function popWin(place, width, height)
    {
      var attr, junk;
      attr = 'scrollbars=no,status=no,width=' + width + ',height=' + height;
      junk = window.open('','', attr);
      junk.location.href = place;
    }

    function imgOn(name)
    {
      if (document.images)
      {
        document[name].src = eval(name + "on.src");
      }
    }

    function imgOff(name)
    {
      if (document.images)
      {
        document[name].src = eval(name + "off.src");
      }
    }

    function preloadImages()
    {
      if (document.images)
      {
        bioon          = new Image(); biooff          = new Image();
        indexbioon     = new Image(); indexbiooff     = new Image();
        portfolioon    = new Image(); portfoliooff    = new Image();
        contacton      = new Image(); contactoff      = new Image();
        indexcontacton = new Image(); indexcontactoff = new Image();
        
        bioon.src          = "_img/bioon.gif";          biooff.src          = "_img/biooff.gif";
        indexbioon.src     = "_img/indexbioon.gif";     indexbiooff.src     = "_img/indexbiooff.gif";
        portfolioon.src    = "_img/portfolioon.gif";    portfoliooff.src    = "_img/portfoliooff.gif";
        contacton.src      = "_img/contacton.gif";      contactoff.src      = "_img/contactoff.gif";
        indexcontacton.src = "_img/indexcontacton.gif"; indexcontactoff.src = "_img/indexcontactoff.gif";
      }
    }
    
    preloadImages();