Clears a form (like reset). Be aware for input types that clear data used for the app logic, like hidden.

clear-form.js

function clearForm(myFormElement) {

  var elements = myFormElement.elements;

  myFormElement.reset();

  for(i=0; i<elements.length; i++) {

    field_type = elements[i].type.toLowerCase();

    switch(field_type) {

      case "text":
      case "password":
      case "textarea":
            case "hidden":

        elements[i].value = "";
        break;

      case "radio":
      case "checkbox":
        if (elements[i].checked) {
          elements[i].checked = false;
        }
        break;

      case "select-one":
      case "select-multi":
        elements[i].selectedIndex = -1;
        break;

      default:
        break;
    }
  }
}