function toggleMe(a){
    var next=document.getElementById(a);
    var b=new String();
    b= a-1;
    var prev=document.getElementById(b);
    if(!next)return true;
    if(next.style.display=="none"){
      next.style.display="block"
      prev.style.display="none"
      window.scrollTo(0,0);
    } else {
      next.style.display="none"
    }
    return true;
  }