var arr = [1,3,2];

function bubbleSort(arr) {
  var i, j, lim;

  lim = arr.length;
  while(lim --) {
    for(i = 0, j = 1; i < lim; i ++, j ++) {
      if(arr[i] > arr[j]) {
        temp = arr[i];
        arr[i] = arr[j];
        arr[j] = temp;
      }
    }
  }
  return arr;
}

console.log(bubbleSort(arr));