//////////////////////////
// JavaScript Document
function nTabs(thisObj,Num){
if(thisObj.className == "hover")return;
var tabsObj = thisObj.parentNode.id;
var tabsList = document.getElementById(tabsObj).getElementsByTagName("span");
for(i=0; i <tabsList.length; i++)
{
  if (i == Num)
  {
   thisObj.className = "hover"; 
      document.getElementById(tabsObj+"_"+i).style.display = "block";
  }else{
   tabsList[i].className = "none"; 
   document.getElementById(tabsObj+"_"+i).style.display = "none";
  }
} 
}