function gotobutton(name)
{
  window.location = alnks[name].url;
}

function buttonover(name)
{
  turn(name,name+'IH',von);  
  turn(name,name+'IB',voff);
  turn(name,name+'TH',von);
  turn(name,name+'TB',voff);
}

function buttonout(name)
{
  turn(name,name+'IB',von);
  turn(name,name+'IH',voff);  
  turn(name,name+'TB',von);
  turn(name,name+'TH',voff);
}

function turn(n1,n2,flag)
{
  var elm = null;
  if (document.layers)
  {
    elm = document.layers[n1+'DEF'].document.layers[n2];
    elm.visibility = flag;
  }
  else if (document.all && !document.getElementById)
  {
    elm = document.all[n2];
    elm.style.visibility = flag;
  }
  else if (document.getElementById && document.body.style)
  {
    elm = document.getElementById(n2);
    elm.style.visibility = flag;
  }
}

IFhover = 
  (((navigator.appName == "Netscape") && 
  (parseInt(navigator.appVersion) >= 3 )) || 
  ((navigator.appName == "Microsoft Internet Explorer") && 
  (parseInt(navigator.appVersion) >= 4 ))); 

function IFpreload(img) 
{
  var a=new Image(); a.src=img; return a; 
}