disneyworld passes - best options

Hi Guys

My mother in law is taking my step son to disneyworld for a week in June. They have decided they want to go to the following four parks;

Magic Kingdom
Epcot
Animal Kingdom
Universal Studios

Is there a pass that encompasses all four parks? I realise the first three are part of disneyworld and the last one is universal but i wondered if there was such a thing as a combined pass.
If not, is there a 3 day pass for the first three and then a 1 day for universal that they can buy in advance to save money?

I have trawled the internet but not found exactly what they need, any help you could give would be great

Many thanks

Holly

I believe Universal is a separate company, not connected to Disney, inc. You should be able to easily find passes covering multiple parks within the Disney resort (i.e., all but Universal).

In California they have a combined pass for Disneyland and Universal Studios (as well as the San Diego Zoo), I glanced at the Universal Studios Orlando Web site but didn't see a similar offer.

There isn't a combined pass for the Disney parks and Universal Studios, although you can buy an all-Disney pass that'll cover the Magic Kingdom, Epcot, Animal Kingdom and Downtown Disney/Pleasure Island area, then just buy a day pass for Universal. I believe the Disney pass is called a "hopper."