function checkFormStyles () {
  for (var i = 0; i < document.forms.length; i++) {
    for (var j = 0; j < document.forms[i].elements.length; j++) {
      if (document.forms[i].elements[j].type == 'submit') document.forms[i].elements[j].className = 'submit';
      else if (document.forms[i].elements[j].type == 'reset') document.forms[i].elements[j].className = 'reset';
      else if (document.forms[i].elements[j].type == 'button') document.forms[i].elements[j].className = 'reset';
    }
  }
}