/************************************************
 * PHOTORAMA                                    *
 ***********************************************/
// Paramètres
var pause = 2500; // temps de pause
var fadeDuration = "slow"; // durée de la transition

var actual = 0;
var next = 1;
var count = 0;
var pass = true;

/*
 * c'est ici que l'on lance le photorama
 */
function initPhotorama(){
	
	$("#Home_Photorama li").css({'opacity':'0', 'position':'absolute'});
	$("#Home_Photorama li").eq(actual).css({'opacity':'1'});
	$(".home #Home_ListePhotos").css({'left':'0px'});
	$(".home #Home_ListePhotos img").removeAttr('width').removeAttr('height').css({'height':'31px'});
	$(".portail #Home_ListePhotos img").removeAttr('width').removeAttr('height').css({'height':'50px'});
	$(".description").css({'opacity':'0', 'position':'absolute', 'height':'200px'});
	$(".description").eq(actual).css({'opacity':'1'});
	count = $("#Home_Photorama li").size();
	photoramaEngine(actual, next, count);
	
	$("#Home_ListePhotos li").click(function(event){
		pass = false;
		var idx = 0;
		var cpt = $("#Home_Photorama li").size();
		for(var i=0; i<count; i++){
			if($(this).html()==$("#Home_ListePhotos li").eq(i).html()){
				idx = i;
			}
		}
		switchPhoto(actual, idx);
		actual = idx;
		
	});
}

/*
 * c'est le moteur du photorama
 */
function photoramaEngine(){
	if(pass){
		//alert(actual+"-"+next);
		actual = switchPhoto(actual, next);
		next = next+1;
		if(next==count) next = 0;
		setTimeout("photoramaEngine()", pause);
	}else{
		pass = true;
		setTimeout("photoramaEngine()", 6000);
	}
}

/*
 * c'est ici que se passe la transition
 */
function switchPhoto(actualPic, nextPic){
	$("#Home_Photorama li").eq(actualPic).animate({'opacity':'0'}, fadeDuration);
	$("#Home_Photorama li").eq(nextPic).animate({'opacity':'1'}, fadeDuration);
	$("#Home_ListePhotos li").eq(actualPic).children("a").animate({'opacity':'0.5'}, fadeDuration);
	$("#Home_ListePhotos li").eq(nextPic).children("a").animate({'opacity':'1'}, fadeDuration);
	$(".description").eq(actualPic).animate({'opacity':'0'}, fadeDuration);
	$(".description").eq(nextPic).animate({'opacity':'1'}, fadeDuration);
	return nextPic;
}