function toggleMe(a,b){
  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"
  }
   
}