function activateSect(ID, sectn,allowsw) {
 if(sectn==null)sectn='sect';
 if(allowsw==null)allowsw=0;
 var sid = 1;
 while(1) {
  var sect = document.getElementById(sectn+sid);
  if(sect==null || typeof(sect)=='undefined')break;

  if(sid==ID) {
   if(allowsw && sect.style.display=='block')
    sect.style.display='none';
   else
    sect.style.display='block';
  } else {
   sect.style.display='none';
  }
  sid++;
 }
 window.navigate('#p'+sectn+ID,'_self');
}