X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=prefs.js;h=fc7d1db3673756c5dea12c30a8cef94e867a44ea;hb=a8caa4c7d30925f270a6ed6e279e52da96fad4b4;hp=27367d71255bfddf081cb8009b6924104d686ec5;hpb=60715b53d58495636fe593bca12faaa1f6ec8a75;p=tt-rss.git

diff --git a/prefs.js b/prefs.js
index 27367d71..fc7d1db3 100644
--- a/prefs.js
+++ b/prefs.js
@@ -1,61 +1,40 @@
-var xmlhttp = false;
-
 var active_feed_cat = false;
 var active_tab = false;
 
-var xmlhttp = Ajax.getTransport();
-
 var init_params = new Array();
 
 var caller_subop = false;
 var sanity_check_done = false;
 var hotkey_prefix = false;
 
-function infobox_callback() {
-	if (xmlhttp.readyState == 4) {
-		infobox_callback2(xmlhttp);
-	}
-}
-
-function infobox_submit_callback() {
-	if (xmlhttp.readyState == 4) {
-		infobox_submit_callback2(xmlhttp);
-	}
-}
-
+var color_picker_active = false;
+var selection_disabled = false;
+var mouse_is_down = false;
 
-function replace_pubkey_callback() {
-	if (xmlhttp.readyState == 4) {
-		try {	
-			var link = document.getElementById("pubGenAddress");
+function replace_pubkey_callback(transport) {
+	try {	
+		var link = $("pubGenAddress");
 
-			if (xmlhttp.responseXML) {
+		if (transport.responseXML) {
 
-				var new_link = xmlhttp.responseXML.getElementsByTagName("link")[0];
+			var new_link = transport.responseXML.getElementsByTagName("link")[0];
 
-				if (new_link) {
-					link.href = new_link.firstChild.nodeValue;
-					//link.innerHTML = new_link.firstChild.nodeValue;
+			if (new_link) {
+				link.href = new_link.firstChild.nodeValue;
+				//link.innerHTML = new_link.firstChild.nodeValue;
 
-					new Effect.Highlight(link);
-
-					notify_info("Published feed URL changed.");
-				} else {
-					notify_error("Could not change feed URL.");
-				}
+				new Effect.Highlight(link);
 
+				notify_info("Published feed URL changed.");
 			} else {
 				notify_error("Could not change feed URL.");
 			}
-		} catch (e) {
-			exception_error("replace_pubkey_callback", e);
-		}
-	}
-}
 
-function feedlist_callback() {
-	if (xmlhttp.readyState == 4) {
-		return feedlist_callback2(xmlhttp);
+		} else {
+			notify_error("Could not change feed URL.");
+		}
+	} catch (e) {
+		exception_error("replace_pubkey_callback", e);
 	}
 }
 
@@ -63,7 +42,7 @@ function feedlist_callback2(transport) {
 
 	try {	
 
-		var container = document.getElementById('prefContent');	
+		var container = $('prefContent');	
 		container.innerHTML=transport.responseText;
 		selectTab("feedConfig", true);
 
@@ -93,7 +72,7 @@ function dlg_frefresh_callback(transport) {
 }
 
 function filterlist_callback2(transport) {
-	var container = document.getElementById('prefContent');
+	var container = $('prefContent');
 	container.innerHTML=transport.responseText;
 	if (typeof correctPNG != 'undefined') {
 		correctPNG();
@@ -102,10 +81,26 @@ function filterlist_callback2(transport) {
 	remove_splash();
 }
 
+function init_label_inline_editor() {
+	try {
+		if ($("prefLabelList")) {
+			var elems = $("prefLabelList").getElementsByTagName("SPAN");
+
+			for (var i = 0; i < elems.length; i++) {
+				if (elems[i].id && elems[i].id.match("LILT-")) {
+
+					var id = elems[i].id.replace("LILT-", "");
+
+					new Ajax.InPlaceEditor(elems[i],
+						'backend.php?op=pref-labels&subop=save&id=' + id,
+						{cols: 20, rows: 1});
+
+				}
+			}
+		}
 
