$(function() {
	RandomQuote();
	
	// ensure min-height is set on content
	Layout();
	$(window).bind('resize', function() { Layout(); });
	
	if ($.browser.msie) {
		IEMenu();
	}
	
	$('body').append('<script src="http://twitter.com/statuses/user_timeline/createradiance.json?callback=twitterCallback2&amp;count=1" type="text/javascript"></script>');
});

function Layout() {
	// set min-height of content
	var minHeight = $(window).height() - $('#header').height();
	$('#content, #left, #right').css('min-height', minHeight + 'px');
	
	// snug up the social icons to the wrapper
	$('#socialmedia').css('left', ($('#wrapper').offset().left + $('#wrapper').width() + 20) + 'px');
}

function IEMenu() {
	$('#nav li').each(function() { 
		$(this).bind('mouseover', function() { $(this).addClass('sfhover'); })
			   .bind('mouseout', function() { $(this).removeClass('sfhover'); });
	});
}

function RandomQuote() {
	var random = Math.max(1, Math.floor(Math.random() * 7));
	if (random == 2) { // get rid of one quote
		random = 1;
	}
	var height = 262;
	var verticalOffset = (random * height) + 28;
	
	$('#quote').css('background-position', '0px -' + verticalOffset + 'px');
}

function MailingList() {
	var email = $('#txtEmail').val();
	if (email == '' || email == 'Your Email Address') {
		alert('Please provide your email address!');
		return false;
	}
	alert('Thank you for subscribing!');
}

function twitterCallback2(twitters) {
    var statusHTML = [];
    for (var i = 0; i < twitters.length; i++) {
        var username = twitters[i].user.screen_name;
        var status = twitters[i].text.replace(/((https?|s?ftp|ssh)\:\/\/[^"\s\<\>]*[^.,;'">\:\s\<\>\)\]\!])/g, function(url) {
            return '<a href="' + url + '">' + url + '</a>';
        }).replace(/\B@([_a-z0-9]+)/ig, function(reply) {
            return reply.charAt(0) + '<a href="http://twitter.com/' + reply.substring(1) + '">' + reply.substring(1) + '</a>';
        });
        statusHTML.push('<div class="tweet"><span>' + status + '</span><br/><a style="font-size:85%; font-style:italic;" href="http://twitter.com/' + username + '/statuses/' + twitters[i].id + '">' + relative_time(twitters[i].created_at) + '</a></div>');
    }
    
    $('#twitter_updates').fadeOut(function() { 
    	$('#twitter_updates').html(statusHTML.join('')).fadeIn();
    });
}

function relative_time(time_value) {
    var values = time_value.split(" ");
    time_value = values[1] + " " + values[2] + ", " + values[5] + " " + values[3];
    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);
    delta = delta + (relative_to.getTimezoneOffset() * 60);

    if (delta < 60) {
        return 'less than a minute ago';
    } else if (delta < 120) {
        return 'about a minute ago';
    } else if (delta < (60 * 60)) {
        return (parseInt(delta / 60)).toString() + ' minutes ago';
    } else if (delta < (120 * 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';
    }
}