Redmine

function findWatchers(checking,searchtext){

  if(checking.text().toLowerCase().indexOf(searchtext) > -1){

    checking.removeClass("hidden").addClass("visible");

  }

}

$(document).ready(function(){

  $('#watchers_filter').keyup(function(e){

    var searchtext = $(this).val().toLowerCase();

    var elements = $('#watchers_inputs > label');

    elements.not('.hidden').addClass('hidden');

    elements.each(function(){

      findWatchers($(this),searchtext);

    })

  });

  $('#mark_all_watchers').click(function(){

    $('#watchers_inputs > label').not('.hidden').children('input:checkbox:not(:checked)').attr('checked','checked');

  });

});