javascript检查浏览器是否支持flash，程序输出结果：

view sourceprint?01 <script>

02 function flashChecker() {

03 var hasFlash = 0; //是否安装了flash

04 var flashVersion = 0; //flash版本

05 if (document.all) {

06 var swf = new ActiveXObject('ShockwaveFlash.ShockwaveFlash');

07 if (swf) {

08 hasFlash = 1;

09 VSwf = swf.GetVariable("$version");

10 flashVersion = parseInt(VSwf.split(" ")[1].split(",")[0]);

11 }

12 } else {

13 if (navigator.plugins && navigator.plugins.length > 0) {

14 var swf = navigator.plugins["Shockwave Flash"];

15 if (swf) {

16 hasFlash = 1;

17 var words = swf.description.split(" ");

18 for (var i = 0; i < words.length; ++i) {

19 if (isNaN(parseInt(words[i]))) continue;

20 flashVersion = parseInt(words[i]);

21 }

22 }

23 }

24 }

25 return { f: hasFlash, v: flashVersion };

26 }

27 var fls = flashChecker();

28 var s = "";

29 if (fls.f) document.write("您安装了flash,当前flash版本为: " + fls.v + ".x");

30 else document.write("您没有安装flash");

31 </script>

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