2637c2637,2641
< 		if (!$script) {basename(PATH_thisScript);}
---
> 		if (!$script) {
> 			$script = basename(PATH_thisScript);
> 			$mainParams.= (t3lib_div::_GET('M') ? '&M='.rawurlencode(t3lib_div::_GET('M')) : '');
> 		}
> 		
2662c2666,2669
< 		if (!$script) {basename(PATH_thisScript);}
---
> 		if (!$script) {
> 			$script = basename(PATH_thisScript);
> 			$mainParams.= (t3lib_div::_GET('M') ? '&M='.rawurlencode(t3lib_div::_GET('M')) : '');
> 		}