function toggleLayer(_w,_h) {

   var isIE=document.all?true:false;
   var isDOM=document.getElementById?true:false;
   var isNS4=document.layers?true:false;

  if (isDOM)
  {
    if (_h=='s') { document.getElementById(_w).style.display = 'block'; document.getElementById(_w).style.visibility='visible'; }
    if (_h=='h') { document.getElementById(_w).style.display = 'none'; document.getElementById(_w).style.visibility='hidden'; }
  }
  else if (isIE) {
    if (_h=='s') { eval("document.all."+_w+".style.display='block';"); eval("document.all."+_w+".style.visibility='visible';"); }
    if (_h=='h') { eval("document.all."+_w+".style.display='none';"); eval("document.all."+_w+".style.visibility='hidden';"); }
  }
  else if(isNS4)
  {
    if (_h=='s') { eval("document.layers['"+_w+"'].display='block';"); eval("document.layers['"+_w+"'].visibility='show';"); }
    if (_h=='h') { eval("document.layers['"+_w+"'].display='none';"); eval("document.layers['"+_w+"'].visibility='hide';"); }
  }
}

function SubscribeNews() {

   var d=document.fsub;
   var nome=d.fnome.value;
   var mail=d.fmail.value;

   if (nome==null || nome=="") {alert('Indique o nome.');return;}

   apos=mail.indexOf("@")
   dotpos=mail.lastIndexOf(".")
   if (apos<1||dotpos-apos<2) {alert('E-mail inválido.');return;}

   d.submit();

   }
   
function SubscribeNewsEn() {

   var d=document.fsub;
   var nome=d.fnome.value;
   var mail=d.fmail.value;

   if (nome==null || nome=="") {alert('Enter the name.');return;}

   apos=mail.indexOf("@")
   dotpos=mail.lastIndexOf(".")
   if (apos<1||dotpos-apos<2) {alert('Invalid Email.');return;}

   d.submit();

   }