JSON making specific events load as readonly on scheduler

Hello,
I’m trying to load a json file with my events. I’m using the readonly extension and i can’t seem to get specific events to load up readonly. I’ve tried various versions of 1,true,“True” etc, but no luck. Does anyone have this working for them?
(also is there some list around of event properties i can set and how to set them from json?) what’s a type?

thanks for your help this product looks great so far.
-k

here is my init
scheduler.config.xml_date="%Y-%m-%d %H:%i";
//scheduler.config.readonly=true; //this works for making the whold doc readonly
scheduler.init(‘scheduler_here’,null,“week”);
scheduler.load(“http://mysite.com/schedule”,‘json’);

and here is my json (header is application/json)
[
{“start_date”:“2012-04-22 10:00:00”,
“end_date”:“2012-04-22 11:00:00”,
“color”:"#000099",“text”:“some text”,
“readonly”:true}
,
{“start_date”:“2012-04-21 10:15:00”,"
end_date":“2012-04-21 11:15:00”,
“color”:"#000099",
“text”:“a lesson2”,
“readonly”:true},
{
“start_date”:“2012-04-21 10:00:00”,
“end_date”:“2012-04-21 18:15:00”,
“color”:"#006633",
“text”:“free”,
“readonly”:false}]

readonly extension alters only lightbox functionality. If you need to block other operations as well, you can use code like

scheduler.attachEvent("onClick", function(id){ return !scheduler.getEvent(id).readonly; }); scheduler.attachEvent("onBeforeDrag", function(id){ return !scheduler.getEvent(id).readonly; });