function toggle( modpage ) {
 switch ( modpage ) {
  case '_info' :
  case 'torrent_info' :
  case 'torrent_peers' :
  case 'torrent_trackers' : {
   if ( document.getElementById( 'changethrottleform' ) != null ) {
    document.getElementById( 'throttleupinput' ).style.display = 'none';
    document.getElementById( 'throttledowninput' ).style.display = 'none';
    document.getElementById( 'tsubmit' ).style.display = 'none';

    document.getElementById( 'throttleup' ).style.display = '';
    document.getElementById( 'throttledown' ).style.display = '';
   }

   break;
  }
  case 'serverinfo_info' : {
   if ( document.getElementById( 'changethrottleform' ) != null ) {
    document.getElementById( 'throttleupinput' ).style.display = 'none';
    document.getElementById( 'throttledowninput' ).style.display = 'none';
    document.getElementById( 'tsubmit' ).style.display = 'none';

    document.getElementById( 'throttleup' ).style.display = '';
    document.getElementById( 'throttledown' ).style.display = '';
   }

   document.getElementById( 'changedht' ).style.display = '';
   document.getElementById( 'changedhtselect' ).style.display = 'none';

   break;
  }
  case '_info_restore' : {
   document.getElementById( 'throttleupinput' ).style.display = '';
   document.getElementById( 'throttledowninput' ).style.display = '';
   document.getElementById( 'tsubmit' ).style.display = '';

   document.getElementById( 'throttleup' ).style.display = 'none';
   document.getElementById( 'throttledown' ).style.display = 'none';

   break;
  }
  case 'serverinfo_info_restore' : {
   if ( document.getElementById( 'changethrottleform' ) != null ) {
    document.getElementById( 'changedht' ).style.display = 'none';
    document.getElementById( 'changedhtselect' ).style.display = '';
   }

   break;
  }
  case 'addtorrent_info' : {
   document.getElementById( 'torrenturl' ).style.display = 'none';

   break;
  }
  case 'torrent_files' : {
   var uls = document.getElementsByTagName( 'ul' );
   for ( i = 0; i < uls.length; i++ ) {
    var atts = uls.item( i ).attributes;
    for ( j = 0; j < atts.length; j++ ) {
     if ( atts[j].nodeName == 'class' && atts[j].nodeValue == 'directory' ) {
      uls.item( i ).style.display='none';
     }
    }
   }

   document.getElementById( 'throttleupinput' ).style.display = 'none';
   document.getElementById( 'throttledowninput' ).style.display = 'none';
   document.getElementById( 'tsubmit' ).style.display = 'none';

   document.getElementById( 'throttleup' ).style.display = '';
   document.getElementById( 'throttledown' ).style.display = '';

   break;
  }
 }
}