Javascript demo of event delegation. http://jsfiddle.net/6w5mx/

delegDemo.js

// Get the element, add a click listener...
document.getElementById("parent-list").addEventListener("click",function(e) {
  // e.target is the clicked element!
	// If it was a list item
	if(e.target && e.target.nodeName == "LI") {
		// List item found!  Output the ID!
		alert("List item " + e.target.id.replace("post-", "") + " was clicked!");
	}
});

demo.html

<ul id="parent-list">
  <li id="post-1">Item 1</li>
	<li id="post-2">Item 2</li>
	<li id="post-3">Item 3</li>
	<li id="post-4">Item 4</li>
	<li id="post-5">Item 5</li>
	<li id="post-6">Item 6</li>
</ul>