exception_error("labelColorReset", e);
+	}
+}
+
+
+function colorPicker(id, fg, bg) {
+	try {
+		var picker = $("colorPicker-" + id);
+
+		if (picker) Element.show(picker);
+
+	} catch (e) {
+		exception_error("colorPicker", e);
+	}
+}
+
+function colorPickerHideAll() {
+	try {
+		if ($("prefLabelList")) {
+
+			var elems = $("prefLabelList").getElementsByTagName("DIV");
+
+			for (var i = 0; i < elems.length; i++) {
+				if (elems[i].id && elems[i].id.match("colorPicker-")) {
+					Element.hide(elems[i]);
+				}
+			}
+		}
+
+	} catch (e) {
+		exception_error("colorPickerHideAll", e);
+	}
+}
+
+function colorPickerDo(id, fg, bg) {
+	try {
+
+		var query = "backend.php?op=pref-labels&subop=color-set&kind=both"+
+			"&ids=" + param_escape(id) + "&fg=" + param_escape(fg) + 
+			"&bg=" + param_escape(bg);
+
+		var e = $("LICID-" + id);
+
+		if (e) {		
+			e.style.color = fg;
+			e.style.backgroundColor = bg;
+		}
+
+		new Ajax.Request(query);
+
+	} catch (e) {
+		exception_error("colorPickerDo", e);
+	}
+}
+
+function colorPickerActive(b) {
+	color_picker_active = b;
+}
+
+function mouse_down_handler(e) {
+	try {
+
+		/* do not prevent right click */
+		if (e.button && e.button == 2) return;
+
+		if (selection_disabled) {
+			document.onselectstart = function() { return false; };
+			return false;
+		}
+
+	} catch (e) {
+		exception_error("mouse_move_handler", e);
+	}
+}
+
+function mouse_up_handler(e) {
+	try {
+		mouse_is_down = false;
+
+		if (!selection_disabled) {
+			document.onselectstart = null;
+		}
+
+		if (!color_picker_active) {
+			colorPickerHideAll();
+		}
+
+	} catch (e) {
+		exception_error("mouse_move_handler", e);
+	}
+}
+