(function($){$.fn.extend({scrollable:function(arg1,arg2,arg3){return this.each(function(){if(typeof arg1=="string"){var el=$.data(this,"scrollable");el[arg1].apply(el,[arg2,arg3]);}else{new $.scrollable(this,arg1,arg2);}});}});$.scrollable=function(el,opts){$.data(el,"scrollable",this);this.init(el,opts);};$.extend($.scrollable.prototype,{init:function(el,config){var self=this;var opts={speed:300,scrollRepeatInterval:230,activeClass:'.activetab',itemRootClass:'.tab_container_header',stripClass:'.tab-strip',scrollerLeft:'.scrollerLeft',scrollerRight:'.scrollerRight',tabOptions:'.tab_container_options',newTab:'.newtab'};this.opts=$.extend(opts,config);var root=this.root=$(el);var itemRoot=this.itemRoot=$(opts.itemRootClass);itemRoot.children(":first").wrapAll('<div class="tabwrap" id="tabs" />');this.stripWrap=itemRoot.children(":first");var strip=this.strip=$(opts.stripClass);this.items=strip.children(':not(.newtab)');strip.append('<li class="tab-edge" />');this.edge=strip.children(":last");$(opts.newTab).insertAfter(this.edge);self.autoScrollTabs();},autoScrollTabs:function(){var count=this.items.length;var tw=this.itemRoot.outerWidth();var wrap=this.stripWrap;var wd=wrap[0];var pos=this.getScrollPos();var l=this.edge.offset().left-this.stripWrap.offset().left;if(l<=tw){wrap.width(tw);if(this.scrolling){this.scrolling=false;this.itemRoot.removeClass('tab-scrolling');}}else{if(!this.scrolling){this.itemRoot.addClass('tab-scrolling');}
wrap.width(tw);$(this.opts.newTab).remove();$('.newtabscrolling').show();if(!this.scrolling){if(!this.scrollLeft){this.createScrollers();}else{this.scrollerLeft.show();this.scrollerRight.show();}}
this.scrolling=true;if(pos>(l-tw)){wd.animate({scrollLeft:l-tw},this.opts.speed);}else{this.scrollToItem($(this.opts.activeClass));}}},createScrollers:function(){var self=this;this.root.find(this.opts.tabOptions).append('<div class="tab-scroller-left" />').find('div.tab-scroller-left').height(this.itemRoot.height()).bind('click',function(){self.onSnapLeft();}).bind('mousedown',function(){self.intervalID=window.setInterval(function(){self.onScrollLeft();},self.opts.scrollRepeatInterval);return false;}).bind('mouseup',function(){window.clearInterval(self.intervalID);return false;});this.scrollerLeft=this.root.find('div.tab-scroller-left');this.root.find(this.opts.tabOptions).append('<div class="tab-scroller-right" />').find('div.tab-scroller-right').height(this.itemRoot.height()).bind('click',function(){self.onSnapRight();}).bind('mousedown',function(){self.intervalID=window.setInterval(function(){self.onScrollRight();},self.opts.scrollRepeatInterval);return false;}).bind('mouseup',function(){window.clearInterval(self.intervalID);return false;});this.scrollerRight=this.root.find('div.tab-scroller-right');},onScrollRight:function(){var sw=this.getScrollWidth()-this.getScrollArea();var pos=this.getScrollPos()+this.itemRoot.offset().left;var s=Math.min(sw,pos+this.getScrollIncrement());if(pos+this.getScrollIncrement()<=sw){this.scrollTo(s);}},onScrollLeft:function(){var pos=this.getScrollPos();var s=Math.max(0,pos-this.getScrollIncrement());if(s!=pos){this.scrollTo(s);this.currentItemSnapedOnLeft=-1;}},onSnapRight:function(){var self=this;var pos=self.getScrollPos(),area=this.itemRoot.outerWidth();var left=area+pos-this.itemRoot.offset().left;var itemsWidth=0,index=-1;this.items.each(function(i){var item=$(this);itemsWidth+=item.outerWidth();if(itemsWidth>=left){index=i;return false;}});if(index>-1){self.scrollToItem(self.items.eq(index));}
else{self.scrollToItem(self.items.eq(self.items.length-1));}},onSnapLeft:function(){var self=this;var pos=self.getScrollPos()+this.itemRoot.offset().left;var itemsWidth=0,index=-1;this.items.each(function(i){var item=$(this);itemsWidth+=item.innerWidth();if(itemsWidth>pos){index=i;if(index>0&&self.currentItemSnapedOnLeft==index){index--;}
self.currentItemSnapedOnLeft=index;return false;}});if(index>-1){self.scrollToItem(self.items.eq(index));}},getScrollWidth:function(){return this.edge.offset().left+this.getScrollPos();},getScrollPos:function(){return parseInt(this.stripWrap.scrollLeft(),10)||0;},getScrollArea:function(){return parseInt(this.stripWrap.outerWidth(),10)||0;},getScrollIncrement:function(){return this.scrollIncrement||96;},scrollToItem:function(item){if(!item){return;}
var pos=this.getScrollPos(),area=this.getScrollArea();var left=item.offset().left+pos-this.stripWrap.offset().left;var right=left+item.outerWidth();if(left<pos){this.scrollTo(left);}else if(right>(pos+area)){this.scrollTo(right-area);}},scrollTo:function(pos){this.stripWrap.animate({scrollLeft:pos},this.opts.speed);this.updateScrollButtons(pos);},updateScrollButtons:function(pos){var sw=this.getScrollWidth()-this.getScrollArea();if(pos==0){window.clearInterval(this.intervalID);this.scrollerLeft.addClass('tab-scroller-disabled');}
else{this.scrollerLeft.removeClass('tab-scroller-disabled');}
if(pos+this.getScrollIncrement()>=(this.getScrollWidth()-this.getScrollArea()+49)){window.clearInterval(this.intervalID);this.scrollerRight.addClass('tab-scroller-disabled');}
else{this.scrollerRight.removeClass('tab-scroller-disabled');}}});})(jQuery);