// JavaScript Document
var getLatestTweet = function(twitter_user, number) {

	// Declare variables to hold twitter API url and user name
	var twitter_api_url = 'http://search.twitter.com/search.json';
	

	// Enable caching
	$.ajaxSetup({ cache: true });

	// Send JSON request
	// The returned JSON object will have a property called "results" where we find
	// a list of the tweets matching our request query
	$.getJSON(
		twitter_api_url + '?callback=?&rpp='+number+'&q=from:' + twitter_user,
		function(data) {
			$.each(data.results, function(i, tweet) {
				// Uncomment line below to show tweet data in Fire Bug console
				// Very helpful to find out what is available in the tweet objects
				//console.log(tweet);

				// Before we continue we check that we got data
				if(tweet.text !== undefined) {
					// Calculate how many hours ago was the tweet posted
					var date_tweet = new Date(tweet.created_at);
					var date_now   = new Date();
					var date_diff  = date_now - date_tweet;
					var hours      = Math.round(date_diff/(1000*60*60));

					// Build the html string for the current tweet
					var tweet_html = '<div class="tweet_text">';
					tweet_html    += '<a href="http://www.twitter.com/';
					tweet_html    += twitter_user + '">';
					tweet_html    += tweet.text + '<\/a><\/div>';
					tweet_html    += '<div class="tweet_hours">' + hours;
					tweet_html    += ' hours ago<\/div>';

					// Append html string to tweet_container div
					$('#tweet_container').append(tweet_html);
				}
			});
		}
	);
};