Made template parser remember last initted page_id and namespace to avoid double init; made additional_headers reassign only do so if $template->additional_headers is empty (it's being blanked somehow, need to come up with a backtrace sometime)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>{PAGE_NAME} • {SITE_NAME}</title>
<meta http-equiv="Content-type" content="text/html; charset=utf-8" />
<link rel="stylesheet" type="text/css" href="{SCRIPTPATH}/includes/clientside/css/enano-shared.css" />
<link id="mdgCss" rel="stylesheet" type="text/css" href="{SCRIPTPATH}/themes/{THEME_ID}/css/{STYLE_ID}.css" />
<!--[if IE]>
<link id="mdgCss" rel="stylesheet" type="text/css" href="{SCRIPTPATH}/themes/{THEME_ID}/css-ie/iefixes.css" />
<![endif]-->
{JS_DYNAMIC_VARS}
<!-- jsres.php is a wrapper script that compresses and caches single JS files to minimize requests -->
<script type="text/javascript" src="{SCRIPTPATH}/includes/clientside/jsres.php"></script>
<script type="text/javascript" src="{SCRIPTPATH}/themes/admin/js/menu.js"></script>
{ADDITIONAL_HEADERS}
</head>
<body>
<div id="header">
<div class="sitename">{SITE_NAME}</div>
<!-- div class="menulink"><a href="#" onclick="adminOpenMenu('sidebar', this); return false;">expand menu</a></div -->
[ <a href="{SCRIPTPATH}/{ADMIN_SID_QUES}">{lang:etc_btn_main_page} »</a> ]
</div>
<div class="menu_nojs" id="pagebar_main">
<div class="label">{lang:onpage_lbl_pagetools}</div>
{TOOLBAR}
<ul>
{TOOLBAR_EXTRAS}
</ul>
<span class="menuclear"> </span>
</div>
<table border="0" cellspacing="0" cellpadding="0" id="sidebarholder">
<tr>
<td valign="top">
<table border="0" cellspacing="0" cellpadding="0" class="wrapper">
<tr>
<td class="top-left"></td><td class="top"> </td><td class="top-right"></td>
</tr>
<tr>
<td class="left"></td>
<td class="main">
<div style="float: right;">
<img alt=" " src="{SCRIPTPATH}/images/spacer.gif" id="ajaxloadicon" />
</div>
<h2 class="pagename">{PAGE_NAME}</h2>
<div id="ajaxEditContainer">