// JavaScript Document
function getElementID(aID)
{
  return (document.getElementById) ? document.getElementById(aID): document.all[aID];
}

function selectDiv(num){
 for(var ii=1;ii<=6;ii++){
  var divid = "bbslist" + ii;
  if(ii==num)
  {
   if(getElementID(divid))
     getElementID(divid).style.display="block";
  }else{
   if(getElementID(divid))
     getElementID(divid).style.display="none";       
  }
 }
for(var kk=1;kk<=6;kk++){
  var navid = "linav" + kk;
  if(kk==num)
  {
   if(getElementID(navid))
     getElementID(navid).className="on";
  }else{
   if(getElementID(navid))
     getElementID(navid).className="";       
  }
 } 
}