$.getJSON('bt.json', function (data) {
var items = [];
$.each(data, function (val) {
$.each(val, function (key, val) {
items.push('<option id="' + val + '" value="'+val+'">' + key + '</option>');
});
});
$('<select/>', {
'class': 'my-new-list',
html: items.join("")
}).appendTo('.model');