javascript检查浏览器是否支持flash的实现代码

javascript检查浏览器是否支持flash，程序输出结果：



<script>
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");
</script>





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