[рони]

Trippal,

var options = {
        service:"Open Street Map",
        drawStyleOptions : {
            color: "blue",
            weight: 1,
            opacity: 0.65,
        },
        osmSearchOptions:{
            name: "Oper Street Map",
            url: "http://nominatim.openstreetmap.org/search.php?",
            urlOptions:{
                q: "",
                format:"json",
                limit:10
            }
        },
        yandexSearchOptions:{
            name: "Yandex",
            url: "https://geocode-maps.yandex.ru/1.x/?",
            urlOptions:{
                geocode:"",
                format:"json"
            }
        },
        googleSearchOptions:{
            name: "Google",
            url: "https://maps.googleapis.com/maps/api/geocode/json?",
            urlOptions:{
                address: "",
                limit:10
            }
        }
    };

function fn(obj, value)
{
  var elem = null;
  Object.keys(obj).forEach(function (key) {
	if(typeof obj[key] == "object") {var a = fn(obj[key], value); a && (elem = a)}
    else if (obj[key] == value) elem = obj;
});
return elem
}
var a = fn(options,"Oper Street Map")
alert(JSON.stringify(a));
a = fn(options,"Google")
alert(JSON.stringify(a));