$(document).ready(function(){
	
		var li_width = 85;	
		var amount = $(".previewitems img").length;
		
		if (amount>3) {
			$(".moveright").click(function(){
			
					var left_offset = Math.abs((parseInt($(".previewitems_inner").css("margin-left"))) / li_width);			
					
					if($(this).hasClass("blocked")) return false;
					
					$(".moveleft").addClass("blocked");
					$(".moveright").addClass("blocked");
					
					$(".previewitems_inner").stop().animate({"margin-left" : "-=" + li_width + "px"}, "slow", function(){
								$(".blocked").removeClass("blocked");
								$(".previewitems_inner .imgitem:first").appendTo(".previewitems_inner");
								$(".previewitems_inner").css("margin-left",parseInt($(".previewitems_inner").css("margin-left"))+li_width);
					});
							
			});		
				
			 
			 $(".moveleft").click(function(){
					
					var right_offset = parseInt($(".previewitems_inner").css("margin-left"));
					
					if($(this).hasClass("blocked")) return false;
					
					$(".previewitems_inner .imgitem:last").prependTo(".previewitems_inner");
					$(".previewitems_inner").css("margin-left",parseInt($(".previewitems_inner").css("margin-left"))-li_width);
							
					$(".moveleft").addClass("blocked");
					$(".moveright").addClass("blocked");
					
					$(".previewitems_inner").stop().animate({"margin-left" : "+=" + li_width + "px"}, "slow", function(){
								$(".blocked").removeClass("blocked");							
					});
					
					
			});
		
		}
});

showit = function (main, big) {	
	document.getElementById('bigimgimg').src = main;
	document.getElementById('bigimga1').href = big;
	document.getElementById('bigimga2').href = big;
}