$(document).ready(function() {

	var gallery = $("#thumbnails");
	var items = $("#thumbnails").find("img");
	//var single = items.filter(":first");
	var itemsWidth = 85 * items.length;
	itemsWidth -= 150;

	$("#slider").slider({
		min: 0,
		max: itemsWidth,
		value: itemsWidth,
		slide: function (event, ui) {
            gallery.css('margin-left', (ui.value - itemsWidth) + "px");
        }
	});

});