[jQuery] jQuery (1.2.6) and IE7 problem

[Charlie22]

Hi all, I have problem with these pages, check menu "Rules" and then
submenu for rules. Under FF3 it works OK, but under IE7 it lost data
from cache or what. Deos can somobody help me. Thx in advance.

jQuery codes

Menu:

$(function(){
        $("ul#menu li a:first").addClass('active');
   $("ul#menu li a").click(function(){
                $("ul#menu li a:only-child").removeClass('active');
                $(this).addClass('active');
                var href = $(this).attr('href');
                $('#obsah>*').remove();
                $.ajax({
                                        url: href,
                                        success: function(html){
                                                                
$('#obsah').append(html);
                                                                }
                                 });
                return false;
  });
});


Submenu:

$(function(){
                          $('#menu2 li a:first').addClass('active2');
                          $('#rkontys>*').css('display','none');
                          $('#rGeneral').css('display','');
                          $('#menu2 li a').click(function(){
                                         var href1=$(this).attr('href');
                                         //$('#obsah>*').remove();
                                         $('#menu2 li 
a:only-child').removeClass('active2');
                                         $(this).addClass('active2');
                                         $('#rkontys>*').css('display','none');
                                         $('#'+href1).css('display', '');
                                         if (href1=='complete'){
                                         $('#rkontys>*').css('display', '')};
                                         return false;
                                         });
                          });