function oc(obj)
{
  obj.style.display = (obj.style.display=="none") ? "" : "none";
}

function findObj( id )
{
    var x;
    if( !( x = document[ id ] ) && document.all ) x = document.all[ id ];
    if( !x && document.getElementById ) x = document.getElementById( id );

    return x;
}