$(document).ready(function() {
	var lastBlock;
	
	$("ul.items li a").hover(
		function() {
			$(this).addClass(bkgclass);
			
			if (lastBlock) {
				$(lastBlock)
					.animate({width: $(lastBlock).data('width') + "px"}, {queue:false, duration:1000})
				;
			}
			
			var li = this.parentNode;
			$(li)
				.animate({width: ($(li).data('width') + 170) + "px"}, {queue:false, duration:1000})
			;
			lastBlock = li;
		}
		,function() {
			$(this).removeClass(bkgclass);
			
			if (lastBlock) {
				$(lastBlock).animate({width: $(lastBlock).data('width')}, {queue:false, duration:1000});
			}
		}
	);
	
});