use popup feedbrowser for main UI (incomplete)

tt-rss.js

@@ -1422,3 +1422,31 @@ function addLabel() {
 function visitOfficialSite() {
 	window.open("http://tt-rss.org/");
 }
+
+function browseFeeds(limit) {
+
+	try {
+
+		var query = "backend.php?op=pref-feeds&subop=browse";
+
+		notify_progress("Loading, please wait...", true);
+
+		new Ajax.Request(query, {
+			onComplete: function(transport) { 
+				infobox_callback2(transport);
+			} });
+
+		return false;
+	} catch (e) {
+		exception_error("browseFeeds", e);
+	}
+}
+
+function updateFeedBrowser() {
+	alert("FIXME");
+}
+
+function feedBrowserSubscribe() {
+	alert("FIXME");
+
+}