/***************************/
//@Author: Adrian "yEnS" Mato Gondelle
//@website: www.yensdesign.com
//@email: yensamg@gmail.com
//@license: Feel free to use it, but keep this credits please!
/***************************/

//SETTING UP OUR POPUP
//0 means disabled; 1 means enabled;
var popupStatus = 0;

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()',5000);
}

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

    if ( current.length == 0 ) current = $('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'));
	
	//Un-comment the 3 lines below to get the images in random order
	var sibs = current.siblings();
        var rndNum = Math.floor(Math.random() * sibs.length );
        //var next = $( sibs[ rndNum ] );
	
	//center image
	var popupwidht = $("#popupContact").width();
	var imagewidht = $(next).width();
		
	//Set the fade in effect for the next image, the show class has higher z-index
	next.css({opacity: 0.0, "left":(popupwidht-imagewidht)/2+"px"})
	.addClass('show')
	.animate({opacity: 1.0}, 1000);

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


//loading popup with jQuery magic!
function loadPopup(){
	//loads popup only if it is disabled
	if(popupStatus==0){
		$("#backgroundPopup").css({
			"opacity": "0.7"
		});
		$("#backgroundPopup").fadeIn("slow");
		$("#popupContact").fadeIn("slow");
		popupStatus = 1;
	}
}

//disabling popup with jQuery magic!
function disablePopup(){
	//disables popup only if it is enabled
	if(popupStatus==1){
		$("#backgroundPopup").fadeOut("slow");
		$("#popupContact").fadeOut("slow");
		popupStatus = 0;
	}
}

//centering popup
function centerPopup(){
	//request data for centering
	var windowWidth = document.documentElement.clientWidth;
	var windowHeight = document.documentElement.clientHeight;
	var popupHeight = $("#popupContact").height();
	var popupWidth = $("#popupContact").width();
	//centering
	$("#popupContact").css({
		"position": "absolute",
		"top": 93+"px",
		"left": windowWidth/2-popupWidth/2
	});
	//only need force for IE6
	
	$("#backgroundPopup").css({
		"height": windowHeight
	});
	
}

//CONTROLLING EVENTS IN jQuery
$(document).ready(function(){
	
	//CHECK COOKIE AND SHOW POPUP
	//se il cookie esiste
	if ($.cookie('popup') == 'contenuto'){
		//do nothing
		return "";
	}
	else{
		//centering with css
		centerPopup();
		//load popup
		loadPopup();
		//Load slideshow
		theRotator();
		$('div.rotator').fadeIn(1000);
		$('div.rotator ul li').fadeIn(1000); // tweek for IE
		//create cookie
		var date = new Date();
		date.setTime(date.getTime() + (3 * 60 * 60 * 1000));//ore * min * secondi * millisecondi - 3 ore
		$.cookie('popup', 'contenuto', { expires: date, path: '/' });
	}
				
	//CLOSING POPUP
	//Click the x event!
	$("#popupContactClose").click(function(){
		disablePopup();
	});
	//Click out event!
	$("#backgroundPopup").click(function(){
		disablePopup();
	});
	//Press Escape event!
	$(document).keypress(function(e){
		if(e.keyCode==27 && popupStatus==1){
			disablePopup();
		}
	});

});