use scrollToItem instead of own function

rename isanswerto and "Is answer to" to isreplyto and "is reply to"

src/Object/Post.php

@@ -498,7 +498,7 @@ class Post
 
 		$tmp_item = [
 			'parentguid'      => $parent_guid,
-			'isanswerto'      => DI::l10n()->t('is answer to %s', $parent_username),
+			'isreplyto'      => DI::l10n()->t('is reply to %s', $parent_username),
 			'template'        => $this->getTemplate(),
 			'type'            => implode('', array_slice(explode('/', $item['verb']), -1)),
 			'comment_firstcollapsed' => false,

view/theme/frio/js/theme.js

@@ -184,7 +184,6 @@ $(document).ready(function () {
 		if (typeof searchValue !== "undefined") {
 			$("#nav-search-input-field").val(searchValue);
 		}
-
 	}
 
 	// move the "Save the search" button to the second navbar
@@ -942,13 +941,4 @@ function toggleDropdownText(elm) {
 function hasClass(elem, cls) {
 	return (" " + elem.className + " ").indexOf(" " + cls + " ") > -1;
 }
-
-// Go to parent for "is answer to <user>" link in comments below username
-function goToParentItem(plink, pguid) {
-	history.pushState({},"",plink);
-	var loc = plink.split("/");
-	loc.pop();
-	loc.push(pguid);
-	location.href = loc.join("/");
-}
 // @license-end

view/theme/frio/templates/wall_thread.tpl

@@ -59,8 +59,8 @@ as the value of $top_child_total (this is done at the end of this file)
 <span class="uriid" style="display: none;">{{$item.uriid}}</span>
 {{/if}}
 	<div class="media {{$item.shiny}}">
-	{{if !$item.parentguid==""}}
-		<a id="btn-{{$item.id}}" class="time" href="javascript:;" onclick="goToParentItem('{{$item.plink.orig}}', '{{$item.parentguid}}');">{{$item.isanswerto}}</a>
+	{{if $item.parentguid}}
+		<a id="btn-{{$item.id}}" class="time" href="javascript:;" onclick="scrollToItem('item-' + '{{$item.parentguid}}');">{{$item.isreplyto}}</a>
 		{{if $item.reshared}}<span class="hidden-xs">&#x2022;</span>{{/if}}
 		<br class="visible-xs">
 	{{/if}}