Quick Simple Way to Show/Hide with a Checkbox using jQuery

$( function() {    
 
  function toggleCheckbox( trigger, hidethese )
  {
    if ( $( trigger ).attr("checked") )
    {
      $( hidethese ).hide();
    }
    else
    {
      $( hidethese ).show();
    }
  }
 
  // jQuery object that has your checkbox
  var triggerCheckbox = $( "#showPreonDescription" );
 
  // jQuery object for collection of elements you want to hide
  // For this example, I could've also just done #panel by itself
  // to hide everything
  var panelsToHide = $("#subpanel,#maincontent,#nav");  
 
  // Call the function on click.
  triggerCheckbox.click(
    function ()
    {
      toggleCheckbox( triggerCheckbox, panelsToHide );
    }
  );
});