Rkns.jsonIO = function(_renkan, _opts) {

    var _proj = _renkan.project;

    if (typeof _opts.http_method == "undefined") {

        _opts.http_method = 'PUT';

    }

    var _load = function() {

        Rkns.$.getJSON(_opts.url, function(_data) {

        	_data['_id'] = _data['id'];

        	_proj.set(_data, {silent: true});

            _renkan.renderer.autoScale();

            if(typeof _opts.callback !== "undefined") {

            	console.log("Corenkan json: project loaded, calling callback fro project id " + _proj.id, _data, _proj);

            	_opts.callback(_proj, _renkan);

            }

        });

    };

    _load();

};