function nTabs(thisObj,Num){
if(thisObj.className == "active")return;
var tabObj = thisObj.parentNode.id;
var tabList = document.getElementById(tabObj).getElementsByTagName("li");
for(i=0; i <tabList.length; i++)
{
  if (i == Num)
  {
   thisObj.className = "active"; 
      document.getElementById(tabObj+"_Content"+i).style.display = "block";
  }else{
   tabList[i].className = "normal"; 
   document.getElementById(tabObj+"_Content"+i).style.display = "none";
  }
} 
}


function nTabs1(thisObj,Num){
if(thisObj.className == "active")return;
var tabObj = thisObj.parentNode.id;
var tabList = document.getElementById(tabObj).getElementsByTagName("span");
for(i=0; i <tabList.length; i++)
{
  if (i == Num)
  {
   thisObj.className = "tit2"; 
      document.getElementById(tabObj+"_Content"+i).style.display = "block";
  }else{
   tabList[i].className = "tit"; 
   document.getElementById(tabObj+"_Content"+i).style.display = "none";
  }
} 
}


function nTabs2(thisObj,Num){
if(thisObj.className == "active")return;
var tabObj = thisObj.parentNode.id;
var tabList = document.getElementById(tabObj).getElementsByTagName("span");
for(i=0; i <tabList.length; i++)
{
  if (i == Num)
  {
   thisObj.className = "tit_2"; 
      document.getElementById(tabObj+"_Content"+i).style.display = "block";
  }else{
   tabList[i].className = "tit1_2"; 
   document.getElementById(tabObj+"_Content"+i).style.display = "none";
  }
} 
}


//µÇ½¿ò

function secBoard(n)

{

for(i=0;i<menu.childNodes.length;i++)
menu.childNodes[i].className="sec1";
menu.childNodes[n].className="sec2";

for(i=0;i<main.childNodes.length;i++)
main.childNodes[i].style.display="none";
main.childNodes[n].style.display="block";

}