var blank = new Image();
blank.src = '/imgs/pix.gif';
var badBrowser = (/MSIE ((5\.5)|6)/.test(navigator.userAgent) && navigator.platform == "Win32");

function verificaPNGs() {
	// Verifica se é IE 5.5 ou 6 e substitui as PNGs
	if (badBrowser) $('img[src$=.png]').each(function() {
		if (!this.complete) this.onload = function() { fixPng(this) };
		else fixPng(this);
	});
}

// Substitui a imagem png por uma imagem transparente (IE antigo)
function fixPng(png) {
	// get src
	var src = png.src;
	// set width and height
	if (!png.style.width) { png.style.width = $(png).width(); }
	if (!png.style.height) { png.style.height = $(png).height(); }
	// replace by blank image
	png.onload = function() { };
	png.src = blank.src;
	// set filter (display original image)
	png.runtimeStyle.filter = "progid:DXImageTransform.Microsoft.AlphaImageLoader(src='" + src + "',sizingMethod='scale')";
}



$().ready(function(){
	verificaPNGs()
	$("#navThumbs ul").tabs("#banners > div", {
		rotate: true
	}).slideshow();

	// Tweets
	$.getJSON('http://twitter.com/status/user_timeline/borellamcz.json?count=18&callback=?', function(data) {
		$(data).each(function() {
			$('#tweets ul').append('<li><span class="fCor2 bCor1">' + relative_time(this.created_at) + '</span>  <p class="fCor1">' + this.text.linkify() + '</p></li>');
		});
		$('#tweetsAnterior, #tweetsProximo').show();
		$('#tweets').removeClass('carregando').scrollable({
			size: 1, items: 'ul', prev: '#tweetsAnterior', next: '#tweetsProximo'
		}).navigator({
			navi:'#tweetsPaginacao'
		});
	});	
});

// Acrescenta o método linkfy no obj String. Este método transforma urls em links clicáveis
String.prototype.linkify = function() {
	return this.replace(/[A-Za-z]+:\/\/[A-Za-z0-9-_]+\.[A-Za-z0-9-_:%&\?\/.=]+/, function(m) {
		return m.link(m);
	});
};

// Função que retorna uma string com o tempo relativo a time_value
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);

	var r = '';
	if (delta < 60) { r = 'um minuto atrás'; }
	else if(delta < 120) { r = 'alguns minutos atrás'; }
	else if(delta < (45*60)) { r = (parseInt(delta / 60)).toString() + ' minutos atrás'; }
	else if(delta < (90*60)) { r = 'uma hora atrás'; }
	else if(delta < (24*60*60)) { r = '' + (parseInt(delta / 3600)).toString() + ' horas atrás'; }
	else if(delta < (48*60*60)) { r = 'um dia atrás'; }
	else { r = (parseInt(delta / 86400)).toString() + ' dias atrás'; }

	return r;
}

Shadowbox.init({
	language: 'pt-br',
	overlayColor: '#000000',
	overlayOpacity: 0.8,
	handleOversize: 'drag',
	continuous: true,
	players: ['img', 'html', 'iframe', 'qt', 'wmp', 'swf', 'flv'],
	onFinish: function() {
		$('#sb-wrapper').show();
		if($('img',Shadowbox.getCurrent().el).attr('alt') != '' && $('img',Shadowbox.getCurrent().el).attr('alt') != undefined) {
			if($('#sb-caption').html() == null) $('#sb-body').after('<div id="sb-caption"><div id="sb-caption-inner"></div></div>');
			$('#sb-caption-inner').html($('img',Shadowbox.getCurrent().el).attr('alt'));
			$('#sb-caption').css({
					position: 'absolute',
					textAlign: 'center',
					color: '#FFFFFF',
					background: 'url(/legba/site/imgs/legendas.png) top',
					top: ($('#sb-body').position().top+$('#sb-body').height()-$('#sb-caption').height()+1) + 'px', //1 da borda
					width: ($('#sb-body').width()) + 1 + 'px'
				}).hide().slideDown('fast');
		}else{
			$('#sb-caption').hide('fast');
		}
	},
	onClose: function() {
		$('#sb-caption').hide();
	}
});