$(document).ready(function(){
	var totWidth=0,
		positions = new Array(),
		widthImg = 891;
	
	$('#slides img.slide').each(function(i){
		positions[i]= totWidth;
		totWidth += widthImg;
	});
	
	$('#slides').width(totWidth);
	/* 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 span.selected').hide();
			$(this).parent().children('span').show();
			
			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);
	});
	
	$('#menu ul li.menuItem span.selected:first').show();
	/* 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 = 5;

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