/*		H E R O  R O T A T I O N
================================================*/

var tabs = [];
var ind = 0;
var inter;
	
function change(stringref){
	$('.hero:not(#' + stringref + ')').hide();
		
	//show proper tab, catch IE6 bug
	if ($.browser.msie && $.browser.version.substr(0,3) == "6.0")
		$('.hero#' + stringref).show();
		else 
		$('.hero#' + stringref).fadeIn('fast');
		//clear highlight from previous tab title
		$('#bd-navigation a:not(#' + stringref + 't)').removeClass('select');
		//highlight currenttab title
		$('#bd-navigation a[href=#' + stringref + ']').addClass('select');
}

function next(){
	//call change to display next tab
	change(tabs[ind++]);
	//if it's the last tab, clear the index
	if(ind >= tabs.length)
		ind = 0;
}

/*		  IE^6  P N G  F I X
================================================*/

// IE5.5+ PNG Alpha Fix v2.0 Alpha: Background Tiling Support
// (c) 2008-2009 Angus Turnbull http://www.twinhelix.com

// This is licensed under the GNU LGPL, version 2.1 or later.
// For details, see: http://creativecommons.org/licenses/LGPL/2.1/

var IEPNGFix = window.IEPNGFix || {};

IEPNGFix.tileBG = function(elm, pngSrc, ready) {
	// Params: A reference to a DOM element, the PNG src file pathname, and a
	// hidden "ready-to-run" passed when called back after image preloading.
	var data = this.data[elm.uniqueID],
		elmW = Math.max(elm.clientWidth, elm.scrollWidth),
		elmH = Math.max(elm.clientHeight, elm.scrollHeight),
		bgX = elm.currentStyle.backgroundPositionX,
		bgY = elm.currentStyle.backgroundPositionY,
		bgR = elm.currentStyle.backgroundRepeat;

	// Cache of DIVs created per element, and image preloader/data.
	if (!data.tiles) {
		data.tiles = {
			elm: elm,
			src: '',
			cache: [],
			img: new Image(),
			old: {}
		};
	}
	var tiles = data.tiles,
		pngW = tiles.img.width,
		pngH = tiles.img.height;

	if (pngSrc) {
		if (!ready && pngSrc != tiles.src) {
			// New image? Preload it with a callback to detect dimensions.
			tiles.img.onload = function() {
				this.onload = null;
				IEPNGFix.tileBG(elm, pngSrc, 1);
			};
			return tiles.img.src = pngSrc;
		}
	} else {
		// No image?
		if (tiles.src) ready = 1;
		pngW = pngH = 0;
	}
	tiles.src = pngSrc;

	if (!ready && elmW == tiles.old.w && elmH == tiles.old.h &&
		bgX == tiles.old.x && bgY == tiles.old.y && bgR == tiles.old.r) {
		return;
	}

	// Convert English and percentage positions to pixels.
	var pos = {
			top: '0%',
			left: '0%',
			center: '50%',
			bottom: '100%',
			right: '100%'
		},
		x,
		y,
		pc;
	x = pos[bgX] || bgX;
	y = pos[bgY] || bgY;
	if (pc = x.match(/(\d+)%/)) {
		x = Math.round((elmW - pngW) * (parseInt(pc[1]) / 100));
	}
	if (pc = y.match(/(\d+)%/)) {
		y = Math.round((elmH - pngH) * (parseInt(pc[1]) / 100));
	}
	x = parseInt(x);
	y = parseInt(y);

	// Handle backgroundRepeat.
	var repeatX = { 'repeat': 1, 'repeat-x': 1 }[bgR],
		repeatY = { 'repeat': 1, 'repeat-y': 1 }[bgR];
	if (repeatX) {
		x %= pngW;
		if (x > 0) x -= pngW;
	}
	if (repeatY) {
		y %= pngH;
		if (y > 0) y -= pngH;
	}

