function getradiovalue( radioname ) {
   //alert( arguments.callee.name + " :: radioname="+radioname );
   var radioele      = document.getElementsByName( radioname );
   var radiovalue    = "not checked";
   //alert( "len=" + radioele.length );
   for( i = 0; i < radioele.length; i++) {
      //alert( arguments.callee.name + " :: i=" + i + " value=" + radioele[ i ].value );
      if( radioele[ i ].checked ) {
         radiovalue = radioele[ i ].value;
         break;
      }
   }
   //alert( "retval=" + radiovalue );
   return radiovalue;
}

function getoptionvalue( optioname ) {
   //alert( arguments.callee.name + " :: optioname="+optioname );
   var optionele        = document.getElementsByName( optioname )[ 0 ];
   var optionvalue      = optionele.value;
   //alert( "retval=" + optionvalue );
   return optionvalue;
}

function showhideall() {
   var curgender        = getoptionvalue( 'row[geschlecht]'        );
   var curusum          = getradiovalue( 'row[jugendsumme]'        );
   var curdsb           = getradiovalue( 'row[dsbvergleich]'       );
   var curland          = getradiovalue( 'row[landesvergleich]'    );
   var curbezirk        = getradiovalue( 'row[bezirksvergleich]'   );
   $( ".rowgw").css("display",    "table-row" );
   $( ".rowgm").css("display",    "table-row" );
   $( ".rowgsum").css("display",  "table-row" );
   showdiv( 'bezirksvergleich',  curbezirk );
   showdiv( 'landesvergleich',   curland );
   showdiv( 'dsbvergleich',      curdsb );
   showhideusum( curusum, curgender );
}

function hidegender( choice ) { // aufruf mit choice=mws/mw/s/m/w
   //alert( arguments.callee.name + " :: choice="+choice );
   if ( choice == "mws" ) {
      return;
   }
   if ( choice == "mw" ) {
      $( ".rowgsum" ).css( "display", "none" );
      return;
   }
   if ( choice == "m" ) {
      $( ".rowgw").css("display", "none" );
      $( ".rowgsum").css("display", "none" );
      return;
   }
   if ( choice == "w" ) {
      $( ".rowgm").css("display", "none" );
      $( ".rowgsum").css("display", "none" );
      return;
   }
   if ( choice == "s" ) {
      $( ".rowgw").css("display", "none" );
      $( ".rowgm").css("display", "none" );
      return;
   }
   alert( arguments.callee.name + " :: choice is invalid=[" + choice + "]" );
   return;
}

function showhideusum( choiceu, choicegender ) { // aufruf mit u25 oder u18 oder u-
   //alert( arguments.callee.name + " :: choiceu=" + choiceu + " choicegender=" + choicegender );
   if ( choiceu == "u18" ) {
      $( ".rowu25sum").css("display", "none" );
      $( ".rowu18sum").css("display", "table-row" );
      hidegender( choicegender );
      return;
   }
   if ( choiceu == "u25" ) {
      $( ".rowu18sum").css("display", "none" );
      $( ".rowu25sum").css("display", "table-row" );
      hidegender( choicegender );
      return;
   }
   if ( choiceu == "u-" ) {
      $( ".rowu18sum").css("display", "none" );
      $( ".rowu25sum").css("display", "none" );
      return;
   }
   alert( arguments.callee.name + " :: choice is invalid=[" + choice + "]" );
   return;
}

function showdiv( div, choice ) { // aufruf mit j/n
   //alert( arguments.callee.name + " :: div="+div+" choice="+choice );
   if ( choice == "j" ) {
      $( "#div-"+div ).css("display", "block" );
      return;
   }
   if ( choice == "n" ) {
      $( "#div-"+div ).css("display", "none" );
      return;
   }
   alert( arguments.callee.name + " :: choice is invalid=[" + choice + "]" );
   return;
}