$(document).ready(function(){
	/* This code is executed after the DOM has been completely loaded */
	
	var totWidth=0;
	var positions = new Array();
	
	$('#slides .slide').each(function(i){
		
		/* Traverse through all the slides and store their accumulative widths in totWidth */
		
		positions[i]= totWidth;
		totWidth += $(this).width();
		
		/* The positions array contains each slide's commulutative offset from the left part of the container */
		
		if(!$(this).width())
		{
			alert("Please, fill in width & height for all your images!");
			return false;
		}
		
	});
	
	$('#slides').width(totWidth);

	/* arrete le déroulement au survol du slide et le reprend quand on sort */
	
	var pause = 0;
	$("#slides .slide").mouseover(function() {		
		//on met tout en pause
		clearInterval(itvl);
		
	  }).mouseout(function(){
		//on fait repartir de là où on s'était arrêté
			itvl = setInterval(function(){autoAdvance()},changeEvery*1000);
		
	  });
	
	
	/* Change the cotnainer div's width to the exact width of all the slides combined */
	$('#menu ul li a').click(function(e,keepScroll){
		
		
		/* On a thumbnail click */
		
		$('li.menuItem').removeClass('act').addClass('inact');
		$(this).parent().addClass('act');
		
		var pos = $(this).parent().prevAll('.menuItem').length;
		
		$('#slides').stop().animate({marginLeft:-positions[pos]+'px'},450);
		/* Start the sliding animation */
		
		// e.preventDefault();
		/* Prevent the default action of the link */
		
		// Stopping the auto-advance if an icon has been clicked:
		//if(!keepScroll) clearInterval(itvl);
		
		// affect current avec le N° de l'icone cliqué pour que l'auto advance reparte de ce dernier
		current = $('#menu ul li a').index(this);
		
		
	});
	
	$('#menu ul li a').mouseover(function(e){
		
		
		/* On a thumbnail click */
		
		$('li.menuItem').removeClass('act').addClass('inact');
		$(this).parent().addClass('act');
		
		var pos = $(this).parent().prevAll('.menuItem').length;
		
		$('#slides').stop().animate({marginLeft:-positions[pos]+'px'},450);
		/* Start the sliding animation */
		
		// e.preventDefault();
		/* Prevent the default action of the link */
		
		// Stopping the auto-advance if an icon has been clicked:
		//if(!keepScroll) clearInterval(itvl);
		
		// affect current avec le N° de l'icone cliqué pour que l'auto advance reparte de ce dernier
		current = $('#menu ul li a').index(this);
		
		
	});
	

	$('#menu ul li.menuItem:first').addClass('act').siblings().addClass('inact');
	/* On page load, mark the first thumbnail as active */
		
	/*****
	 *
	 *	Enabling auto-advance.
	 *
	 ****/
	 
	var current=1;
	function autoAdvance()
	{
		if(current==-1) return false;
		
		$('#menu ul li a').eq(current%$('#menu ul li a').length).trigger('click',[true]);	// [true] will be passed as the keepScroll parameter of the click function on line 28
		
		current++;
	}

	// The number of seconds that the slider will auto-advance in:
	
	var changeEvery = 4;

	var itvl = setInterval(function(){autoAdvance()},changeEvery*1000);

	/* End of customizations */
});