click function in prototypejs

Question

How can I write the following jquery in prototypejs?

<a class="button view" style="cursor:pointer" id="addComment"></a>

$(function() {
 $("#addComment").click(function(){

         alert("hello world");
     });
});

Answer 1

Working demo

Event.observe('addComment', 'click', function(event) {
    alert('u clicked on click here');
});​