// JavaScript Document
function isMatch(str1,str2){ 
   var index = str1.indexOf(str2); 
   if(index==-1) return false; 
   return true; 
} 
function ResumeError(){ 
  return true; 
} 
window.onerror = ResumeError; 
function doClick(o){ 
   o.className="nav_current"; 
   var j; 
   var id; 
   var e; 
   for(var i=2;i<=9;i++){ 
     id ="nav"+i; 
     j = document.getElementById(id); 
     e = document.getElementById("sub"+i); 
     if(id != o.id){ 
       j.className="nav_link"; 
       e.style.display = "none"; 
     }else{ 
        e.style.display = "block"; 
        
       
       //  e.style.mozOpacity="0.5"; 
        
        
        
        //e.style.opacity="0.5";
        //e.style.filter="alpha(opacity=0.5)";  
     }   
   } 
}