function fixDate(d) {
	var a = d.split(' ');
	var year = a.pop();
	return a.slice(0, 3).concat([year]).concat(a.slice(3)).join(' ');
}

function relativeTime(time_value) {
    var parsed_date = Date.parse(time_value);
    
    var relative_to = (arguments.length > 1) ? arguments[1] : new Date();
    var delta = parseInt((relative_to.getTime() - parsed_date) / 1000);
    
    if ( delta < 60 ) {
    	return 'less than a minute ago';
    } else if ( delta < 120 ) {
    	return 'about a minute ago';
    } else if ( delta < (45*60) ) {
    	return (parseInt(delta / 60)).toString() + ' minutes ago';
    } else if ( delta < (90*60) ) {
    	return 'about an hour ago';
    } else if ( delta < (24*60*60) ) {
    	return 'about ' + (parseInt(delta / 3600)).toString() + ' hours ago';
    } else if ( delta < (48*60*60) ) {
    	return '1 day ago';
    } else {
    	return (parseInt(delta / 86400)).toString() + ' days ago';
    }
}

function mtaTwitterCallback(obj) {
    var id = obj[0].user.id;
    var statuses_html = '';
    
    statuses_html += '<a href="http://twitter.com/' + obj[0].user.screen_name + '"></a>' + "\n<ul>\n";
    
    for ( var i = 0; i < obj.length; i++ ) {
		var tweet_text = obj[i].text;
		tweet_text = tweet_text.replace(/((http|https|ftp):\/\/(([A-Z0-9][A-Z0-9_-]*)(\.[A-Z0-9][A-Z0-9_-]*)+)(\/*)(:(\d+))?([A-Z0-9_\/.?~-]*))/gi, '<a href="$1">$1</a>');
		tweet_text = tweet_text.replace(/(@([A-Z0-9_]+))/gi, '@<a class="reply" title="$2 on twitter" href="http://twitter.com/$2">$2</a>');
    	
    	statuses_html += '<li class="';
    	if ( i == 0 ) {
    		statuses_html += 'first';
    	} else if ( i == (obj.length - 1) ) {
    		statuses_html += 'last';
    	}
    	if ( ((i+1) % 2) == 0 ) {
    		statuses_html += ' even';
    	}
    	else {
    		statuses_html += ' odd';
    	}
    	statuses_html += '">';
    	statuses_html += tweet_text;
    	statuses_html += ' <span class="when"><a href="http://twitter.com/' + obj[i].user.screen_name + '/statuses/' + obj[i].id + '">' + relativeTime(fixDate(obj[i].created_at)) + "</a></span></li>\n";
    }
    statuses_html += "</ul>\n";
    
    document.getElementById('mtaTwitter').innerHTML = statuses_html;
}