JavaScript simply even padding

padEven.js

// JavaScript padEven
// (c) 2011 [neocotic](http://github.com/neocotic)
// Released under the MIT License
// http://en.wikipedia.org/wiki/MIT_License
function padEven(str, delim, maxLineLen) {
  delim      = delim || ',';
  maxLineLen = maxLineLen || 80;
  str        = str || '';
  var
    arr        = [],
    i,
    len,
    limit      = 0,
    maxLen     = 0,
    padStr     = ' ',
    pads,
    strs       = str.split(delim);
  for (i = 0; i < strs.length; i++) {
    strs[i] = strs[i].trim();
    len = strs[i].length;
    if (len > maxLen) maxLen = len;
  }
  limit = parseInt(maxLineLen / (maxLen + delim.length + padStr.length), 10);
  for (i = 0; i < strs.length; i++) {
    strs[i] += delim;
    pads = maxLen - strs[i].length + delim.length;
    if (pads > 0) for (j = 0; j < pads; j++) strs[i] += padStr;
  }
  while (strs.length > 0) {
    arr.push(strs.splice(0, limit).join(padStr).trim());
  }
  str = arr.join('\n');
  return str.substring(0, str.length - 1);
}