Frameready - How do you get the data in the target frame

Frameready - How do you get the data in the target frame

I want to use http://ideamill.synaptrixgroup.com/?page_id=18 plugin to pass data to an iframe. The example on the site is as below.


    $.frameReady(function(){  $("<div>I am a div element.  "+frData.myVariable+"     </div>").prependTo("body");}
    , "top.mainFrame"
    , { data:{myVariable: "I am data passed to this frame"}
    , load:[
    {type:"script", id:"_fr", src:"/js/myscript.js", test:"myFunction"},
    {type:"stylesheet", id:"_ss", src:"mycss.css"}
    ] }
    );


Im stuggling to work out how to get the data from myVariable into the target frame. The notes say it is an object available as frData. Anyone able to help a n00b out? Im am assuming I need to run a function on the iframe page