Shaffle the staffs

gistfile1.js

Array.prototype.shuffle = function() {
    var i = this.length;
    while(i){
        var j = Math.floor(Math.random()*i);
        var t = this[--i];
        this[i] = this[j];
        this[j] = t;
    }
    return this;
}
arr = ['makino', 'oosugi', 'moriko', 'hosono', 'rin'];
arr.shuffle();