JS判断是否安装flash player及当前版本

function flashChecker() {var hasFlash = 0;　　　　 //是否安装了flashvar flashVersion = 0;　　 //flash版本if(document.all) {var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');if(swf) {hasFlash = 1;VSwf = swf.GetVariable("$version");flashVersion = parseInt(VSwf.split(" ")[1].split(",")[0]);}} else {if(navigator.plugins && navigator.plugins.length > 0) {var swf = navigator.plugins["Shockwave Flash"];if(swf) {hasFlash = 1;var words = swf.description.split(" ");for(var i = 0; i < words.length; ++i) {if(isNaN(parseInt(words[i]))) continue;flashVersion = parseInt(words[i]);}}}}return {f: hasFlash,v: flashVersion};
}var fls = flashChecker();
var s = "";
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");