Airport Transit Visa for Amsterdam (Netherlands)

Hi,

I have an urgent query. I have a KLM booking from UK to Oman which stops for a couple of hours in Amsterdam. Do I need an airport transit visa if I have no intention of leaving the airport terminal?

I am a Pakistani Passport holder. I have a UK work permit which is valid till 2013. In addition, I have an approved Omani visa as well on my passport. Can someone please let me know ASAP if I'll require an airport transit visa given the above details?

Thanks