function initOverLabels ()
{
  if (!document.getElementById) return;      

  var labels, id, field;

  labels = document.getElementsByTagName('label');
  for (var i = 0; i < labels.length; i++) {

    if (labels[i].className == 'overlabel') {

      id = labels[i].htmlFor || labels[i].getAttribute ('for');
      if (!id || !(field = document.getElementById(id))) {
        continue;
      } 

      labels[i].className = 'overlabel-apply';

      if (field.value !== '') {
        hideLabel(field.getAttribute('id'), true);
      }

      field.onfocus = function () {
        hideLabel(this.getAttribute('id'), true);
      };
      field.onblur = function () {
        if (this.value === '') {
          hideLabel(this.getAttribute('id'), false);
        }
      };

      labels[i].onclick = function () {
        var id, field;
        id = this.getAttribute('for');
        if (id && (field = document.getElementById(id))) {
          field.focus();
        }
      };

    }
  }
};

function hideLabel (field_id, hide) {
  var field_for;
  var labels = document.getElementsByTagName('label');
  for (var i = 0; i < labels.length; i++) {
    field_for = labels[i].htmlFor || labels[i]. getAttribute('for');
    if (field_for == field_id) {
      labels[i].style.textIndent = (hide) ? '-1000px' : '0px';
      return true;
    }
  }
}

window.onload = function () {
  setTimeout(initOverLabels, 50);
};