Nothing happens when i select a feed.. can you help me figure out what's wrong/missing?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">
<html xmlns="" xml:lang="en" lang="en">
	<meta http-equiv="content-type" content="text/html; charset=utf-8" />
	<title>RSS Reader</title>
	<script type="text/javascript" src="jquery-1.2.6.min.js" charset="utf-8">
          function get_rss_feed() {
	       $.get(''+$('#diffFeeds').val(), function(d) {
		   $(d).find('item').each(function() {
			var $item = $(this);
			var title = $item.find('title').text();
			var link = $item.find('link').text();
			var description = $item.find('description').text();
			var pubDate = $item.find('pubDate').text();
			var html = "<div class=\"entry\"><h2 class=\"postTitle\">" + title + "<\/h2>";
			html += "<em class=\"date\">" + pubDate + "</em>";
			html += "<p class=\"description\">" + description + "</p>";
			html += "<a href=\"" + link + "\" target=\"_blank\">Read More >><\/a><\/div>";

<div id="container">
<div id="ui">
<h1>Feed Reader</h1>
<form id="selectParser" action="">
<label>Select a feed:</label>
<select id="diffFeeds">
	<option value="">Select</option>
	<option value="">Aral Balkan</option>
	<option value="">Peter Elst</option>
	<option value="">Grant Skinner</option>
	<option value="">Andre Michelle</option>
	<option value="">Flash Magazine</option>
	<option value="">Marco Casario</option>
	<option value="">Sephiroth</option>
	<option value="">Quasimondo</option>
	<option value="">Seb Lee-Delisle</option>
	<option value="">OS Flash</option>
<div id="feedContent">&nbsp;</div>

The file where

$.get(''+$('#diffFeeds').val(), function(d) {

is taken is this..

	// PHP Proxy
	// Loads a XML from any location. Used with Flash/Flex apps to bypass security restrictions
	// Author: Paulo Fierro
	// January 29, 2006
	// usage: proxy.php?url=
	$session = curl_init($_GET['url']); 	               // Open the Curl session
	curl_setopt($session, CURLOPT_HEADER, false); 	       // Don't return HTTP headers
	curl_setopt($session, CURLOPT_RETURNTRANSFER, true);   // Do return the contents of the call
	$xml = curl_exec($session); 	                       // Make the call
	header("Content-Type: text/xml"); 	               // Set the content type appropriately
	echo $xml; 	      // Spit out the xml
	curl_close($session); // And close the session

i'm new with this..please bare with me..thanks!^^