sample

//when the dom is ready...
window.addEvent('domready', function() {
 //time to implement basic show / hide
 Element.implement({
  //implement show
  show: function() {
   this.setStyle('display','');
  },
  //implement hide
  hide: function() {
   this.setStyle('display','none');
  }
 });
});

//when the dom is ready...
window.addEvent('domready', function() {
//time to implement basic show / hide
Element.implement({
//implement show
show: function() {
this.setStyle('display','');
},
//implement hide
hide: function() {
this.setStyle('display','none');
}
});
});