javascript获取flash版本号的方法

function flashChecker() {
 var hasFlash = 0; //是否安装了flash
 var flashVersion = 0; //flash版本
 var isIE =/*@cc_on!@*/0; //是否IE浏览器
 if (isIE) {
 var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
 if (swf) {
 hasFlash = 1;
 flashVersion = swf.GetVariable("$version");
 }
 } else {
 if (navigator.plugins && navigator.plugins.length > 0) {
 var swf = navigator.plugins["Shockwave Flash"];
 if (swf) {
 hasFlash = 1;
 flashVersion = swf.description.split(" ");
 }
 }
 }
 return {
 f: hasFlash,
 v: flashVersion
 };
}
 
var fls = flashChecker();
if (fls.f) document.write("您安装了flash,当前flash版本为: " + fls.v + ".x");
else document.write("您没有安装flash");

function getFlashVersion() {
 var flashVer = NaN;
 var ua = navigator.userAgent;
 
 if (window.ActiveXObject) {
 var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');
 
 if (swf) {
 flashVer = Number(swf.GetVariable('$version').split(' ')[1].replace(/,/g, '.').replace(/^(d+.d+).*$/, "$1"));
 }
 } else {
 if (navigator.plugins && navigator.plugins.length > 0) {
 var swf = navigator.plugins['Shockwave Flash'];
 
 if (swf) {
 var arr = swf.description.split(' ');
 for (var i = 0, len = arr.length; i < len; i++) {
 var ver = Number(arr[i]);
 
 if (!isNaN(ver)) {
 flashVer = ver;
 break;
 }
 }
 }
 }
 }
 return flashVer;
 }
 var flashVer = getFlashVersion();
 if (!isNaN(flashVer)) {
 document.write('当前flash player 的版本：' + flashVer); 
 } else {
 document.write('您尚未安装flash播放器');
}