PageNav=Class.create({initialize:function(a,b){this.container=$(a);this.getElement(b);
if(this.container&&this.container.empty()&&this.element){this.previous();this.next()
}},getElement:function(a){var b=document.body.id;if(b){this.element=$(a+b)}},previous:function(a){var b=this.getLink("previous");
this.writeLink(b,"previous")},next:function(b){var a=this.getLink("next");this.writeLink(a,"next")
},getLink:function(b){var a=this.element[b]("li");if(a){return a.down("a")}},writeLink:function(b,a){if(b){var c=new Element("a",{href:b.href}).update(b.down("h4").innerHTML);
b=new Element("div",{"class":a});b.appendChild(c)}if(b&&b.nodeType==1){this.container.appendChild(b)
}}});Event.onDOMReady(function(){new PageNav("pagenav","sn-")});