/**
 * Vittorio Ottaviani - Mitecube -2011
 */

$(document).ready(function() {

	//rotation speed and timer
    //move the last item before first item, just in case user click prev button
	$('.carouselNews li:first').before($('.carouselNews li:last'));

	mite_prepareCarousel();
	
	$(document).keydown( function(event) {
		if ( event.which == 37 ) $('.btnPrevNews').click();
		if ( event.which == 39 ) $('.btnNextNews').click();
	} );
	
});

function mite_prepareCarousel() {
		
	var speed = 5000;

	//grab the width and calculate left value
	var item_width = $('.carouselNews li').outerWidth(); 
	var left_value = item_width * (-1); 
	
	//set the default item to the correct position 
	$('.carouselNews').css({'left' : left_value});

    //if user clicked on prev button
	$('.btnPrevNews').click(function() {

		//get the right position            
		var item_width = $('.carouselNews li').outerWidth(); 
		var left_indent = parseInt($('.carouselNews').css('left')) + item_width;
		var left_value = item_width * (-1); 

		//slide the item            
		$('.carouselNews:not(:animated)').animate({'left' : left_indent}, 600,function(){    

            //move the last item and put it as first item            	
			$('.carouselNews li:first').before($('.carouselNews li:last'));           

			//set the default item to correct position
			$('.carouselNews').css({'left' : left_value});
		
		});

		//cancel the link behavior            
		return false;
            
	});

 
    //if user clicked on next button
	$('.btnNextNews').click(function() {
		
		//get the right position
		var item_width = $('.carouselNews li').outerWidth(); 
		var left_indent = parseInt($('.carouselNews').css('left')) - item_width;
		var left_value = item_width * (-1); 

		//slide the item
		$('.carouselNews:not(:animated)').animate({'left' : left_indent}, 600, function () {
            
            //move the first item and put it as last item
			$('.carouselNews li:last').after($('.carouselNews li:first'));                 	
			
			//set the default item to correct position
			$('.carouselNews').css({'left' : left_value});
		
		});
		         
		//cancel the link behavior
		return false;
		
	});        
	
}