JavaScript检测flash player的版本号

1: function getFlashVersion() {

       2:     var flashVer = NaN;

       3:     var ua = navigator.userAgent;

       4:  

       5:     if (window.ActiveXObject) {

       6:         var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');

       7:  

       8:         if (swf) {

       9:             flashVer = Number(swf.GetVariable('$version').split(' ')[1].replace(/\,/g, '.').replace(/^(\d+\.\d+).*$/, "$1"));

      10:         }

      11:     } else {

      12:         if (navigator.plugins && navigator.plugins.length > 0) {

      13:             var swf = navigator.plugins['Shockwave Flash'];

      14:  

      15:             if (swf) {

      16:                 var arr = swf.description.split(' ');

      17:                 for (var i = 0, len = arr.length; i < len; i++) {

      18:                     var ver = Number(arr[i]);

      19:  

      20:                     if (!isNaN(ver)) {

      21:                         flashVer = ver;

      22:                         break;

      23:                     }

      24:                 }

      25:             }

      26:         }

      27:     }

      28:  

      29:     return flashVer;

      30: }

      31:  

      32:  

      33: var flashVer = getFlashVersion();

      34:  

      35: if (!isNaN(flashVer)) {

      36:  

      37:     document.write('当前flash player 的版本：' + flashVer);    

      38:  

      39: } else {

      40:     document.write('您尚未安装flash播放器');

      41: }