问在IE6中滑动到下拉列表后面的jQuery UI模式对话框

EN

$(document).ready(function(){
    $("#dialog").dialog({
      bgiframe: true, autoOpen: false,
      overlay: { backgroundColor: '#000', opacity: 0 },
      width: 400,
      height: 200,
      modal: true,
      buttons: {
                'Delete all items in recycle bin': function() {
                    $(this).dialog('close');},
                Cancel: function() {$(this).dialog('close');}
            }
    });

    $("#jClick").click(function(event){
        $("#dialog").dialog('open');
        event.preventDefault();
    });

});