/*
			 * call this function on a scrollable node to add some more clones on the right side of the carousel
			 * as the jQuery Tools Scrollable plugin is build to just show one item on screen at once (not
			 * multiple small elements). This function fills up the empty space right to the carousel with dummy
			 * nodes
			 * @param int addItems [OPTIONAL] define the number of clone items to aditionally add to the wrapper
			 * @return void
			 */
			$.fn.scrollableAddClones = function(addItems) {
			  // grab scrollable plugin
			  var scrollable;
			  if (!(scrollable = $(this).data('scrollable')) || !scrollable.getConf().circular)
			    return;
			  // grab scrollable elements and remember it's count
			  var nodes = scrollable.getItems();
			  var length = nodes.length;
			  // grab class for the nodes
			  var clonedClass = scrollable.getConf().clonedClass;
			  // get wrap object to append the clones to
			  var wrap = scrollable.getItemWrap();
			  // fill as much nodes as needed for 500 pixels
			  if (!addItems) addItems = Math.ceil(1600 / nodes.eq(1).width());
			  // create fake container to add the clones to (max 15 clones)
			  var newNodesAppend = $('<span />');
			  for (var i = 1; i <= (addItems < 15 ? addItems : 15); i++)
			    nodes.eq(i % length).clone().addClass(clonedClass).appendTo(newNodesAppend);
			  // insert HTML
			  newNodesAppend.children().appendTo(wrap);
			}