Question about a clean exit from a gp script

[Patrick De Geest <patrick.degeest@skynet.be>]

Is there a neat way to leave or end a running gp script, from anywhere, 
even from
within multiple nested loops, so that I come back straight at the pari 
prompt 'gp > '?
'Quit' doesn't work for me as the whole Pari application shuts down in 
my windows system.
'end', 'stop', 'system', 'goto' or whatever seems not to be implemented.

Just an example:

uslvl=11;
if(uslvl>6, warning("\n\nUser level "uslvl" too high!\n\n"); \*return 
strategy to the pari prompt*\ )

Patrick De Geest.