// Scroll method for the Zoom trackbar control.
private void zoomTrackBar_Scroll(object sender, EventArgs e)
{
    webBrowserMap.Document.InvokeScript("SetMapZoomLevel", new object[] { zoomTrackBar.Value });
}

// Adding the CheckedChanged Event method.
private void rdRoad_CheckedChanged(object sender, EventArgs e)
{
    webBrowserMap.Document.InvokeScript("SetMapStyle", new object[] { "r" });
}

// Adding the CheckedChanged Event method.
private void rdAerial_CheckedChanged(object sender, EventArgs e)
{
    webBrowserMap.Document.InvokeScript("SetMapStyle", new object[] { "a" });
}

// Adding the CheckedChanged Event method.
private void rdHybrid_CheckedChanged(object sender, EventArgs e)
{
    webBrowserMap.Document.InvokeScript("SetMapStyle", new object[] { "h" });
}

function SetMapZoomLevel(zoomLevel)
{
    map.SetZoomLevel(zoomLevel);
}

function SetMapStyle(mapStyle)
{
    map.SetMapStyle(mapStyle);
}