IE6 bug when big volume data is received using ajax

Variable "msg" contains obtained informathion, but method .html doesn't insert it in the page

Example:

$(document).ready(function(){

  $('.headerSearch #search_submit').click(
      function()
      {
        var string = $('.headerSearch #search_field').val();
        if(trim(string).length > 0)
        {
          $('.headerSearch #search_submit').attr('disabled', '1');
          $.ajax({
              type: 'POST',
              url: 'search.php',
              data: 'string=' + string,
              success: function(msg){ 
        $('.headerSearch #search_submit').removeAttr('disabled');
        $('#page').html(msg);}
                 })

        }
        else
        {
          alert('String is small');
        }
    return false;
    }
  );
});