flash 在firebox/IE中 提示安装 浏览器是否有flash插件

<div id="divNoFlash" style=" display:none " >
       <h4>
           This page need Adobe Flash Player。</h4>
       <p>
           <a href="http://www.adobe.com/go/getflashplayer">
               <img src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif"
                   alt="Get Adobe Flash Player" width="112" height="33" /></a></p>
   </div>

<script>
       function CheckFlashInstall() {
           var PlayerVersion = [];
           if (navigator.plugins && navigator.mimeTypes.length) {
               var x = navigator.plugins["Shockwave Flash"];
               if (x && x.description) {
                   PlayerVersion = x.description.replace("/([a-zA-Z]|/s)+/", "").replace("/(/s+r|/s+b[0-9]+)/", ".").split(".");
               }
           } else if (navigator.userAgent && navigator.userAgent.indexOf("Windows CE") >= 0) { // if Windows CE
               var axo = 1;
               var counter = 3;
               while (axo) {
                   try {
                       counter++;
                       axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash." + counter);
                       PlayerVersion = [counter, 0, 0];
                   } catch (e) {
                       axo = null;
                   }
               }
           } else { /// Win IE (non mobile)
               /// do minor version lookup in IE, but avoid fp6 crashing issues
               try {
                   var axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.7");
               } catch (e) {
                   try {
                       var axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6");
                       PlayerVersion = [6, 0, 21];
                       axo.AllowScriptAccess = "always";
                   } catch (e) {
                       if (PlayerVersion[0] == 6)
                           return PlayerVersion;
                   }
                   try {
                       axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
                   } catch (e) { }
               }
               if (axo != null) {
                   PlayerVersion = axo.GetVariable("$version").split(" ")[1].split(",");
               }
           }
           return PlayerVersion;
       }
       var ver = CheckFlashInstall();
       if (ver == "") {
           document.getElementById("divNoFlash").style.display = "";
           //document.write("不支持 flash");
       }
       else {
           document.getElementById("divNoFlash").style.display = "none";
           //document.write("支持 flash");
       }
   </script>