-function filterlist_callback() {
-	if (xmlhttp.readyState == 4) {
-		filterlist_callback2(xmlhttp);
+	} catch (e) {
+		exception_error("init_label_inline_editor", e);
 	}
 }
 
@@ -113,23 +108,11 @@ function labellist_callback2(transport) {
 
 	try {
 
-		var container = document.getElementById('prefContent');
+		var container = $('prefContent');
 			closeInfoBox();
 			container.innerHTML=transport.responseText;
-	
-			if (document.getElementById("prefLabelList")) {
-				var elems = document.getElementById("prefLabelList").getElementsByTagName("SPAN");
 
-				for (var i = 0; i < elems.length; i++) {
-					if (elems[i].id && elems[i].id.match("LILT-")) {
-
-						var id = elems[i].id.replace("LILT-", "");
-							new Ajax.InPlaceEditor(elems[i],
-							'backend.php?op=pref-labels&subop=save&id=' + id,
-							{cols: 20, rows: 1});
-					}
-				}
-			}
+			init_label_inline_editor();
 	
 			if (typeof correctPNG != 'undefined') {
 				correctPNG();
@@ -142,86 +125,67 @@ function labellist_callback2(transport) {
 	}
 }
 
-function feed_browser_callback() {
-	var container = document.getElementById('prefContent');
-	if (xmlhttp.readyState == 4) {
-		container.innerHTML=xmlhttp.responseText;
-		notify("");
-		remove_splash();
-	}
-}
-
-function userlist_callback() {
-	var container = document.getElementById('prefContent');
-	if (xmlhttp.readyState == 4) {
-		container.innerHTML=xmlhttp.responseText;
-		notify("");
-		remove_splash();
+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_callback2(xmlhttp);
-	} 
-}
-
 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 init_cat_inline_editor() {
 	try {
 
-		if (document.getElementById("prefFeedCatList")) {
-			var elems = document.getElementById("prefFeedCatList").getElementsByTagName("SPAN");
+		if ($("prefFeedCatList")) {
+			var elems = $("prefFeedCatList").getElementsByTagName("SPAN");
 
 			for (var i = 0; i < elems.length; i++) {
 				if (elems[i].id && elems[i].id.match("FCATT-")) {
@@ -250,11 +214,11 @@ function updateFeedList(sort_key) {
 
 	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) {
@@ -277,21 +241,24 @@ function updateFeedList(sort_key) {
 
 function updateUsersList(sort_key) {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var user_search = document.getElementById("user_search");
-	var search = "";
-	if (user_search) { search = user_search.value; }
+	try {
 
-	xmlhttp.open("GET", "backend.php?op=pref-users&sort="
-		+ param_escape(sort_key) +
-		"&search=" + param_escape(search), 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() {
@@ -329,7 +296,7 @@ function addFeed() {
 
 	try {
 
-		var link = document.getElementById("fadd_link");
+		var link = $("fadd_link");
 	
 		if (link.value.length == 0) {
 			alert(__("Error: No feed URL given."));
@@ -358,12 +325,7 @@ function addFeed() {
 
 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."));
@@ -381,31 +343,36 @@ function addFeedCat() {
 		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 editUser(id) {
@@ -537,28 +504,33 @@ function removeSelectedLabels() {
 
 function removeSelectedUsers() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var sel_rows = getSelectedUsers();
-
-	if (sel_rows.length > 0) {
-
-		var ok = confirm(__("Remove selected users?"));
+	try {
 
-		if (ok) {
-			notify_progress("Removing selected users...");
+		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());
 	
-			xmlhttp.open("GET", "backend.php?op=pref-users&subop=remove&ids="+
-				param_escape(sel_rows.toString()), true);
-			xmlhttp.onreadystatechange=userlist_callback;
-			xmlhttp.send(null);
+				new Ajax.Request(query, {
+					onComplete: function(transport) { 
+						userlist_callback2(transport); 
+					} });
+	
+			}
+	
+		} else {
+			alert(__("No users are selected."));
 		}
 
