// set up search box
$(document).ready(function(){
	
  searchBox = $('#search');
  searchForm = searchBox.parents('form');
  searchBoxEmpty = true;
  
  function blur(){
    if(searchBoxEmpty = !searchBox.attr('value')){
      searchBox.addClass('empty');
      searchBox.attr('value', 'Enter keywords');
    }
  }
  
  function focus(){
    if(searchBoxEmpty){
      searchBox.removeClass('empty');
      searchBox.attr('value', '');
    }
  }
  
  function keyup(){
    searchBoxEmpty = !searchBox.attr('value');
  }
  
  blur();
  searchBox.blur(blur);
  searchBox.focus(focus);
  searchBox.keyup(keyup);
  searchForm.submit(focus);
  
});