  <!--
    function init() {
      IE = (document.all)
      NC = (document.layers)
      Opera = (document.getElementById)
    }

    function hiddenLayer() {
      init();
      if(IE) eval('document.all["descr"].style.display = "none"')
      if(NC) eval('document.layers["descr"].display = "none"')
      if(Opera) eval('document.getElementById("descr").style.display = "none"')
    }

    function showLayer() {
      init();
      if(IE) eval('document.all["descr"].style.display = "inline"')
      if(NC) eval('document.layers["descr"].display = "inline"')
      if(Opera) eval('document.getElementById("descr").style.display = "inline"')
    }

    function hiddenLayer1() {
      init();
      if(IE) eval('document.all["descr1"].style.display = "none"')
      if(NC) eval('document.layers["descr1"].display = "none"')
      if(Opera) eval('document.getElementById("descr1").style.display = "none"')
    }

    function showLayer1() {
      init();
      if(IE) eval('document.all["descr1"].style.display = "inline"')
      if(NC) eval('document.layers["descr1"].display = "inline"')
      if(Opera) eval('document.getElementById("descr1").style.display = "inline"')
    }

    function hiddenLayer2() {
      init();
      if(IE) eval('document.all["descr2"].style.display = "none"')
      if(NC) eval('document.layers["descr2"].display = "none"')
      if(Opera) eval('document.getElementById("descr2").style.display = "none"')
    }

    function showLayer2() {
      init();
      if(IE) eval('document.all["descr2"].style.display = "inline"')
      if(NC) eval('document.layers["descr2"].display = "inline"')
      if(Opera) eval('document.getElementById("descr2").style.display = "inline"')
    }

    function hiddenLayer3() {
      init();
      if(IE) eval('document.all["descr3"].style.display = "none"')
      if(NC) eval('document.layers["descr3"].display = "none"')
      if(Opera) eval('document.getElementById("descr3").style.display = "none"')
    }

    function showLayer3() {
      init();
      if(IE) eval('document.all["descr3"].style.display = "inline"')
      if(NC) eval('document.layers["descr3"].display = "inline"')
      if(Opera) eval('document.getElementById("descr3").style.display = "inline"')
    }

    function hiddenLayer4() {
      init();
      if(IE) eval('document.all["descr4"].style.display = "none"')
      if(NC) eval('document.layers["descr4"].display = "none"')
      if(Opera) eval('document.getElementById("descr4").style.display = "none"')
    }

    function showLayer4() {
      init();
      if(IE) eval('document.all["descr4"].style.display = "inline"')
      if(NC) eval('document.layers["descr4"].display = "inline"')
      if(Opera) eval('document.getElementById("descr4").style.display = "inline"')
    }

    function hiddenLayer5() {
      init();
      if(IE) eval('document.all["descr5"].style.display = "none"')
      if(NC) eval('document.layers["descr5"].display = "none"')
      if(Opera) eval('document.getElementById("descr5").style.display = "none"')
    }

    function showLayer5() {
      init();
      if(IE) eval('document.all["descr5"].style.display = "inline"')
      if(NC) eval('document.layers["descr5"].display = "inline"')
      if(Opera) eval('document.getElementById("descr5").style.display = "inline"')
    }

    function hiddenLayer6() {
      init();
      if(IE) eval('document.all["descr6"].style.display = "none"')
      if(NC) eval('document.layers["descr6"].display = "none"')
      if(Opera) eval('document.getElementById("descr6").style.display = "none"')
    }

    function showLayer6() {
      init();
      if(IE) eval('document.all["descr6"].style.display = "inline"')
      if(NC) eval('document.layers["descr6"].display = "inline"')
      if(Opera) eval('document.getElementById("descr6").style.display = "inline"')
    }
  //-->