Toggle div
HTML
<a class="reversible" href="#arbitrarydivId1">
Click to show/hide 1
</a>
<a class="reversible" href="#arbitrarydivId2">
Click to show/hide 2
</a>
<hr/>
<div id="arbitrarydivId1">Here is div 1</div>
<div id="arbitrarydivId2">Here is div 2</div>
JavaScript
$(function() {
$(".reversible").on("click",function(e) {
e.preventDefault();
$(this.hash).toggle();
});
});