anychart.onDocumentReady(function () {
var dataSet = anychart.data.set(data);
mapping = dataSet.mapAs({x: 0, value: 1, fill: 2, stroke: 2});
var chart = anychart.column();
var series = chart.column(mapping);
chart.title("Data Sets: Updating");
chart.container("container");
var index = document.getElementById("indexInput").value;
var newColor = document.getElementById("colorInput").value;
mapping.set(index, "fill", newColor);
mapping.set(index, "stroke", newColor);