you refer this function ...
function mapload()
{
var APIKEY = '63ea548e228e44efa4cbe2cc1d82b62d';
var map = new CM.Map('innerContainer', new CM.Tiles.CloudMade.Web({key: APIKEY}));
screenSize();
window.onresize = function(event) {
screenSize();
var resize = new CM.Size(document.getElementById('innerContainer').style.width,document.getElementById('innerContainer').style.height);
map.checkResize();
map.setCenter(new CM.LatLng(11.590423, 77.817961), 15);
}
map.setCenter(new CM.LatLng(11.590423, 77.817961), 15);
var directions = new CM.Directions(map, 'panel', '63ea548e228e44efa4cbe2cc1d82b62d');
var waypoints = [new CM.LatLng(11.590423, 77.817961), new CM.LatLng(11.570621,78.745298)];
directions.loadFromWaypoints(waypoints);
var topRight = new CM.ControlPosition(CM.TOP_RIGHT, new CM.Size(50, 20));
map.addControl(new CM.SmallMapControl(), topRight);
map.addControl(new CM.LargeMapControl());
map.addControl(new CM.ScaleControl());
map.addControl(new CM.OverviewMapControl());
}