var Accueil_diapoDuration = 3000;
var Accueil_currentPosition = 1;
var Accueil_diapoInterval;
var Accueil_speed = 1000 ;
var Accueil_height=280;
var Service_diapoInterval;

$(function() {
		$('.image_prom').hide();
	aleatoire = Math.floor(Math.random() * $('.image_prom').length)+1;

	$('.' + aleatoire).show();
	Service_diapoInterval = setTimeout('Service_diapoScroll(' + aleatoire + ')', Accueil_diapoDuration);
	   
	var Accueil_blocDiapo = $('#accueil_promotion');
//	var Accueil_height = Accueil_blocDiapo.innerHeight();
	var Accueil_first = Accueil_blocDiapo.children('.vente_pres:first');
	var Accueil_firstNode = Accueil_first.get(0).nodeName;
	var Accueil_last = Accueil_blocDiapo.children('.vente_pres:last');
	var Accueil_lastNode = Accueil_first.get(0).nodeName;

	Accueil_blocDiapo.prepend('<'+Accueil_lastNode+' class="' + Accueil_last.attr('class') + '" style=\'' + Accueil_last.attr('style') + '\'>'+Accueil_last.html()+'</'+Accueil_lastNode+'>');
	Accueil_blocDiapo.append('<'+Accueil_firstNode+' class="' + Accueil_first.attr('class') + ' selected" style=\'' + Accueil_first.attr('style') + '\'>'+Accueil_first.html()+'</'+Accueil_firstNode+'>');

	
	
	Accueil_blocDiapo.children('.vente_pres.promo').each(function(j) {
		$(this).css('top', (j*Accueil_height)+'px');
	});

	Accueil_blocDiapo.scrollTop(Accueil_height);
	Accueil_diapoInterval = setTimeout('Accueil_diaposScroll(-1,' + Accueil_speed + ')', Accueil_diapoDuration/2);

});

function Service_diapoScroll(Service_NumDiapo)
{
	$('.image_prom').hide();
	$('.' + Service_NumDiapo).show();
	if (Service_NumDiapo<$('.image_prom').length) Service_NumDiapo++; else Service_NumDiapo=1;
	Service_diapoInterval = setTimeout('Service_diapoScroll(' + Service_NumDiapo + ')', Accueil_diapoDuration);

}

function Accueil_diaposScroll(value,speed)
{

	var blocDiapo = $('#accueil_promotion');
	
	blocDiapo.stop(true,true);
	
	if (Accueil_diapoInterval > 0)
	{
		clearTimeout(Accueil_diapoInterval);
	}
	
	var height = blocDiapo.innerHeight();

	var nbChilds = blocDiapo.children('.vente_pres.promo').length-2;

	Accueil_currentPosition += value;
	
	if (Accueil_currentPosition <1)
	{
		
		Accueil_currentPosition = nbChilds;
		blocDiapo.scrollTop((Accueil_currentPosition+1)*height);
	}
	else if (Accueil_currentPosition > nbChilds)
	{
		
		Accueil_currentPosition -= nbChilds;
		blocDiapo.scrollTop((Accueil_currentPosition-1) * height);
	}

	blocDiapo.animate({scrollTop:(Accueil_currentPosition * height)}, speed);
	
	Accueil_diapoInterval = setTimeout('Accueil_diaposScroll(-1,' + speed + ')', diapoDuration);
	
	
}

$(document).ready(function(){
	$('.promo_thumbs_navigation')
		.bind('click', function(){
		if ($(this).hasClass('haut'))
		{		
				Accueil_diaposScroll(1,speed);
		}else 
		{
					Accueil_diaposScroll(-1,speed);
		}
  	});
	$('.vente_pres').click(function(){
	window.location.replace($(this).find('.lien_detail').attr('href'));
	
	})

			
	
			

});