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;

}