add page moving shortcuts

feedlist.js

@@ -17,13 +17,21 @@ function feedlist_callback() {
 var page_offset = 0;
 
 function viewFeedGoPage(i) {
-	page_offset = page_offset + i;
-
-	if (page_offset < 0) page_offset = 0;
+	try {
+		if (!getActiveFeedId()) return;
 
-	viewfeed(getActiveFeedId(), undefined, undefined, undefined,
-		undefined, page_offset);
+		if (i != 0) {
+			page_offset = page_offset + i;
+		} else {
+			page_offset = 0;
+		}
 
+		if (page_offset < 0) page_offset = 0;
+		viewfeed(getActiveFeedId(), undefined, undefined, undefined,
+			undefined, page_offset);
+	} catch (e) {
+		exception_error(e, "viewFeedGoPage");
+	}
 }
 
 function viewfeed(feed, subop, is_cat, subop_param, skip_history, offset) {

functions.js

@@ -237,6 +237,18 @@ function hotkey_handler(e) {
 			debug_mode_enabled = !debug_mode_enabled;
 		}
 
+		if (keycode == 190 && shift_key) { // >
+			viewFeedGoPage(1);
+		}
+		
+		if (keycode == 188 && shift_key) { // <
+			viewFeedGoPage(-1);
+		}
+
+		if (keycode == 191 && shift_key) { // ?
+			viewFeedGoPage(0);
+		}
+
 		if (keycode == 69 && shift_key) {
 			return editFeedDlg(getActiveFeedId());
 		}