Simple button/menu
jQuery
HTML
<a href="#" data-text="Button example 01">Button</a>
<a href="#" data-text="Button example 02">Button</a>
<a href="#" data-text="Button example 03">Button</a>
<div class="bubble"></div>
CSS
.bubble {display: none}
JavaScript
$('a').click(function(){
$('.bubble').html('').hide();
$('.bubble').html($(this).data('text')).show();
});