判断是否安装flash player及当前版本的JS代码

  function flashChecker() {
    var hasFlash = 0;　　　　 //是否安装了flash
    var 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");