$(document).ready(function(){
	/* This code is executed after the DOM has been completely loaded */
	
	var totWidth=0;
	var positions = new Array();
	
	$('#slider_panel .slider').each(function(i){
		
		/* Traverse through all the sliders and store their accumulative widths in totWidth */
		
		positions[i]= totWidth;
		totWidth += $(this).width();
		
		/* The positions array contains each slider'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;
		}		
	});
	
	$('#slider_panel').width(totWidth);

	/* Change the cotnainer div's width to the exact width of all the sliders combined */

	$('#slider_menu ul li a').click(function(e,keepScroll){

			/* On a thumbnail click */

			$('li.item').removeClass('act').addClass('inact');
			$(this).parent().addClass('act');
			
			var pos = $(this).parent().prevAll('.item').length;
			current = pos;
			
			$('#slider_panel').stop().animate({marginLeft:-positions[pos]+'px'},450);
			/* Start the sliding animation */
			
			e.preventDefault();
			/* Prevent the default action of the link */		
			
			clearInterval(itvl);
			itvl = setInterval(function(){autoAdvance()},changeEvery*1000);
			// Stopping the auto-advance if an icon has been clicked:
			/*if(!keepScroll) 
			{
				clearInterval(itvl);
				itvl = setInterval(function(){autoAdvance()},5*1000);
			}
			*/
	});
	
	$('#slider_menu ul li.item:first').addClass('act').siblings().addClass('inact');
	/* On page load, mark the first thumbnail as active */
	
	
	
	/*****
	 *
	 *	Enabling auto-advance.
	 *
	 ****/
	 
	var current=0;
	function autoAdvance()
	{
		current++;
		$('#slider_menu ul li a').eq(current%$('#slider_menu ul li a').length).trigger('click',[true]);	// [true] will be passed as the keepScroll parameter of the click function on line 28
	}

	// The number of seconds that theslider will auto-advance in:
	
	var changeEvery = 5;

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

	/* End of customizations */
});