TinyMCE WYSIWYG editor removing/stripping lightbox effect (class)

return <<<EOD
$load
$load_init
<script type="text/javascript">
tinyMCE.init({
theme : "$theme",
language : "en",
mode : "specific_textareas",
document_base_url : "$mosConfig_live_site/",
relative_urls : $relative_urls,
remove_script_host : false,
save_callback : "TinyMCE_Save",
invalid_elements : "$invalid_elements",
theme_advanced_toolbar_location : "$toolbar",
theme_advanced_source_editor_height : "$html_height",
theme_advanced_source_editor_width : "$html_width",
directionality: "$text_direction",
force_br_newlines : "$br_newlines",
force_p_newlines : "$p_newlines",
$content_css
debug : false,
cleanup : $cleanup,
cleanup_on_startup : $cleanup_startup,
safari_warning : false,
plugins : "advlink, advimage, $plugins",
theme_advanced_buttons2_add : "$buttons2",
theme_advanced_buttons3_add : "$buttons3",
plugin_insertdate_dateFormat : "$format_date",
plugin_insertdate_timeFormat : "$format_time",
plugin_preview_width : "$preview_width",
plugin_preview_height : "$preview_height",
extended_valid_elements : "a[name|href|target|title|onclick|class], img[class|src|border=0|alt|title|hspace|vspace|width|height|align|onmouseover|onmouseout|name], $elements",
disk_cache : true,
debug : false,
fullscreen_settings : {
theme_advanced_path_location : "top"
}
});
function TinyMCE_Save(editor_id, content, node)
{
base_url = tinyMCE.settings['document_base_url'];
var vHTML = content;
if (true == true){
vHTML = tinyMCE.regexpReplace(vHTML, 'href\s*=\s*"?'+base_url+'', 'href="', 'gi');
vHTML = tinyMCE.regexpReplace(vHTML, 'src\s*=\s*"?'+base_url+'', 'src="', 'gi');
vHTML = tinyMCE.regexpReplace(vHTML, 'mce_real_src\s*=\s*"?', '', 'gi');
vHTML = tinyMCE.regexpReplace(vHTML, 'mce_real_href\s*=\s*"?', '', 'gi');
}
return vHTML;
}
</script>
EOD;
}