iframify main interface, numerous javascript cleanups

functions.js

@@ -54,6 +54,8 @@ function notify(msg) {
 
 	var n = document.getElementById("notify");
 
+	if (!n) return;
+
 	n.innerHTML = msg;
 
 	if (msg.length == 0) {
@@ -65,8 +67,7 @@ function notify(msg) {
 }
 
 function printLockingError() {
-	notify("Please wait until operation finishes");
-}
+	notify("Please wait until operation finishes");}
 
 var seq = "";
 
@@ -102,5 +103,76 @@ function hotkey_handler(e) {
 
 }
 
+function cleanSelected(element) {
+	var content = document.getElementById(element);
+
+	var rows = new Array();
+
+	for (i = 0; i < content.rows.length; i++) {
+		content.rows[i].className = content.rows[i].className.replace("Selected", "");
+	}
+
+}
+
+function getVisibleUnreadHeadlines() {
+	var content = document.getElementById("headlinesList");
+
+	var rows = new Array();
+
+	for (i = 0; i < content.rows.length; i++) {
+		var row_id = content.rows[i].id.replace("RROW-", "");
+		if (row_id.length > 0 && content.rows[i].className.match("Unread")) {
+				rows.push(row_id);	
+		}
+	}
+	return rows;
+}
+
+function getVisibleHeadlineIds() {
+
+	var content = document.getElementById("headlinesList");
+
+	var rows = new Array();
+
+	for (i = 0; i < content.rows.length; i++) {
+		var row_id = content.rows[i].id.replace("RROW-", "");
+		if (row_id.length > 0) {
+				rows.push(row_id);	
+		}
+	}
+	return rows;
+}
+
+function getFirstVisibleHeadlineId() {
+	var rows = getVisibleHeadlineIds();
+	return rows[0];
+}
+
+function getLastVisibleHeadlineId() {
+	var rows = getVisibleHeadlineIds();
+	return rows[rows.length-1];
+}
+
+function markHeadline(id) {
+	var row = document.getElementById("RROW-" + id);
+	if (row) {
+		row.className = row.className + "Selected";
+	}
+}
+
+function getFeedIds() {
+	var content = document.getElementById("feedsList");
+
+	var rows = new Array();
+
+	for (i = 0; i < content.rows.length; i++) {
+		var id = content.rows[i].id.replace("FEEDR-", "");
+		if (id.length > 0) {
+			rows.push(id);
+		}
+	}
+
+	return rows;
+}