Options collection question

[TomWA007]

I want to pass in an option that is a collection of name/value
pairs.Then I want to loop through that and retrieve both name and
value.

example.

FlashVars: {"movieName":"somemovie.flv","anotherVar":"avalue"}

Later in the class I want to loop through this.options.FlashVars for
each name and value.

My initial thought was something like
this.options.FlashVars.each(function(a)

Thanks for any help.