public function isElementPresent($func, $arg)
{
try {
$element = call_user_func_array(array($this, $func), array($arg));
} catch (PHPUnit_Extensions_Selenium2TestCase_WebDriverException $e) {
// Element not present
return false;
} catch (InvalidArgumentException $e) {
// Element not present
return false;
}
// Element Present
return true;
}