var xmlhttp = false;
   try {
     xmlhttp = new XMLHttpRequest();
   } catch (trymicrosoft) {
     try {
       xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
     } catch (othermicrosoft) {
       try {
         xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
       } catch (failed) {
         xmlhttp = false;
       }  
     }
   }

   if (!xmlhttp)
     alert("Error initializing XMLHttpRequest!");	
	
	//A variable used to distinguish whether to open or close the calendar.

//***********************************************************************************************************************
function mostra_noticias(){
	
	document.getElementById("span_noticias").style.visibility="visible";
	document.getElementById("span_noticias").style.display="block";
	
	document.getElementById("span_recados").style.visibility="hidden";
	document.getElementById("span_recados").style.display="none";
	
	document.getElementById("span_eventos").style.visibility="hidden";
	document.getElementById("span_eventos").style.display="none";
	
	document.getElementById("a_noticias").style.color="#3A4E61";
	document.getElementById("a_recados").style.color="#5BAE16";
	document.getElementById("a_eventos").style.color="#5BAE16";
	
}

function mostra_recados(){
	
	document.getElementById("span_noticias").style.visibility="hidden";
	document.getElementById("span_noticias").style.display="none";
	
	document.getElementById("span_recados").style.visibility="visible";
	document.getElementById("span_recados").style.display="block";
	
	document.getElementById("span_eventos").style.visibility="hidden";
	document.getElementById("span_eventos").style.display="none";
	
	document.getElementById("a_noticias").style.color="#5BAE16";
	document.getElementById("a_recados").style.color="#3A4E61";
	document.getElementById("a_eventos").style.color="#5BAE16";
	
}

function motra_eventos(){
	
	document.getElementById("span_noticias").style.visibility="hidden";
	document.getElementById("span_noticias").style.display="none";
	
	document.getElementById("span_recados").style.visibility="hidden";
	document.getElementById("span_recados").style.display="none";
	
	document.getElementById("span_eventos").style.visibility="visible";
	document.getElementById("span_eventos").style.display="block";
	
	document.getElementById("a_noticias").style.color="#5BAE16";
	document.getElementById("a_recados").style.color="#5BAE16";
	document.getElementById("a_eventos").style.color="#3A4E61";
	
}

function mostra_postar(){
	
	document.getElementById("postar_recado").style.visibility="visible";
	document.getElementById("postar_recado").style.display="block";
	
	document.getElementById("btn_fechar").style.visibility="visible";
	document.getElementById("btn_fechar").style.display="block";
	
	document.getElementById("btn_postar").style.visibility="hidden";
	document.getElementById("btn_postar").style.display="none";
}

function fechar_postar(){
	
	document.getElementById("postar_recado").style.visibility="hidden";
	document.getElementById("postar_recado").style.display="none";
	
	document.getElementById("btn_postar").style.visibility="visible";
	document.getElementById("btn_postar").style.display="block";
	
	document.getElementById("btn_fechar").style.visibility="hidden";
	document.getElementById("btn_fechar").style.display="none";
}

function em_desenvolvimento(){
	alert("Em Desenvolvimento... Aguarde!!!");
}

function ja_logado(){
	alert("Você já está logado no site!!!");
}

function faca_login(){
	alert("Para alterar seu dados, necessario estar logado no site!");
}

function link(url){
	//alert(url);
	window.location.href = url;
}

function mostra_intrucao(instrucao){
	campo = "mostra_instrucao_"+instrucao;

	document.getElementById(campo).style.visibility="visible";
	document.getElementById(campo).style.display="block";
}

function fechar_intrucao(instrucao){
	campo = "mostra_instrucao_"+instrucao;

	document.getElementById(campo).style.visibility="hidden";
	document.getElementById(campo).style.display="none";
}


/*
function mais_item(id_retorno, url){
	//alert(id_retorno);
	

 //Obtém o objeto HTML
    objetoHTML=document.getElementById(id_retorno);
	

    //Exibe "Carregando..."
   //objetoHTML.innerHTML="<img src=\"img/loading_barra.gif\" />";

	var previneCache = new Date().getTime(); 
	var value_tipo = document.getElementById("cont").value;
	
	url = url+"&cont="+value_tipo;
	url = url+"&previnecache="+previneCache;
	//alert(url);

	
	//alert(url);
    //Abre a conexão
    xmlhttp.open("GET",url, true);

    //Função para tratamento do retorno
    xmlhttp.onreadystatechange=function() {
        if (xmlhttp.readyState==4){
            //Mostra o HTML recebido
			
			retorno=xmlhttp.responseText;
            objetoHTML.innerHTML=retorno;
			//alert(retorno);

			document.getElementById("cont").value = parseFloat(value_tipo) + 1; 
			
        }
    }
    //Executa
    xmlhttp.send(null)
}
*/