$(document).ready(function() {
 // hides the adv as soon as the DOM is ready
 // (a little sooner than page load)
  $('#options').hide();
  $('#dimensions').hide();
 
 
  // toggles the intro on clicking the noted link  
  $('a#intro_toggle').click(function() {
	$('#intro').show(0);
	$('#options').hide(0);
	$('#dimensions').hide(0);
    return false;
  });
  
 // toggles the options on clicking the noted link  
  $('a#options_toggle').click(function() {
	$('#intro').hide(0);
	$('#options').show(0);
	$('#dimensions').hide(0);
    return false;
  });

 // toggles the dimensions on clicking the noted link  
  $('a#dimensions_toggle').click(function() {
	$('#intro').hide(0);
	$('#options').hide(0);
	$('#dimensions').show(0);
    return false;
  });
});