sumOddFibbonacciNumbers.js

/**
 * Sum all odd Fibonacci Sequence elements less than given number 
 * Return the sum of all odd Fibonacci numbers up to and including the passed number if it is a Fibonacci number.
 */
function sumOddFibs(num) {
  var sum = 0;
  var fibs = [1, 1];
  
  while (Math.max.apply(Math, fibs) < num) {
    fibs.push(fibs[fibs.length-1]+fibs[fibs.length-2]);
  }
  
  for (var i=0; fibs[i] <= num && i < fibs.length; i++) {
    if (fibs[i] % 2) {
      sum += fibs[i];
    }
  }
  return sum;
}