//Inclui o sufixo 
function alteraLinkForum(href){
	var indBarra = href.lastIndexOf('/');
	return 'forum' + href.substr(indBarra)
}

function capturaClickForum(){
	
	Event.stopObserving('forum', 'click');
	
	Event.observe('forum', 'click', function(event) {
		
			var element = Event.element(event);
			
			//alert(element.tagName);
			
			if ('A' == element.tagName){						
			
				alert(alteraLinkForum(element.href));
								
				carrega_conteudo(alteraLinkForum(element.href));
				
				Event.stop(event);
				
			}
			
		});	
}

function carrega_conteudo(pagina){
	
	$("conteudo_pagina").update("<img src=\"images/loading.gif\" style=\"margin:10px\" />");
	
	new Ajax.Request(
		pagina,
		{
			method: 'GET',
			onSuccess: function(transport){
				
				//atualiza o conteudo da pagina
				$("conteudo_pagina").update(transport.responseText);
				capturaClickForum();
				
			}	
		}
	);
}