function swaponh()   {  document.navh.src="img/navhover.gif";  }
  function swapoffh()  {  document.navh.src="img/navh.gif";   }
  function swaponna()  {  document.navna.src="img/navnaover.gif";  }
  function swapoffna() {  document.navna.src="img/navna.gif";       }
  function swaponjc()   {  document.navjc.src="img/navjcover.gif";  }
  function swapoffjc()  {  document.navjc.src="img/navjc.gif";   }
  function swapong()   {  document.navg.src="img/navgover.gif";  }
  function swapoffg()  {  document.navg.src="img/navg.gif";   }
  function swaponp()   {  document.navp.src="img/navpover.gif";  }
  function swapoffp()  {  document.navp.src="img/navp.gif";   }
  function swaponsc()  {  document.navsc.src="img/navscover.gif";  }
  function swapoffsc() {  document.navsc.src="img/navsc.gif";   }
  function swapons()   {  document.navs.src="img/navsover.gif";  }
  function swapoffs()  {  document.navs.src="img/navs.gif";   }
  function swaponfun()   {  document.navfun.src="img/navfunover.gif";  }
  function swapofffun()  {  document.navfun.src="img/navfun.gif";   }
  function swaponcu()  {  document.navcu.src="img/navcuover.gif";  }
  function swapoffcu() {  document.navcu.src="img/navcu.gif";   }