-	} else {
-		alert(__("No users are selected."));
+	} catch (e) {
+		exception_error("removeSelectedUsers", e);
 	}
 
 	return false;
@@ -566,27 +538,32 @@ function removeSelectedUsers() {
 
 function removeSelectedFilters() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var sel_rows = getSelectedFilters();
-
-	if (sel_rows.length > 0) {
-
-		var ok = confirm(__("Remove selected filters?"));
+	try {
 
-		if (ok) {
-			notify_progress("Removing selected filters...");
+		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());
 	
-			xmlhttp.open("GET", "backend.php?op=pref-filters&subop=remove&ids="+
-				param_escape(sel_rows.toString()), true);
-			xmlhttp.onreadystatechange=filterlist_callback;
-			xmlhttp.send(null);
+				new Ajax.Request(query,	{
+						onComplete: function(transport) {
+								filterlist_callback2(transport);
+					} });
+	
+			}
+		} else {
+			alert(__("No filters are selected."));
 		}
-	} else {
-		alert(__("No filters are selected."));
+
+	} catch (e) {
+		exception_error("removeSelectedFilters", e);
 	}
 
 	return false;
@@ -656,11 +633,6 @@ function clearSelectedFeeds() {
 
 function purgeSelectedFeeds() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	var sel_rows = getSelectedFeeds();
 
 	if (sel_rows.length > 0) {
@@ -692,11 +664,6 @@ function purgeSelectedFeeds() {
 
 function removeSelectedFeedCats() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	var sel_rows = getSelectedFeedCats();
 
 	if (sel_rows.length > 0) {
@@ -727,14 +694,9 @@ function removeSelectedFeedCats() {
 
 function feedEditCancel() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	try {
-		document.getElementById("subscribe_to_feed_btn").disabled = false;
-		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
 	}
@@ -773,11 +735,6 @@ function feedEditSave() {
 
 function userEditCancel() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	selectPrefRows('user', false); // cleanup feed selection
 	closeInfoBox();
 
@@ -786,13 +743,8 @@ function userEditCancel() {
 
 function filterEditCancel() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
 	try {
-		document.getElementById("create_filter_btn").disabled = false;
+		$("create_filter_btn").disabled = false;
 		selectPrefRows('filter', false); // cleanup feed selection
 	} catch (e) { }
 
@@ -803,59 +755,56 @@ function filterEditCancel() {
 
 function userEditSave() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var login = document.forms["user_edit_form"].login.value;
+	try {
 
-	if (login.length == 0) {
-		alert(__("Login field cannot be blank."));
-		return;
-	}
+		var login = document.forms["user_edit_form"].login.value;
 	
-	notify_progress("Saving user...");
-
-	closeInfoBox();
-
-	var query = Form.serialize("user_edit_form");
+		if (login.length == 0) {
+			alert(__("Login field cannot be blank."));
+			return;
+		}
+		
+		notify_progress("Saving user...");
 	
-	xmlhttp.open("GET", "backend.php?" + query, true);			
-	xmlhttp.onreadystatechange=userlist_callback;
-	xmlhttp.send(null);
+		closeInfoBox();
+	
+		var query = Form.serialize("user_edit_form");
+		
+		new Ajax.Request("backend.php", {
+			parameters: query,
+			onComplete: function(transport) { 
+				userlist_callback2(transport); 
+			} });
+	
+	} 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;
 }
@@ -880,29 +829,40 @@ 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);
 	
-		xmlhttp.open("GET", "backend.php?op=pref-users&subop=resetPass&id=" +
-			param_escape(id), true);
-		xmlhttp.onreadystatechange=userlist_callback;
-		xmlhttp.send(null);
+			new Ajax.Request(query, {
+				onComplete: function(transport) { 
+					userlist_callback2(transport); 
+				} });
+	
+		}
+
+	} catch (e) {
+		exception_error("resetSelectedUserPass", e);
 	}
 }
 
@@ -1009,7 +969,7 @@ function editSelectedFeeds() {
 function piggie(enable) {
 	if (enable) {
 		debug("I LOVEDED IT!");
-		var piggie = document.getElementById("piggie");
+		var piggie = $("piggie");
 
