var countOnetoTen = function() {

   console.log("countOnetoTen started");

    for (counter = 1; counter <= 10; counter += 1) {

        console.log(counter);

    }

};

​

countOnetoTen();  //=> 1 2 3 4 5 6 7 8 9 10

​

var countEleventtoTwenty = function() {

   console.log("countEleventtoTwenty started");

    for (counter = 1; counter <= 10; counter += 1) {

        console.log(counter+10);

    }

};

​

countEleventtoTwenty(); //=> 11 12 13 14 15 16 17 18 19 20