anychart.onDocumentReady(function () {
var dataTable = anychart.data.table();
dataTable.addData(get_weather_data());
var mapping = dataTable.mapAs({value: 2});
var selectable = mapping.createSelectable();
selectable.select('2006-01-07');
var iterator = selectable.getIterator();
var index = iterator.getIndex();
var chart = anychart.stock();
chart.title('Index is ' + index);
chart.container('container');