How to get data for a lookup field using jquery?

Hi Friends,

I’m using a jquery and trying to get the data for Firstname and OwnerId fields.

I can easily access firsename using -

var firsename = data.d.results[0].fname;

But I don't know what the syntax is that enables me to get the ID and name of Ownerid field.

Can you please help me?

Thanks.

-- NMathur