function show()
{
   document.getElementById('subnav2').style.visibility = "visible";
}

function hilite()
{
   /* if(idname != "bronze")
   {
      document.getElementById('subnav2').style.visibility = "hidden";
   } */
   document.getElementById('pubart').className = "subnavlink";
   document.getElementById('concrete').className = "subnavlink";
   document.getElementById('paper').className = "subnavlink";
   document.getElementById('corporate').className = "subnavlink";
   document.getElementById('bronze').className = "subnavlinkclicked";
}

function hilitesub(idname)
{
   document.getElementById('fig').className = "subnavlink";
   document.getElementById('story').className = "subnavlink";
   document.getElementById('nature').className = "subnavlink";
   document.getElementById(idname).className = "subnavlinkclicked";
}

function showtitle(idname)
{
   document.getElementById(idname).style.visibility = "visible";
}

function hidetitle(idname)
{
   document.getElementById(idname).style.visibility = "hidden";
}