Student wireless access outside hours/timed access/vlans
I have been tasked to setup wireless access for the students so that after school hours they can use their phones/laptops to access the wireless network and gain access to the internet. I am completely new to vlans and have no idea what to do. I operate a meru wireless network with a procurve 5406 backbone. I dont want them to have any access to the main network whatsoever, just simply as a passthrough to the internet. The wireless access points are spread throughout the building on different switches which is where i get a bit concerned because last time i tried messing around with vlans i completely ballsed the switch...
My main questions are as follows.
Can this be setup through the meru controller, which i believe can set up vlans, and avoid making config changes to the switches?
Is it possible to set access up for certain times of the day?
Is there a better way to do this?
All advice is appreciated.