	// Go!
	this.hook.enabled = 0;
	if (!({ relative: 1, absolute: 1 }[elm.currentStyle.position])) {
		elm.style.position = 'relative';
	}
	var count = 0,
		xPos,
		maxX = repeatX ? elmW : x + 0.1,
		yPos,
		maxY = repeatY ? elmH : y + 0.1,
		d,
		s,
		isNew;
	if (pngW && pngH) {
		for (xPos = x; xPos < maxX; xPos += pngW) {
			for (yPos = y; yPos < maxY; yPos += pngH) {
				isNew = 0;
				if (!tiles.cache[count]) {
					tiles.cache[count] = document.createElement('div');
					isNew = 1;
				}
				var clipR = Math.max(0, xPos + pngW > elmW ? elmW - xPos : pngW),
					clipB = Math.max(0, yPos + pngH > elmH ? elmH - yPos : pngH);
				d = tiles.cache[count];
				s = d.style;
				s.behavior = 'none';
				s.left = (xPos - parseInt(elm.currentStyle.paddingLeft)) + 'px';
				s.top = yPos + 'px';
				s.width = clipR + 'px';
				s.height = clipB + 'px';
				s.clip = 'rect(' +
					(yPos < 0 ? 0 - yPos : 0) + 'px,' +
					clipR + 'px,' +
					clipB + 'px,' +
					(xPos < 0 ? 0 - xPos : 0) + 'px)';
				s.display = 'block';
				if (isNew) {
					s.position = 'absolute';
					s.zIndex = -999;
					if (elm.firstChild) {
						elm.insertBefore(d, elm.firstChild);
					} else {
						elm.appendChild(d);
					}
				}
				this.fix(d, pngSrc, 0);
				count++;
			}
		}
	}
	while (count < tiles.cache.length) {
		this.fix(tiles.cache[count], '', 0);
		tiles.cache[count++].style.display = 'none';
	}

	this.hook.enabled = 1;

	// Cache so updates are infrequent.
	tiles.old = {
		w: elmW,
		h: elmH,
		x: bgX,
		y: bgY,
		r: bgR
	};
};


IEPNGFix.update = function() {
	// Update all PNG backgrounds.
	for (var i in IEPNGFix.data) {
		var t = IEPNGFix.data[i].tiles;
		if (t && t.elm && t.src) {
			IEPNGFix.tileBG(t.elm, t.src);
		}
	}
};
IEPNGFix.update.timer = 0;

if (window.attachEvent && !window.opera) {
	window.attachEvent('onresize', function() {
		clearTimeout(IEPNGFix.update.timer);
		IEPNGFix.update.timer = setTimeout(IEPNGFix.update, 100);
	});
}


function getLiveStreamFeed()
{
	$.ajax({
   		type: "GET",
   		url: "/ajax",
   		data: "method=getLiveStream&url_limit=10&sort=0&range=3600&default_stream=all",
   		success: function(msg){
			var response = jQuery.parseJSON(msg);
			if(response.status=='SUCCESS')
			{
				if (response.urls && response.url_count > 0) 
				{
					populateFeed(response.urls);
				}
			}

		}
	});
}


function populateFeed(feedList)
{
	var feedHtml='';
	var feedListElement = document.getElementById('feed-carousel-body');
	if(typeof(feedListElement)!='undefined')
	{
		for(var i=0;i<feedList.length;i++)
		{
			$('<li class="feed-excerpt"><a class="articleLink" href="' + feedList[i].url + '" title="' + feedList[i].snippet + '">' + feedList[i].title + '</a><span class="dots">&hellip;</span><a class="domainLink" href="http://' +  feedList[i].domain + '">' + feedList[i].domain + '</a></li>').appendTo($(feedListElement));
		}
	}
	
	$('<a href="/stream" title="See the Latest Trending Stories" class="moreLink sts-fr sts-oh">See More&hellip;</a>').appendTo($('#trendingFeed-wrapper'));
	
	$('#trendingFeed-wrapper').removeClass('sts-dn');
	
	
	$("#feed-carousel").jCarouselLite({  
		vertical: true,
		hoverPause: true,
		visible: 1,  
		auto:3500,  
		speed:1000
	});
	
	if($.browser.safari || $.browser.version=='6.0' || $.browser.version=='7.0') {
		$('#feed-carousel-body').css('padding-top', '12px');
	}
}

$(document).ready(function() {
	
	$(".hero").map(function(){
				tabs[ind++] = $(this).attr("id");
	    	});
	//set index to next element to fade
	ind = 1;
	//initialize tabs, display the current tab
	$(".hero:not(:first)").hide();
	$(".hero:first").show();
	//highlight the current tab title
	$('#' + tabs[0] + 't').addClass('select');
	//handler for clicking on tabs
	$("#bd-navigation a").click(function(){
		//if tab is clicked, stop rotating 
		clearInterval(inter);
		//store reference to clicked tab
		stringref = $(this).attr("href").split('#')[1];
		//display referenced tab
		change(stringref);
		return false;
	});
	//start rotating tabs
	inter = setInterval("next()", 15000);
	
	
    $('#carousel-wrapper').jcarousel({
    	wrap: 'circular',
		visible:5
	});
	
	getLiveStreamFeed();
	
	$('#blogFeed').rssfeed('http://blog.sharethis.com/feed/rss/', {
	    limit: 3,
		snippet:false,
		date:false,
		header:false
	  });
	stLight.options({
		publisher:'6beba854-ee6d-4ae1-a4f3-b69815c8ef63',
		type:'website',
		embeds:true,
		onhover:false,
		tracking:'google'
	});
	
});