* use es5 (?) default parameter values for some functions

* when moving to next article, try to show hsp if its next

js/App.js

@@ -98,7 +98,16 @@ const App = {
 
 			return elem.offsetTop + elem.offsetHeight <= ctr.scrollTop + ctr.offsetHeight &&
 				elem.offsetTop >= ctr.scrollTop;
-		}
+		},
+      scrollTo: function (elem, ctr, params = {}) {
+         const force_to_top = params.force_to_top || false;
+
+         if (!elem || !ctr) return;
+
+         if (force_to_top || !App.Scrollable.fitsInContainer(elem, ctr)) {
+            ctr.scrollTop = elem.offsetTop;
+         }
+      }
    },
    dialogOf: function (elem) {
 
@@ -541,9 +550,7 @@ const App = {
 		this.initSecondStage();
 	},
 	Error: {
-		fatal: function (error, params) {
+		fatal: function (error, params = {}) {
-			params = params || {};
-
 			if (params.code) {
 				if (params.code == 6) {
 					window.location.href = "index.php";
@@ -557,9 +564,7 @@ const App = {
 			return this.report(error,
 				Object.extend({title: __("Fatal error")}, params));
 		},
-		report: function(error, params) {
+		report: function(error, params = {}) {
-			params = params || {};
-
 			if (!error) return;
 
 			console.error("[Error.report]", error, params);

js/Article.js

@@ -383,9 +383,7 @@ const Article = {
 		dialog.show();
 
 	},
-	cdmMoveToId: function (id, params) {
+	cdmMoveToId: function (id, params = {}) {
-		params = params || {};
-
 		const force_to_top = params.force_to_top || false;
 
 		const ctr = $("headlines-frame");

js/Headlines.js

@@ -814,9 +814,7 @@ const Headlines = {
 
 		Feeds.reloadCurrent();
 	},
-	selectionToggleUnread: function (params) {
+	selectionToggleUnread: function (params = {}) {
-		params = params || {};
-
 		const cmode = params.cmode != undefined ? params.cmode : 2;
 		const no_error = params.no_error || false;
 		const ids = params.ids || Headlines.getSelected();
@@ -882,9 +880,7 @@ const Headlines = {
 		if (row)
 			row.toggleClassName("published");
 	},
-	move: function (mode, params) {
+	move: function (mode, params = {}) {
-		params = params || {};
-
 		const no_expand = params.no_expand || false;
 		const force_previous = params.force_previous || this.default_force_previous;
 		const force_to_top = params.force_to_top || this.default_force_to_top;
@@ -930,6 +926,17 @@ const Headlines = {
 				} else {
 					Article.view(next_id, no_expand);
 				}
+			} else if (App.isCombinedMode()) {
+				// try to show hsp if no next article exists, in case there's useful information like first_id_changed etc
+				const row = $("RROW-" + current_id);
+
+				if (row) {
+					const sibling = row.nextSibling;
+
+					if (sibling && Element.visible(sibling) && sibling.id == "headlines-spacer") {
+						App.Scrollable.scrollTo(sibling, $("headlines-frame"));
+					}
+				}
 			}
 		} else if (mode === "prev") {
 			if (prev_id || current_id) {