function AbreMail(form){
forme = document.getElementById(form);
  if (forme.User.value=='' || forme.Password.value=='') {
    if (forme.User.value=='') alert('O e-mail esta em branco!');
    if (forme.Password.value=='') alert('A senha esta em branco!');
  }else{
    document.normal.login_username.value=forme.User.value;
    document.normal.secretkey.value=forme.Password.value;
    document.corp.login_username.value=forme.User.value;
    document.corp.secretkey.value=forme.Password.value;
    if (forme.User.value.indexOf('@')<0) {
      document.normal.submit();
    }else{
      if (forme.User.value.indexOf('@sinos.net')>=0) {
        document.normal.submit();
      }else{
        document.corp.submit();
      }
    }
		event.returnValue=false;
    forme.User.value='';
    forme.Password.value='';
  }
}
function teste(form){
  alert(document.getElementById(form).User.value);
}