function switchStyle(Id,T){
   Div=document.getElementById(Id);
   if( Div.style.display=='block'){
     Div.style.display='none';
     T.innerHTML='Show abstact';
   }
   else{
     Div.style.display='block';
     T.innerHTML='Hide abstact';
   }
}

function entsub(event,IdForm){
  if (event && event.which == 13)
    submitForm(IdForm);
  else
    return true;
}

function submitForm(IdForm){
   F=document.getElementById(IdForm);
   F.submit();
}