切换基于jqueryui的选项卡时参数无效的问题

Here's a page with the issue

要重现错误,请使用ie-单击“方向”选项卡,然后单击其他任何选项卡。

我想做的是:

在页面加载时,什么都不做。但是,当“方向”选项卡加载时-设置地图。就像这样:

$('#tabs').bind('tabsshow', function(event, ui) {
    if (ui.panel.id == "tabs-5") {

        // get map for directions
        var dirMap = new GMap2($("div#dirMap").get(0));
        dirMap.setCenter(new GLatLng(35.79648921414565,139.40663874149323), 12);
        dirMap.enableScrollWheelZoom();
        dirMap.addControl(new PanoMapTypeControl());
        geocoder = new GClientGeocoder();

        $("#dirMap").resizable({
           stop: function() { dirMap.checkResize(); }
        });
        // clear dirText
        $("div#dirMapText").html("");
        dirMap.clearOverlays();

        var polygon = new GPolygon([new GLatLng(35.724496338474104,139.3444061279297),new GLatLng(35.74748750802863,139.3363380432129),new GLatLng(35.75765724051559,139.34303283691406),new GLatLng(35.76545779822543,139.3418312072754),new GLatLng(35.767547103447725,139.3476676940918),new GLatLng(35.75835374997911,139.34955596923828),new GLatLng(35.755149755962755,139.3567657470703),new GLatLng(35.74679090345495,139.35796737670898),new GLatLng(35.74762682821177,139.36294555664062),new GLatLng(35.744422402303826,139.36346054077148),new GLatLng(35.74860206266584,139.36946868896484),new GLatLng(35.735644401200986,139.36843872070312),new GLatLng(35.73843117306677,139.36174392700195),new GLatLng(35.73592308277646,139.3531608581543),new GLatLng(35.72686543236113,139.35298919677734),new GLatLng(35.724496338474104,139.3444061279297)], "#f33f00", 5, 1, "#ff0000", 0.2);dirMap.addOverlay(polygon);

        // load directions
        directions = new GDirections(dirMap, $("div#dirMapText").get(0));
        directions.load("from: Yokota@35.74005964772476,139.37083393335342 to: Ruby International@35.79648921414565,139.40663874149323");

    }
});

究竟是什么导致了这个错误? IE JavaScript调试器声称错误在main.js第139行第28个字符中。(谷歌地图API文件)。这是哪一行:

function zf(a,b){a=a.style;a.width=b.getWidthString();a.height=b.getHeightString()}

有什么想法吗?事先谢谢!