(function($){var defaults={topSpacing:0,bottomSpacing:0,className:"is-sticky",wrapperClassName:"sticky-wrapper",center:false,getWidthFrom:"",offset:0},$window=$(window),$document=$(document),sticked=[],windowHeight=$window.height(),scroller=function(){var scrollTop=$window.scrollTop(),documentHeight=$document.height(),dwh=documentHeight-windowHeight,extra=scrollTop>dwh?dwh-scrollTop:0;for(var i=0;i<sticked.length;i++){var s=sticked[i],elementTop=s.stickyWrapper.offset().top+s.offset,etse=elementTop-s.topSpacing-extra;if(scrollTop<=etse){if(s.currentTop!==null){s.stickyElement.css("position","").css("top","");s.stickyElement.parent().removeClass(s.className);s.currentTop=null}}else{var newTop=documentHeight-s.stickyElement.outerHeight()-s.topSpacing-s.bottomSpacing-scrollTop-extra;if(newTop<0){newTop=newTop+s.topSpacing}else{newTop=s.topSpacing}if(s.currentTop!=newTop){s.stickyElement.css("position","fixed").css("top",newTop);if(typeof s.getWidthFrom!=="undefined"){s.stickyElement.css("width",$(s.getWidthFrom).width())}s.stickyElement.parent().addClass(s.className);s.currentTop=newTop}}}},resizer=function(){windowHeight=$window.height()},methods={init:function(options){return this.each(function(){var o=$.extend({},defaults,options);var stickyElement=$(this);var wrapper=$("<div/>",{class:o.wrapperClassName});stickyElement.wrapAll(wrapper);if(o.center){stickyElement.parent().css({width:stickyElement.outerWidth(),marginLeft:"auto",marginRight:"auto"})}if(stickyElement.css("float")=="right"){stickyElement.css({float:"none"}).parent().css({float:"right"})}var stickyWrapper=stickyElement.parent();stickyWrapper.css("height",stickyElement.outerHeight(true));sticked.push({topSpacing:o.topSpacing,bottomSpacing:o.bottomSpacing,stickyElement:stickyElement,currentTop:null,stickyWrapper:stickyWrapper,className:o.className,getWidthFrom:o.getWidthFrom,offset:o.offset})})},update:scroller,unstick:function(options){return this.each(function(){var unstickyElement=$(this);removeIdx=-1;for(var i=0;i<sticked.length;i++){if(sticked[i].stickyElement.get(0)==unstickyElement.get(0)){removeIdx=i}}if(removeIdx!=-1){sticked.splice(removeIdx,1);unstickyElement.unwrap();unstickyElement.removeAttr("style")}})}};if(window.addEventListener){window.addEventListener("scroll",scroller,false);window.addEventListener("resize",resizer,false)}else if(window.attachEvent){window.attachEvent("onscroll",scroller);window.attachEvent("onresize",resizer)}$.fn.sticky=function(method){if(methods[method]){return methods[method].apply(this,Array.prototype.slice.call(arguments,1))}else if(typeof method==="object"||!method){return methods.init.apply(this,arguments)}else{$.error("Method "+method+" does not exist on jQuery.sticky")}};$(function(){setTimeout(scroller,0)})})(jQuery);