text: var top_=document.getElementById("w0");
  var nav_=document.getElementById("w0-collapse");
  var logo_=nav_.getElementsByTagName("img");
  
  top_.style.background="#379BE9";
  top_.style.border="0px";
  nav_.style.background="#379BE9";
  nav_.style.textAlign="left";
  
  var ul_nav=document.getElementById("w1");
  var li_nav=ul_nav.getElementsByTagName("li");
  var a_nav=ul_nav.getElementsByTagName("a");
  
  function opacity_a(index){
      for(a=0;a<a_nav.length;a++){
          if(a==index){
              a_nav[a].style.opacity=1.0;
          }else{
              a_nav[a].style.opacity=0.5;
          };
      };
  };
  
  for(b=0;b<a_nav.length;b++){
      a_nav[b].index=b;
      a_nav[b].onmouseover=function(){
          opacity_a(this.index);
      };
      a_nav[b].onmouseout=function(){
          opacity_c();
      };
  };
  
  function opacity_c(){
      for(c=0;c<a_nav.length;c++){
          a_nav[c].style.opacity=1.0;
      };
  };
  
  
  
  
  
  
  
  
  
  