addAlert('External function successfully included and executed'); return $objResponse; } class myExternalClass { function myMethod() // static (can't hardwire that in because of PHP 4) { $objResponse = new xajaxResponse(); $objResponse->addAlert('External class successfully included and method executed'); return $objResponse; } } ?>

This is some content that should be ignored by an asynchronous request through xajax, but will show up if the file is otherwise included into the script.