js判断flash是否安装及版本

 

<script type="text/javascript" language="JavaScript">
//Powered By smvv @hi.baidu.com/smvv21
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;
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");
</script>