DataGrid won't show my data

Ext.onReady(function() {

	var proxy = new Ext.data.HttpProxy( {
		url : '../connectors/testcomponent/ajax.php?action=grid'
	});
	// Define the reader 
		var reader = new Ext.data.JsonReader( {
			totalProperty: 'total',
			root: 'results',
			id: 'id'
		});
		// Build a Store 
		var store = new Ext.data.Store( {
			proxy : proxy,
			reader : reader
		});
		// Load 
		store.load();

		// create the grid
		var grid = new Ext.grid.GridPanel( {
			store : store,
			columns : [ {
				header : "Name",
				width : 120,
				dataIndex : 'name',
				sortable : true
			}, {
				header : "Occupation",
				width : 120,
				dataIndex : 'occupation',
				sortable : true
			}],
			renderTo : 'mygrid',
			width : 540,
			height : 200
		});

});

{ 'total': 2, 'results': [ { 'id': 1, 'name': 'Test', occupation: 'test 2' }, { 'id': 2, 'name': 'test 4', occupation: 'test 5' } ] }

var Employee = Ext.data.Record.create([
		    {name: 'name'},                
		    {name: 'address'}  
]);

var reader = new Ext.data.JsonReader({
			totalProperty: 'total',
			root: 'results',
			id: 'id'	
		}, Employee);