(function(d){var k=d.scrollTo=function(a,i,e){d(window).scrollTo(a,i,e)};k.defaults={axis:'xy',duration:parseFloat(d.fn.jquery)>=1.3?0:1};k.window=function(a){return d(window)._scrollable()};d.fn._scrollable=function(){return this.map(function(){var a=this,i=!a.nodeName||d.inArray(a.nodeName.toLowerCase(),['iframe','#document','html','body'])!=-1;if(!i)return a;var e=(a.contentWindow||a).document||a.ownerDocument||a;return d.browser.safari||e.compatMode=='BackCompat'?e.body:e.documentElement})};d.fn.scrollTo=function(n,j,b){if(typeof j=='object'){b=j;j=0}if(typeof b=='function')b={onAfter:b};if(n=='max')n=9e9;b=d.extend({},k.defaults,b);j=j||b.speed||b.duration;b.queue=b.queue&&b.axis.length>1;if(b.queue)j/=2;b.offset=p(b.offset);b.over=p(b.over);return this._scrollable().each(function(){var q=this,r=d(q),f=n,s,g={},u=r.is('html,body');switch(typeof f){case'number':case'string':if(/^([+-]=)?\d+(\.\d+)?(px|%)?$/.test(f)){f=p(f);break}f=d(f,this);case'object':if(f.is||f.style)s=(f=d(f)).offset()}d.each(b.axis.split(''),function(a,i){var e=i=='x'?'Left':'Top',h=e.toLowerCase(),c='scroll'+e,l=q[c],m=k.max(q,i);if(s){g[c]=s[h]+(u?0:l-r.offset()[h]);if(b.margin){g[c]-=parseInt(f.css('margin'+e))||0;g[c]-=parseInt(f.css('border'+e+'Width'))||0}g[c]+=b.offset[h]||0;if(b.over[h])g[c]+=f[i=='x'?'width':'height']()*b.over[h]}else{var o=f[h];g[c]=o.slice&&o.slice(-1)=='%'?parseFloat(o)/100*m:o}if(/^\d+$/.test(g[c]))g[c]=g[c]<=0?0:Math.min(g[c],m);if(!a&&b.queue){if(l!=g[c])t(b.onAfterFirst);delete g[c]}});t(b.onAfter);function t(a){r.animate(g,j,b.easing,a&&function(){a.call(this,n,b)})}}).end()};k.max=function(a,i){var e=i=='x'?'Width':'Height',h='scroll'+e;if(!d(a).is('html,body'))return a[h]-d(a)[e.toLowerCase()]();var c='client'+e,l=a.ownerDocument.documentElement,m=a.ownerDocument.body;return Math.max(l[h],m[h])-Math.min(l[c],m[c])};function p(a){return typeof a=='object'?a:{top:a,left:a}}})(jQuery);

(function($) {
    $.fn.jflow = function(params){

         var options = {
            item: '.jflow_item',
            itens: 3,
            inativeClassPrev : 'jflow_inativo',
			inativeClassNext : 'jflow_inativo',
            prev: '.jflow_voltar a',
            next: '.jflow_avancar a',
            mode: 'vertical',
            speed: 800
         };

         var op = $.extend(options, params);
         var $self = $(this);
         var count = 0;
         var $flowbox = $(op.item);
         var li_count = $(op.item).length;

         if(li_count<=op.itens) {
             $(op.next).addClass(op.inativeClassNext);
         }
         var li_amount = 0;
         if(li_count<op.itens) {
             li_amount = li_count;
         } else {
             li_amount = op.itens;
         }

         var max_itens = li_count-op.itens;
         var flowbox_dimensions = op.mode == 'vertical' ? $flowbox.outerHeight(true) : $flowbox.outerWidth(true);
         var li_size = flowbox_dimensions;
         var overall_size = li_count*flowbox_dimensions;
         var overflow_size = li_size*li_amount;
		 
         if(op.mode=='vertical') {
             $self.css({
                 'height':overflow_size + 'px',
                 'overflow' : 'hidden'
             });
         } else {
             $self.css({
                 'width': overflow_size,
                 'overflow':'hidden'
             });
             $self.children(':first').css({
                 'width':overall_size
             });
         }
         $(op.prev).addClass(op.inativeClassPrev).bind('click',function(){
            if(count>0) {
                count-=op.itens;
                $self.scrollTo( $(op.item).eq(count), op.speed, {onAfter: function (){
                    if(count===0) {
                        $(op.prev).addClass(op.inativeClassPrev);
                    }
                }});
                $(op.next).removeClass(op.inativeClassNext);
            }
            //IE 7 Bug
            $(this).blur();
            return false;
         });
		 
		 

         $(op.next).bind('click',function(){
                 if(count<max_itens) {
                    count+=op.itens;
                    $self.scrollTo( $(op.item).eq(count), op.speed, {onAfter: function (){
                        if(count>=max_itens) {
                           $(op.next).addClass(op.inativeClassNext);
                        }
                    }});
                    $(op.prev).removeClass(op.inativeClassPrev);
                }
                //IE7 Bug
                $(this).blur();
                return false;
         });

    };

})(jQuery);