diff --git a/phpBB/styles/prosilver/template/overall_header.html b/phpBB/styles/prosilver/template/overall_header.html
index c1cdc0c223..0c15ec80c7 100644
--- a/phpBB/styles/prosilver/template/overall_header.html
+++ b/phpBB/styles/prosilver/template/overall_header.html
@@ -30,33 +30,12 @@
 	var on_page = '{ON_PAGE}';
 	var per_page = '{PER_PAGE}';
 	var base_url = '{A_BASE_URL}';
-	var onload_functions = new Array();
-	var onunload_functions = new Array();
 
 	<!-- IF S_USER_PM_POPUP and S_NEW_PM -->
 		var url = '{UA_POPUP_PM}';
 		window.open(url.replace(/&amp;/g, '&'), '_phpbbprivmsg', 'height=225,resizable=yes,scrollbars=yes, width=400');
 	<!-- ENDIF -->
 
-	/**
-	* New function for handling multiple calls to window.onload and window.unload by pentapenguin
-	*/
-	window.onload = function()
-	{
-		for (var i = 0; i < onload_functions.length; i++)
-		{
-			onload_functions[i]();
-		}
-	};
-
-	window.onunload = function()
-	{
-		for (var i = 0; i < onunload_functions.length; i++)
-		{
-			onunload_functions[i]();
-		}
-	};
-
 // ]]>
 </script>
 
diff --git a/phpBB/styles/prosilver/template/simple_header.html b/phpBB/styles/prosilver/template/simple_header.html
index 5bdc539f40..9a8c77135e 100644
--- a/phpBB/styles/prosilver/template/simple_header.html
+++ b/phpBB/styles/prosilver/template/simple_header.html
@@ -14,27 +14,6 @@
 	var on_page = '{ON_PAGE}';
 	var per_page = '{PER_PAGE}';
 	var base_url = '{A_BASE_URL}';
-	var onload_functions = new Array();
-	var onunload_functions = new Array();
-
-	/**
-	* New function for handling multiple calls to window.onload and window.unload by pentapenguin
-	*/
-	window.onload = function()
-	{
-		for (var i = 0; i < onload_functions.length; i++)
-		{
-			onload_functions[i]();
-		}
-	}
-
-	window.onunload = function()
-	{
-		for (var i = 0; i < onunload_functions.length; i++)
-		{
-			onunload_functions[i]();
-		}
-	}
 
 // ]]>
 </script>