function openTabtreat(id)
{
  closeTab();
    eval('document.getElementById("divcontent'+id+'")').style.display="";
     eval('document.getElementById("tabbg'+id+'")').className="tabopen"; 
}
function closeTabtreat()
{
    for(i=1; i<=17; i++)
    {
        if(eval('document.getElementById("divcontent'+i+'")'))
        {
            eval('document.getElementById("divcontent'+i+'")').style.display="none";
            eval('document.getElementById("tabbg'+i+'")').className="tabclose";            
        }
    }
}