// JavaScript Document
//carrega as imagens do topo antes de qualquer outra coisa
image1 = new Image();
image1.src = "/images/topo/1.png";
image2 = new Image();
image2.src = "/images/topo/2.png";
image3 = new Image();
image3.src = "/images/topo/3.png";
image4 = new Image();
image4.src = "/images/topo/4.png";
image5 = new Image();
image5.src = "/images/topo/5.png";
image6 = new Image();
image6.src = "/images/topo/6.png";
image7 = new Image();
image7.src = "/images/topo/7.png";
image8 = new Image();
image8.src = "/images/topo/8.png";

//cria a instancia do Image Rotator
function theRotator() {
	//Set the opacity of all images to 0
	$('div#rotator ul li').css({opacity: 0.0});
	
	//Get the first image and display it (gets set to full opacity)
	$('div#rotator ul li:first').css({opacity: 1.0});
		
	//Call the rotator function to run the slideshow, 6000 = change to next image after 6 seconds
	setInterval('rotate()',6000);
	
}

function rotate() {	
	//Get the first image
	var current = ($('div#rotator ul li.show')?  $('div#rotator ul li.show') : $('div#rotator ul li:first'));

	//Get next image, when it reaches the end, rotate it back to the first image
	var next = ((current.next().length) ? ((current.next().hasClass('show')) ? $('div#rotator ul li:first') :current.next()) : $('div#rotator ul li:first'));	
	
	//Set the fade in effect for the next image, the show class has higher z-index
	next.css({opacity: 0.0})
	.addClass('show')
	.animate({opacity: 1.0}, 1000);

	//Hide the current image
	current.animate({opacity: 0.0}, 1000)
	.removeClass('show');
	
};

$(document).ready(function() {		
	//Load the slideshow
	theRotator();
});