gistfile1.txt

fib = function(numMax){
    var counter = 0,
        i = 1,
        j = 1;
  
    for (var k = 0; k < numMax; k++) {
        if ((Math.max(i,j) % 2) !==0)
          counter++;
        x = i + j;
        i = j;
        j = x;
    }
    return counter;
};

console.log(fib(20));