其实也没什么好表达的，找了个例子：
<script type="text/vbscript"><br /> Private i, x, FlashControlVersion<br /> On Error Resume Next<br /> x = null<br /> FlashControlVersion = 0<br /> var Flashmode<br /> FlashMode = False<br /> var do_dw_var<br /> var browser_flash_version<br /> For i = 9 To 5 Step -1<br /> Set x = CreateObject("ShockwaveFlash.ShockwaveFlash." & i)<br /> FlashControlInstalled = IsObject(x)<br /> If FlashControlInstalled Then<br /> FlashControlVersion = CStr(i)<br /> Exit For<br /> End If<br /> Next<br /> x = null<br /> FlashMode = (FlashControlVersion >= 6)<br /> do_dw_var = FlashMode<br /> browser_flash_version = FlashControlVersion<br /> </script><br /> <script type="text/javascript"><br /> if(do_dw_var){ //如果检测浏览器支持Flash,就显示Flash<br /> document.write(‘<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0" width="635" height="600">’);<br /> document.write(‘<param name="movie" value="uploadimg/2005513171842150.swf" />’);<br /> document.write(‘<param name="quality" value="high" />’);<br /> document.write(‘<param name="wmode" value="transparent">’);<br /> document.write(‘<embed src="flash.swf" width="400" height="400" pluginspage="http://www.macromedia.com/go/getflashplayer" type="application/x-shockwave-flash" name="fma"></embed>’);<br /> document.write(‘</object>’);<br /> }<br /> if(!do_dw_var){ //如果检测浏览器不支持Flash,就显示一张指定的图片<br /> document.write(‘<img src="http://www.cfn.com.cn/web/images/top-logo.gif" alt="不支持Flash是显示的图片" width="120" height="90" border="0" />’);<br /> }<br /> </script><br />
