判断UpLoader是否安装了Flash

 var flashVersion = (function() {            var version;            try {                version = navigator.plugins['Shockwave Flash'];                version = version.description;            } catch (ex) {                try {                    version = new ActiveXObject('ShockwaveFlash.ShockwaveFlash')                        .GetVariable('$version');                } catch (ex2) {                    version = '0.0';                }            }            version = version.match(//d+/g);            return parseFloat(version[0] + '.' + version[1], 10);        })(),        supportTransition = (function() {            var s = document.createElement_x('p').style,                r = 'transition' in s ||                    'WebkitTransition' in s ||                    'MozTransition' in s ||                    'msTransition' in s ||                    'OTransition' in s;            s = null;            return r;        })(),        // WebUploader实例        uploader;    if (!WebUploader.Uploader.support('flash') && WebUploader.browser.ie) {        // flash 安装了但是版本过低。        if (flashVersion) {                    } else {            // $wrap.html('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0"><img alt="get flash player" src="http://www.adobe.com/macromedia/style_guide/images/160x41_Get_Flash_Player.jpg" /></a>');            art.dialog.confirm('你还没安装Flash,请安装？', function () {                window.open('http://www.adobe.com/go/getflashplayer', '_blank');            }, function () {                //art.dialog.tips('执行取消操作');            });            //showTips('<a href="http://www.adobe.com/go/getflashplayer" target="_blank" border="0">你还没安装Flash！请安装！</a>');            return;        }    } else if (!WebUploader.Uploader.support()) {        showError('Web Uploader 不支持您的浏览器！');        return;

    }