var VEGA = window.VEGA || {};
VEGA.systemRoot = "";
//VEGA.version = 0.1;
VEGA.namespace = function(ns) {
    if (!ns || !ns.length) {
        return null;
    }
    var levels = ns.split(".");
    var nsobj = VEGA;
    for (var i=(levels[0] == "VEGA") ? 1 : 0; i < levels.length; ++i) {
        nsobj[levels[i]] = nsobj[levels[i]] || {};
        nsobj = nsobj[levels[i]];
    }
    return nsobj;
};
VEGA.namespace("widget");

String.prototype.trim = function(){
    return this.replace(/(^\s*)|(\s*$)/g, "");
}