/*!
 * Infinite Ajax Scroll, a jQuery plugin
 * Version v0.1.6
 * http://webcreate.nl/
 *
 * Copyright (c) 2011-2012 Jeroen Fiege
 * Licensed under the MIT License:
 * http://webcreate.nl/license
 */
(function(b){b.ias=function(d){var m=b.extend({},b.ias.defaults,d);var c=new b.ias.util();var j=new b.ias.paging(m.scrollContainer);var h=(m.history?new b.ias.history():false);var f=this;r();function r(){j.onChangePage(function(x,v,w){if(h){h.setPage(x,w)}m.onPageChange.call(this,x,w,v)});s();if(h&&h.havePage()){q();pageNum=h.getPage();c.forceScrollTop(function(){if(pageNum>1){l(pageNum);curTreshold=p(true);b("html,body").scrollTop(curTreshold)}else{s()}})}return f}function s(){n();m.scrollContainer.scroll(g)}function g(){if(m.scrollContainer==b.ias.defaults.scrollContainer){scrTop=m.scrollContainer.scrollTop()}else{scrTop=m.scrollContainer.offset().top}wndHeight=m.scrollContainer.height();curScrOffset=scrTop+wndHeight;if(curScrOffset>=p()){t(curScrOffset)}}function q(){m.scrollContainer.unbind("scroll",g)}function n(){b(m.pagination).hide()}function p(v){el=b(m.container).find(m.item).last();if(el.size()==0){return 0}treshold=el.offset().top+el.height();if(!v){treshold+=m.tresholdMargin}return treshold}function t(w,v){urlNextPage=b(m.next).attr("href");if(!urlNextPage){return q()}j.pushPages(w,urlNextPage);q();o();e(urlNextPage,function(y,x){result=m.onLoadItems.call(this,x);if(result!==false){b(x).hide();curLastItem=b(m.container).find(m.item).last();curLastItem.after(x);b(x).fadeIn()}b(m.pagination).replaceWith(b(m.pagination,y));k();s();m.onRenderComplete.call(this,x);if(v){v.call(this)}})}function e(w,x){var v=[];b.get(w,null,function(y){container=b(m.container,y).eq(0);if(0==container.length){container=b(y).filter(m.container).eq(0)}if(container){container.find(m.item).each(function(){v.push(this)})}if(x){x.call(this,y,v)}},"html")}function l(v){curTreshold=p(true);if(curTreshold>0){t(curTreshold,function(){q();if((j.getCurPageNum(curTreshold)+1)<v){l(v);b("html,body").animate({scrollTop:curTreshold},400,"swing")}else{b("html,body").animate({scrollTop:curTreshold},1000,"swing");s()}})}}function u(){loader=b(".ias_loader");if(loader.size()==0){loader=b("<div class='ias_loader'>"+m.loader+"</div>");loader.hide()}return loader}function o(){loader=u();if(m.customLoaderProc!==false){m.customLoaderProc(loader)}else{el=b(m.container).find(m.item).last();el.after(loader);loader.fadeIn()}}function k(){loader=u();loader.remove()}};function a(c){if(window.console&&window.console.log){window.console.log(c)}}b.ias.defaults={container:"#container",scrollContainer:b(window),item:".item",pagination:"#pagination",next:".next",loader:'<img src="images/loader.gif"/>',tresholdMargin:0,history:true,onPageChange:function(){},onLoadItems:function(){},onRenderComplete:function(){},customLoaderProc:false};b.ias.util=function(){var d=false;var f=false;var c=this;e();function e(){b(window).load(function(){d=true})}this.forceScrollTop=function(g){b("html,body").scrollTop(0);if(!f){if(!d){setTimeout(function(){c.forceScrollTop(g)},1)}else{g.call();f=true}}}};b.ias.paging=function(){var e=[[0,document.location.toString()]];var h=function(){};var d=1;j();function j(){b(window).scroll(g)}function g(){scrTop=b(window).scrollTop();wndHeight=b(window).height();curScrOffset=scrTop+wndHeight;curPageNum=c(curScrOffset);curPagebreak=f(curScrOffset);if(d!=curPageNum){h.call(this,curPageNum,curPagebreak[0],curPagebreak[1])}d=curPageNum}function c(k){for(i=(e.length-1);i>0;i--){if(k>e[i][0]){return i+1}}return 1}this.getCurPageNum=function(k){return c(k)};function f(k){for(i=(e.length-1);i>=0;i--){if(k>e[i][0]){return e[i]}}return null}this.onChangePage=function(k){h=k};this.pushPages=function(k,l){e.push([k,l])}};b.ias.history=function(){var d=false;var c=false;e();function e(){c=!!(window.history&&history.pushState&&history.replaceState);c=false}this.setPage=function(g,f){this.updateState({page:g},"",f)};this.havePage=function(){return(this.getState()!=false)};this.getPage=function(){if(this.havePage()){stateObj=this.getState();return stateObj.page}return 1};this.getState=function(){if(c){stateObj=history.state;if(stateObj&&stateObj.ias){return stateObj.ias}}else{haveState=(window.location.hash.substring(0,7)=="#/page/");if(haveState){pageNum=parseInt(window.location.hash.replace("#/page/",""));return{page:pageNum}}}return false};this.updateState=function(g,h,f){if(d){this.replaceState(g,h,f)}else{this.pushState(g,h,f)}};this.pushState=function(g,h,f){if(c){history.pushState({ias:g},h,f)}else{hash=(g.page>0?"#/page/"+g.page:"");window.location.hash=hash}d=true};this.replaceState=function(g,h,f){if(c){history.replaceState({ias:g},h,f)}else{this.pushState(g,h,f)}}}})(jQuery);