 		Element.show(piggie);
 		Position.Center(piggie);
@@ -1020,7 +980,7 @@ function piggie(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."));
@@ -1031,21 +991,24 @@ function validateOpmlImport() {
 }
 
 function updateFilterList(sort_key) {
+	try {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+		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);
 
-	var filter_search = document.getElementById("filter_search");
-	var search = "";
-	if (filter_search) { search = filter_search.value; }
+		new Ajax.Request(query,	{
+				onComplete: function(transport) {
+						filterlist_callback2(transport);
+			} });
 
-	xmlhttp.open("GET", "backend.php?op=pref-filters&sort=" + 
-		param_escape(sort_key) + 
-		"&search=" + param_escape(search), true);
-	xmlhttp.onreadystatechange=filterlist_callback;
-	xmlhttp.send(null);
+	} catch (e) {
+		exception_error("updateFilterList", e);
+	}
 
 }
 
@@ -1053,7 +1016,7 @@ function updateLabelList(sort_key) {
 
 	try {
 
-		var label_search = document.getElementById("label_search");
+		var label_search = $("label_search");
 		var search = "";
 		if (label_search) { search = label_search.value; }
 	
@@ -1073,14 +1036,12 @@ function updateLabelList(sort_key) {
 
 function updatePrefsList() {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
+	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); 
+		} });
 
 }
 
@@ -1092,13 +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) { };
 
@@ -1132,7 +1088,7 @@ function selectTab(id, noupdate, subop) {
 
 		/* clean selection from all tabs */
 	
-		var tabs_holder = document.getElementById("prefTabs");
+		var tabs_holder = $("prefTabs");
 		var tab = tabs_holder.firstChild;
 
 		while (tab) {
@@ -1144,7 +1100,7 @@ function selectTab(id, noupdate, subop) {
 
 		/* mark new tab as selected */
 
-		tab = document.getElementById(id + "Tab");
+		tab = $(id + "Tab");
 	
 		if (tab) {
 			if (!tab.className.match("Selected")) {
@@ -1159,73 +1115,72 @@ 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, "Sanity Check: Received reply is not XML", 
-					xmlhttp.responseText);
-				return;
-			}
-	
-			var reply = xmlhttp.responseXML.firstChild.firstChild;
-	
-			if (!reply) {
-				fatalError(3, "Sanity Check: 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 (!document.getElementById(active_tab+"Tab")) active_tab = "genConfig";
+		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');
 		
@@ -1265,19 +1220,14 @@ function init() {
 			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);
@@ -1286,14 +1236,9 @@ 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) {
@@ -1326,10 +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) {
@@ -1477,6 +1424,7 @@ function pref_hotkey_handler(e) {
 			if (Element.visible("hotkey_help_overlay")) {
 				Element.hide("hotkey_help_overlay");
 			}
+			colorPickerHideAll();
 			hotkey_prefix = false;
 			closeInfoBox();
 		} 
@@ -1533,7 +1481,7 @@ function pref_hotkey_handler(e) {
 					"feed_search", "filter_search", "user_search", "feed_browser_search");
 
 				for (var i = 0; i < search_boxes.length; i++) {
-					var elem = document.getElementById(search_boxes[i]);
+					var elem = $(search_boxes[i]);
 					if (elem) {
 						focus_element(search_boxes[i]);
 						return false;
@@ -1584,27 +1532,27 @@ function pref_hotkey_handler(e) {
 
 			hotkey_prefix = false;
 
-			if (keycode == 49 && document.getElementById("genConfigTab")) { // 1
+			if (keycode == 49 && $("genConfigTab")) { // 1
 				selectTab("genConfig");
 				return false;
 			}
 
-			if (keycode == 50 && document.getElementById("feedConfigTab")) { // 2
+			if (keycode == 50 && $("feedConfigTab")) { // 2
 				selectTab("feedConfig");
 				return false;
 			}
 
-			if (keycode == 51 && document.getElementById("filterConfigTab")) { // 4
+			if (keycode == 51 && $("filterConfigTab")) { // 4
 				selectTab("filterConfig");
 				return false;
 			}
 
