rotateByN()

    // rotateByN() moves a chunk of an array from the start to the end
    Array.prototype.rotateByN = function(n) {

        var arrReturn = [],
            i,
            iLimit = this.length;

        // Add everything above n
        for( i = n; i < iLimit; i++){
            arrReturn.push( this[i] );
        }

        // Add everything below n
        for( i = 0; i < n; i++){
            arrReturn.push( this[i] );
        }

        return arrReturn;
    };

    // itemByLoopedIndex() will allow an item with an index higher than number of items to be requested
    Array.prototype.itemByLoopedIndex = function(n) {

        // If they are asking for a valid index item, just return it
        if( n < this.length ){
            return this[n];
        }

        var remainder = n % this.length;
        return this[remainder];
    };