how to do cascading combobox

I'm using cakephp 2.1
in my application I have 5 tables that are related: Provinces, Districts, Towns, Neighborhoods and block.
In my form AddParticipant, have five combobox, Provinces, Districts, Towns, Neighborhoods and block.
wanted when the user selects the Province, the District combobox shows up Districts Related to this Province,
District combobox shows up the locations, Location combobox shows up the Neighborhoods.

Any help please.

--
Like Us on FaceBook https://www.facebook.com/CakePHP
Find us on Twitter http://twitter.com/CakePHP
 
---
You received this message because you are subscribed to the Google Groups "CakePHP" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cake-php+unsubscribe@googlegroups.com.
To post to this group, send email to cake-php@googlegroups.com.
Visit this group at http://groups.google.com/group/cake-php?hl=en.
For more options, visit https://groups.google.com/groups/opt_out.