-			if (keycode == 52 && document.getElementById("labelConfigTab")) { // 5
+			if (keycode == 52 && $("labelConfigTab")) { // 5
 				selectTab("labelConfig");
 				return false;
 			}
 
-			if (keycode == 53 && document.getElementById("userConfigTab")) { // 6
+			if (keycode == 53 && $("userConfigTab")) { // 6
 				selectTab("userConfig");
 				return false;
 			}
@@ -1615,7 +1563,7 @@ function pref_hotkey_handler(e) {
 
 		}
 
-		if (document.getElementById("piggie")) {
+		if ($("piggie")) {
 	
 			if (seq.match("807371717369")) {
 				seq = "";
@@ -1638,10 +1586,10 @@ function pref_hotkey_handler(e) {
 
 function editFeedCats() {
 	try {
-		document.getElementById("subscribe_to_feed_btn").disabled = true;
+		$("subscribe_to_feed_btn").disabled = true;
 	
 		try {
-			document.getElementById("top25_feeds_btn").disabled = true;
+			$("top25_feeds_btn").disabled = true;
 		} catch (e) {
 			// this button is not always available, no-op if not found
 		}
@@ -1665,11 +1613,6 @@ function changeUserPassword() {
 
 	try {
 
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return false;
-		}
-	
 		var f = document.forms["change_pass_form"];
 
 		if (f) {
@@ -1703,11 +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);
@@ -1720,19 +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);
@@ -1749,42 +1690,22 @@ 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);
-	}
-
-	return false;
-}
+		var query = "backend.php?op=rpc&subop=regenPubKey";
 
-function pubToClipboard() {
-
-	try {
-
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return false;
-		}
-	
-		var link = document.getElementById("pubGenAddress");
-		alert(link.href);
+		new Ajax.Request(query,	{
+			onComplete: function(transport) {
+					replace_pubkey_callback(transport);
+				} });
 
-	} catch (e) {
-		exception_error("pubToClipboard", e);
 	}
 
-	return false; 
+	return false;
 }
 
 function validatePrefsSave() {
@@ -1798,10 +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) {
@@ -1813,7 +1736,7 @@ function validatePrefsSave() {
 
 function feedActionChange() {
 	try {
-		var chooser = document.getElementById("feedActionChooser");
+		var chooser = $("feedActionChooser");
 		var opid = chooser[chooser.selectedIndex].value;
 
 		chooser.selectedIndex = 0;
@@ -1951,40 +1874,37 @@ function removeFilter(id, title) {
 
 function unsubscribeFeed(id, title) {
 
-	if (!xmlhttp_ready(xmlhttp)) {
-		printLockingError();
-		return
-	}
-
-	var msg = __("Unsubscribe from %s?").replace("%s", title);
-
-	var ok = confirm(msg);
-
-	if (ok) {
-		closeInfoBox();
+	try {
 
-		notify_progress("Removing feed...");
+		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);
+				} });
+		}
 	
-		xmlhttp.open("GET", "backend.php?op=pref-feeds&subop=remove&ids="+
-			param_escape(id), true);
-		xmlhttp.onreadystatechange=filterlist_callback;
-		xmlhttp.send(null);
+	} catch (e) {
+		exception_error("unsubscribeFeed", e);
 	}
 
 	return false;
 
-	return false;
-
 }
 
 function feedsEditSave() {
 	try {
 
-		if (!xmlhttp_ready(xmlhttp)) {
-			printLockingError();
-			return
-		}
-
 		var ok = confirm(__("Save changes to selected feeds?"));
 
 		if (ok) {
@@ -2041,7 +1961,7 @@ function feedsEditSave() {
 function batchFeedsToggleField(cb, elem, label) {
 	try {
 		var f = document.forms["batch_edit_feed_form"];
-		var l = document.getElementById(label);
+		var l = $(label);
 
 		if (cb.checked) {
 			f[elem].disabled = false;
@@ -2066,4 +1986,149 @@ function batchFeedsToggleField(cb, elem, label) {
 	}
 }
 
+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);
+	}
+}