function filter(){
			  
		var items = $('#destination div.item'),
		itemsByTags = {};
		
		// Looping though all the li items:
		
		items.each(function(i){
			var elem = $(this),
				tags = elem.data('tags').split(',');
			
			// Adding a data-id attribute. Required by the Quicksand plugin:
			elem.attr('data-id',i);
			
			$.each(tags,function(key,value){
				
				// Removing extra whitespace:
				value = $.trim(value);
				
				if(!(value in itemsByTags)){
					// Create an empty array to hold this item:
					itemsByTags[value] = [];
				}
				
				// Each item is added to one array per tag:
				itemsByTags[value].push(elem);
			});
			
		});

		// Creating the "Everything" option in the menu:
		createList('Alle',items);

		// Looping though the arrays in itemsByTags:
		$.each(itemsByTags,function(k,v){
			createList(k,v);
		});
			  
	
		$('#source a').live('click',function(e){
			var link = $(this);
			
			link.addClass('active').siblings().removeClass('active');
			
			// Using the Quicksand plugin to animate the li items.
			// It uses data('list') defined by our createList function:
			
			$('#destination').quicksand(link.data('list').find('div.item'),{
				useScaling: false,
				adjustHeight: false,
				enhancement: function() {
				  Cufon.refresh('#destination .item span');
				}
			}, function(){
				$('.scroller').jScrollPane();
			});
			e.preventDefault();
		});	  
		
		
		function createList(text,items){
			
			// This is a helper function that takes the
			// text of a menu button and array of li items
			
			// Creating an empty unordered list:
			var ul = $('<ul>',{'class':'hidden'});
			
			$.each(items,function(){
				// Creating a copy of each li item
				// and adding it to the list:
				
				$(this).clone().appendTo(ul);
			});

			//ul.appendTo('#products_wrapper');

			// Creating a menu item. The unordered list is added
			// as a data parameter (available via .data('list'):
			
			var a = $('<a>',{
				html: text,
				href:'#',
				data: {list:ul}
			}).appendTo('#source');
		}
	
		  
	
	}