JQuery.cookies setting a key value pair

I'm trying to use the JQuery cookies library http://code.google.com/p/cookies/ But am not able to set key value 开发者_运维百科pairs within the cookie. I can't see how in the documentation, does anyone know how?

Thanks

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Check out the JSON example in the link you referenced.

//JSON 
var jimData = {id: 1, name: 'jim'}; 
$.cookies.set( 'userdata', jimData ); //A cookie by the name 'userdata' now exists with a serialized copy of jimData 

var userData = $.cookies.get( 'userdata' ); //A variable named 'userData' now holds the unserialized object--should be identical to the variable 'jimData' 

So, userData should now have properties id with value 1 and name with value 'jim'.