/*
 * jQuery TOOLS plugin :: scrollable.circular 0.5.1
 * 
 * Copyright (c) 2009 Tero Piirainen
 * http://flowplayer.org/tools/scrollable.html#circular
 *
 * Dual licensed under MIT and GPL 2+ licenses
 * http://www.opensource.org/licenses
 *
 * Launch  : September 2009
 * Date: ${date}
 * Revision: ${revision} 
 */
(function(b){var a=b.tools.scrollable;a.plugins=a.plugins||{};a.plugins.circular={version:"0.5.1",conf:{api:false,clonedClass:"cloned"}};b.fn.circular=function(e){var d=b.extend({},a.plugins.circular.conf),c;b.extend(d,e);this.each(function(){var i=b(this).scrollable(),n=i.getItems(),k=i.getConf(),f=i.getItemWrap(),j=0;if(i){c=i}if(n.length<k.size){return false}n.slice(0,k.size).each(function(o){b(this).clone().appendTo(f).click(function(){i.click(n.length+o)}).addClass(d.clonedClass)});var l=b.makeArray(n.slice(-k.size)).reverse();b(l).each(function(o){b(this).clone().prependTo(f).click(function(){i.click(-o-1)}).addClass(d.clonedClass)});var m=f.children(k.item);var h=k.hoverClass;if(h){m.hover(function(){b(this).addClass(h)},function(){b(this).removeClass(h)})}function g(o){var p=m.eq(o);if(k.vertical){f.css({top:-p.position().top})}else{f.css({left:-p.position().left})}}g(k.size);b.extend(i,{move:function(s,r,p,q){var u=j+s+k.size;var t=u>i.getSize()-k.size;if(u<0||t){var o=j+k.size+(t?-n.length:n.length);g(o);u=o+s}if(q){m.removeClass(k.activeClass).eq(u+Math.floor(k.size/2)).addClass(k.activeClass)}if(u===j+k.size){return self}return i.seekTo(u,r,p)},begin:function(p,o){return this.seekTo(k.size,p,o)},end:function(p,o){return this.seekTo(n.length,p,o)},click:function(p,r,q){if(!k.clickable){return self}if(k.size==1){return this.next()}var s=p-j,o=k.activeClass;s-=Math.floor(k.size/2);return this.move(s,r,q,true)},getIndex:function(){return j},setPage:function(p,q,o){return this.seekTo(p*k.size+k.size,q,o)},getPageAmount:function(){return Math.ceil(n.length/k.size)},getPageIndex:function(){if(j<0){return this.getPageAmount()-1}if(j>=n.length){return 0}return(j+k.size)/k.size-1},getVisibleItems:function(){var o=j+k.size;return m.slice(o,o+k.size)}});i.onSeek(function(p,o){j=o-k.size;i.getNaviButtons().removeClass(k.disabledClass)});i.getNaviButtons().removeClass(k.disabledClass)});return d.api?c:this}})(jQuery);