function rollDownMenu(Id, Type){
  var AreaSum=document.getElementById('menuAreaSum').value;
  var Area=document.getElementById('subMenu'+Id);
  
    /*czy któekolwiek jest klikniête*/
    var Selected=false;
    for(J=1; J<=AreaSum; J++){
      if(document.getElementById('subMenu'+J).style.display=='block'){
        Selected=true;
      }    
    }
  

    for(I=1; I<=AreaSum; I++){
      var Area=document.getElementById('subMenu'+I);
      /* po klikniêciu */
      if(Type=='click'){
        if(Id==I){
          if(Area.style.display=='block'){
            Area.style.display='none';
          }else{
            Area.style.display='block';
          }
        }else{
          Area.style.display='none';
        }     
        /*po najechaniu */
      }else if(Type=='over' && Selected){
        if(Id==I){
          Area.style.display='block';
        }else{
          Area.style.display='none';
        }      
      }
    }
}

function hideRolldownMenu(){
  var AreaSum=document.getElementById('menuAreaSum').value;
    for(J=1; J<=AreaSum; J++){
      document.getElementById('subMenu'+J).style.display='none';    
    }
}