Joro the Rabbit

/* Joro is a rabbit. But he is no ordinary rabbit – he just loves to jump around. But jumping around without any precalculated direction is too ordinary, so he likes jumping in just a given direction and to make it more fun, the jumping is done in a circle. By given terrain, help Joro find longest fun and not ordinary route of jumps.
You are given the terrain as sequence of numbers. The terrain should form a circle, so the last number is before the first, and the first is after the last.

Joro can enter the terrain from every position, jump only on numbers larger than the one he is on, only in direction left-to-right and with the same step. Joro’s jumping steps range from 1 to the size of the terrain. Joro cannot jump on position that he already visited. */

function Solve(args) {

        var circle = args[0].split(", ");
        for (key in circle) {
            circle[key] = parseInt(circle[key]);
        }
        var length = circle.length;
        var score = 0;
        var bestScore = 0;
        var currentPosition = 0;
        var nextPosition = 0;
        for (var step = 1; step <= length; step++) {

            for (var startPos = 0; startPos < length; startPos++) {

                var visited = {};
                score = 0;
                nextPosition = startPos;
                do {
                    //current position
                    if (visited[nextPosition] == undefined) {
                        currentPosition = nextPosition;
                        visited[currentPosition] = true;
                        score++;
                    } else {
                        break;
                    }
                    //next position
                    if (currentPosition + step >= length) {
                        nextPosition = currentPosition + step - length;
                    } else {
                        nextPosition = currentPosition + step;
                    }

                } while (circle[currentPosition] < circle[nextPosition])
                //score
                if (score > bestScore) {
                    bestScore = score;
                }
            }
        }
        return bestScore;
    }