javascript檢查瀏覽器是否支持flash，程序輸出結(jié)果：
view sourceprint?01 <script>
02 function flashChecker() {
03 var hasFlash = 0; //是否安裝了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("您安裝了flash,當(dāng)前flash版本為: " + fls.v + ".x");
30 else document.write("您沒(méi)有安裝flash");
31 </script>
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