/*AJAX*/
function ObjAjax(){
  try {
    return new ActiveXObject("Microsoft.XMLHTTP");
  } catch(e) {
    try {
      return new ActiveXObject("Msxml2.XMLHTTP");
    } catch(ex) {
      try {
        return new XMLHttpRequest();
      } catch(exc) {
        return false;
      }
    }
  }
}

function navegar(page,div){
  ajax = new ObjAjax();
  var div = document.getElementById(div);
  document.getElementById('noticias').style.height = "1000px";

  ajax.onreadystatechange = function(){
    if(ajax.readyState == 1){div.innerHTML="<p class='ajax'>Aguarde, carregando...</p>";}
    if(ajax.readyState == 4){div.innerHTML=ajax.responseText;   document.getElementById('noticias').style.height = "auto"; }
  }
  ajax.open("GET",page,true);
  ajax.send(null);
}
/*AJAX*/

/*VARIADAS*/
function noCentro(obj){
        var alvo = document.getElementById(obj);
        alvo.style.display = "block";
        var larguraAlvo = alvo.clientWidth;
        var alturaAlvo = alvo.clientHeight;
        var marginLeftAlvo = ((larguraAlvo*1) / 2);
        var marginTopAlvo = ((alturaAlvo*1) / 2);

          alvo.style.position = "absolute";
          alvo.style.marginLeft = "-"+marginLeftAlvo+"px";
          alvo.style.marginTop = "-"+marginTopAlvo+"px";
          alvo.style.left = "30%";
          alvo.style.top = "50%";
}
function fechar(obj){
        document.getElementById(obj).style.display= "none";
}

function noCentro2(obj){
        var alvo = document.getElementById(obj);
        alvo.style.display = "block";
        var larguraAlvo = alvo.clientWidth;
        var alturaAlvo = alvo.clientHeight;
        var marginLeftAlvo = ((larguraAlvo*1) / 2);
        var marginTopAlvo = ((alturaAlvo*1) / 2);

          alvo.style.position = "absolute";
          alvo.style.marginLeft = "-"+marginLeftAlvo+"px";
          alvo.style.marginTop = "-"+marginTopAlvo+"px";
          alvo.style.left = "68%";
          alvo.style.top = "50%";
}
function fechar2(obj){
        document.getElementById(obj).style.display= "none";
}
/*VARIADAS*/