Slugify

slugify.js

var slugify function(str) {
  var from  = "ąàáäâãåæćęèéëêìíïîłńòóöôõøśùúüûñçżź",
      to    = "aaaaaaaaceeeeeiiiilnoooooosuuuunczz",
      regex = new RegExp('[' + from.replace(/([.*+?^=!:${}()|[\]\/\\])/g, '\\$1') + ']', 'g');

  if (str == null) return '';

  str = String(str).toLowerCase().replace(regex, function(c) {
    return to.charAt(from.indexOf(c)) || '-';
  });

  return str.replace(/[^\w\s-]/g, '').replace(/([A-Z])/g, '-$1').replace(/[-_\s]+/g, '-').toLowerCase();
}