postMessageHandler

/**
 * Handles postMessage events from child frame
 * @param {Object} event    A postMessage event object
 */
function postMessageHandler(event)
{
    alert("map"+event.data.method);
    alert("map"+event.data.params);
    alert("map"+event.origin);
    if(event.origin.indexOf("chrome://arpis_map") == 0) //from BS module
    {
        var obj = event.data;
        if(obj.method == "beforeAdvance" && obj.result == true)
        {
            //move advance code here
            alert("map"+'should do advance');
        }
    }
}