function inc(name)
{
    var qty = parseInt(document.product[name].value, 10);
    if (isNaN(qty)) { qty = 1; }
    else { qty++; }
    if (qty < 1) { qty = 1; }
    //if (qty > 11) { qty = 10; }
    document.product[name].value = qty;
    return false;
}

function dec(name)
{
    var qty = parseInt(document.product[name].value, 10);
    if (!isNaN(qty) && qty > 1) { qty--; } else { qty = ""; }
    if (qty < 1) { qty = ""; }
    //if (qty > 10) { qty = 10; }
    document.product[name].value = qty;
    return false;
}

function Sim_Sim_Otkroysya(hint_id)
{
 var obj=document.getElementById(hint_id);
 if(obj.style.display=='none')
  obj.style.display='block';
 else
  obj.style.display='none';
}