Element.addMethods({
  showBlock: function(element) {
    $(element).style.display = 'block';
    return element;
  },
  realToggle: function(element) {
    if ($(element).style.display != 'none') 
       $(element).realHide();
    else
       $(element).realShow();
    return element;
  },
  realHide: function(element) {
    $(element).prevDisplay =  $(element).style.display;
    $(element).style.display = 'none';
    return element;
  },
  realShow: function(element) {
    if (!$(element).prevDisplay)
     $(element).prevDisplay = "block";
    $(element).style.display = $(element).prevDisplay;
    return element;
  }
});