3com switch 3300 and vlan acces to internet

[cacas]

muy question,

I have to install, one network in a school, and i have to install two vlan in a switch 3com 3300, all vlan need to acces at internet (adsl router efficient speedstream 5660),

I think that the router(adsl) need the protocol 802.1q, because one port of the switch are both vlan,

But I am not sure that it is necessary to have the protocol 802.1q in the router of adsl

Someone can confirm to me if it is necessary that the router of adsl has 802.1q