Writing a function returns minimum value

While reading Eloquent JavaScript, I was challenged an exercise.

Create a function which takes as many parameters as it can and returns minimum value among them. It is like writing Math.min() from scratch. Sounded easy at first..

It was a lot harder than I had thought.

My first attempt

function superMin() {
    var winner;
    var i = 0;
    var j = 1;
    if (arguments[0] < arguments[1])
        winner = arguments[0];
    else
        winner = arguments[1];

    while (i < arguments.length) {
        if (winner > arguments[j])
            winner = arguments[j];
        i++;
        j++;
    }
    return winner;
}

myMathmin(2, 3, 1, -10);
// -10

Function above looks terrible for seasoned JS dev, but it gets the job done at least..

Second attempt