seconds to time, including days and weeks , only show biggest part

function time(seconds) {
  var a = Math.floor(seconds / 60 / 60 / 24 / 7);
  var b = Math.floor(seconds / 60 / 60 / 24) % 7;
  var c = Math.floor(seconds / 60 / 60) % 24;
  var d = Math.floor(seconds / 60) % 60;
  var e = seconds % 60;

  var results = [];

  if (a > 0) {
    results.push(Math.floor(seconds / 60 / 60 / 24 / 7) + "w");
  }
  if (b > 0) {
    results.push(Math.floor(seconds / 60 / 60 / 24) % 7 + "d");
  }
  if (c > 0) {
    results.push(Math.floor(seconds / 60 / 60) % 24 + "h");
  }
  if (d > 0) {
    results.push(Math.floor(seconds / 60) % 60 + "m");
  }
  if (e > 0) {
    results.push(seconds %