/******************************************************************************
 * paka-paka
 */


/***************************************
 * functions
 */
function pp_close( pp_body ){
  pp_body.style.display = "none";
  return false;
}


function pp_open( pp_body ){
  pp_body.style.display = "";
  return true;
}


function pp_flip( pp_body ){
  if( pp_body.style.display == "none" )
    return pp_open( pp_body );
  else
    return pp_close( pp_body );
}


function pp_all_close(){ with( document ){
  var i;
  for( i=0; i<pp_body.length; i++ )
    pp_close( pp_body[i] );
}}


function pp_click( obj ){ with( document ){
  var i;

  for( i=0; i<pp_body.length; i++ )
    if( pp_body[i] == obj )
      return pp_close( obj );

  for( i=0; i<pp_head.length; i++ )
    if( pp_head[i] == obj )
      return pp_flip( pp_body[i] );

  return false;
}}


function pp_click_only( obj ){ with( document ){
  pp_all_close();
  return pp_click( obj );
}}