function setSidebarHeight() {
  var content_height = $('.main_content').eq(0).outerHeight();
  if ($('.sidebar').eq(0).outerHeight() <= content_height) $('.sidebar').css({height: content_height});
  //alert('setSidebarHeight');
};

$(document).ready(function () {
  $('#login_link').bind("click", function(){
    $('#login_popup_form').fadeIn('def', function () { 
      $('#login_email_address').focus(); 
    });
    return false;
  });
  
  $('#login_popup_close').bind("click", function(){
    $('#login_popup_form').animate({ height:'0px', opacity: 0, display:'none' });
    $('#login_popup_form').css({height:'auto', opacity:100});
    return false;
  });
  
  setSidebarHeight();
});