diff --git a/code/CMSBatchAction.php b/code/CMSBatchAction.php
index e44e0147..d060b61a 100644
--- a/code/CMSBatchAction.php
+++ b/code/CMSBatchAction.php
@@ -138,7 +138,7 @@ class CMSBatchAction_Delete extends CMSBatchAction {
 }
 
 /**
- * Delete items batch action.
+ * Unpublish (delete from live site) items batch action.
  * 
  * @package cms
  * @subpackage batchaction
diff --git a/code/LeftAndMain.php b/code/LeftAndMain.php
index 9b5d69cd..903e3d6c 100644
--- a/code/LeftAndMain.php
+++ b/code/LeftAndMain.php
@@ -32,8 +32,6 @@ class LeftAndMain extends Controller {
 
 	static $tree_class = null;
 	
-	static $edit_timeout = 180;
-	
 	static $ForceReload;
 
 	static $allowed_actions = array(
@@ -51,7 +49,6 @@ class LeftAndMain extends Controller {
 		'Member_ProfileForm',
 		'EditorToolbar',
 		'EditForm',
-		'pageStatus',
 	);
 	
 	/**
@@ -719,9 +716,6 @@ JS;
 				FormResponse::add("\$('Form_EditForm_StageURLSegment').value = \"{$record->URLSegment}\";");
 			}
 
-			$newVersion = ((int)$record->Version) + 1;
-			FormResponse::add("if(\$('Form_EditForm_Version')) \$('Form_EditForm_Version').value = {$newVersion};");
-			
 			// If the 'Save & Publish' button was clicked, also publish the page
 			if (isset($urlParams['publish']) && $urlParams['publish'] == 1) {
 				$this->extend('onAfterSave', $record);
@@ -751,7 +745,7 @@ JS;
 				$result .= $this->getActionUpdateJS($record);
 				FormResponse::status_message($message, "good");
 				FormResponse::update_status($record->Status);
-				
+
 				$this->extend('onAfterSave', $record);
 				
 				return FormResponse::respond();
@@ -1062,44 +1056,6 @@ JS;
 	 * when multiple users are editing a single page. It echoes a json
 	 * encoded string to the UA.
 	 */
-	public function pageStatus() {
-		// If no ID is set, we're merely keeping the session alive
-		if (!isset($_REQUEST['ID'])) return 1;
-		
-		$page = $this->getRecord($_REQUEST['ID']);
-		if (!$page) {
-			// Page has not been found
-			$return = array('status' => 'not_found');
-		} elseif ($page->getIsDeletedFromStage()) {
-			// Page has been deleted from stage
-			$return = array('status' => 'deleted');
-		} else {
-			// Mark me as editing if I'm not already
-			$page->UsersCurrentlyEditing()->add(Member::currentUser());
-			DB::query("UPDATE SiteTree_UsersCurrentlyEditing SET LastPing = '".date('Y-m-d H:i:s')."'
-				WHERE MemberID = ".Member::currentUserID()." AND SiteTreeID = {$page->ID}");
-			
-			// Page exists, who else is editing it?
-			$names = array();
-			foreach($page->UsersCurrentlyEditing() as $user) {
-				if ($user->ID == Member::currentUserId()) continue;
-				$names[] = trim($user->FirstName . ' ' . $user->Surname);
-			}
-			$return = array('status' => 'editing', 'names' => $names);
-			
-			// Has it been published since the CMS first loaded it?
-			$usersCurrentVersion = isset($_REQUEST['Version']) ? $_REQUEST['Version'] : $page->Version;
-			if ($usersCurrentVersion < $page->Version) {
-				$return = array('status' => 'not_current_version');
-			}
-		}
-		
-		// Delete pings older than 3 minutes from the cache...
-		DB::query("DELETE FROM SiteTree_UsersCurrentlyEditing WHERE LastPing < '".date('Y-m-d H:i:s', time()-self::$edit_timeout)."'");
-		
-		echo Convert::array2json($return);
-		return;
-	}
 
 	/**
 	 * Return the CMS's HTML-editor toolbar
diff --git a/javascript/LeftAndMain.js b/javascript/LeftAndMain.js
index 573faef1..5a1d2d82 100644
--- a/javascript/LeftAndMain.js
+++ b/javascript/LeftAndMain.js
@@ -1,5 +1,4 @@
 var _AJAX_LOADING = false;
-var pagePingInterval = 15;
 
 // Resize the tabs once the document is properly loaded
 // @todo most of this file needs to be tidied up using jQuery
@@ -866,67 +865,9 @@ function hideIndicator(id) {
 	Effect.Fade(id, {duration: 0.3});
 }
 
-var CurrentPage = {
-           id: function() { if($('Form_EditForm_ID')) return $('Form_EditForm_ID').value; },
-      version: function() { if($('Form_EditForm_Version')) return parseInt($('Form_EditForm_Version').value, 10); },
-   setVersion: function(version) { $('Form_EditForm_Version').value = version; },
-    isDeleted: function() { if($('SiteTree_Alert')) return $('SiteTree_Alert').getAttribute('deletedfromstage'); }
-}
-
 setInterval(function() {
-	if ($('Form_EditForm_ID') && !($('Form_EditForm_ArchiveURL'))) {
-    	new Ajax.Request("admin/pageStatus?ID="+CurrentPage.id()+'&Version='+CurrentPage.version(), {
-			onSuccess: function(t) {
-				var data = eval('('+t.responseText+')');
-				var hasAlert = false;
-				
-				switch(data.status) {
-					case 'editing':
-						$('SiteTree_Alert').style.border = '2px solid #B5D4FE';
-						$('SiteTree_Alert').style.backgroundColor = '#F8FAFC';
-						if (data.names.length) {
-							hasAlert = true;
-							$('SiteTree_Alert').innerHTML = "This page is also being edited by: "+data.names.join(', ');
-						}
-						break;
-					case 'deleted':
-						// handle deletion by another user (but not us, or if we're already looking at a deleted version)
-						if (CurrentPage.isDeleted() == 0) {
-							$('SiteTree_Alert').style.border = '2px solid #ffd324';
-							$('SiteTree_Alert').style.backgroundColor = '#fff6bf';
-							$('SiteTree_Alert').innerHTML = "This page has been deleted since you opened it.";
-							hasAlert = true;
-						}
-						break;
-					case 'not_current_version':
-						// handle another user publishing
-						$('SiteTree_Alert').style.border = '2px solid #FFD324';
-						$('SiteTree_Alert').style.backgroundColor = '#fff6bf';
-						$('SiteTree_Alert').innerHTML = "This page has been saved since you opened it. You may want to reload it, or risk overwriting changes.";
-						hasAlert = true;
-						break;
-					case 'not_found':
-						break;
-				}
-				
-				if (hasAlert) {
-					$('SiteTree_Alert').style.padding = '5px';
-					$('SiteTree_Alert').style.marginBottom = '5px';
-					$('SiteTree_Alert').style.display = 'block';
-				} else {
-					$('SiteTree_Alert').innerHTML = '';
-					$('SiteTree_Alert').style.padding = '0px';
-					$('SiteTree_Alert').style.marginBottom = '0px';
-					if ($('SiteTree_Alert').style.display != 'none') $('SiteTree_Alert').style.display = 'none';
-				}
-			}
-		});
-	} else {
-		// We're not looking at a page, so at this stage, we're just
-		// pinging to keep the session alive.
-		new Ajax.Request("admin/pageStatus");
-	}
-}, pagePingInterval*1000);
+		new Ajax.Request("Security/ping");
+}, 180*1000);
 
 /**
  * Find and enable TinyMCE on all htmleditor fields