limit number of loaded headlines

backend.php

@@ -249,6 +249,7 @@
 		$subop = $_GET["subop"];
 		$view_mode = $_GET["view"];
 		$addheader = $_GET["addheader"];
+		$limit = $_GET["limit"];
 
 		if (!$skip) $skip = 0;
 
@@ -338,6 +339,10 @@
 
 		if (!$addheader) {
 			$limit_query_part = "LIMIT ".HEADLINES_PER_PAGE." OFFSET $skip";
+		} else {			
+			if ($limit != "All") {
+				$limit_query_part = "LIMIT " . $limit;
+			}
 		}
 
 		$result = pg_query("SELECT 

tt-rss.js

@@ -229,6 +229,16 @@ function viewfeed(feed, skip, subop) {
 		view_mode = "All Posts";
 	}
 
+	var limitbox = document.getElementById("limitbox");
+
+	var limit;
+
+	if (limitbox) {
+		limit = limitbox.value;
+	} else {
+		limit = "All";
+	}
+
 	if (skip < 0 || skip > total_feed_entries) {
 		return;
 	}
@@ -260,7 +270,7 @@ function viewfeed(feed, skip, subop) {
 
 	var query = "backend.php?op=viewfeed&feed=" + param_escape(feed) +
 		"&skip=" + param_escape(skip) + "&subop=" + param_escape(subop) +
-		"&view=" + param_escape(view_mode);
+		"&view=" + param_escape(view_mode) + "&limit=" + limit;
 
 	if (search_query != "") {
 		query = query + "&search=" + param_escape(search_query);

tt-rss.php

@@ -59,6 +59,15 @@
 			<option>Starred</option>
 		</select>
 
+		&nbsp;Limit:
+
+		<select id="limitbox" onchange="javascript:viewCurrentFeed(0, '')">
+			<option>15</option>
+			<option>30</option>
+			<option>60</option>
+			<option>All</option>
+		</select>
+
 		&nbsp;Feed: <a class="button" 
 			href="javascript:viewCurrentFeed(0, 'ForceUpdate')">Update</a>