详细说明： javascript写成 ar isIE = (navigator.appVersion.indexOf("MSIE") != -1) ? true : false; var isWin = (navigator.appVersion.toLowerCase().indexOf("win") != -1) ? true : false; var isOpera = (navigator.userAgent.indexOf("Opera") != -1) ? true : false; function ControlVersion() { var version; var axo; var e; // NOTE : new ActiveXObject(strFoo) throws an exception if strFoo isn't in the registry try { // version will be set for 7.X or greater players axo = new ActiveXObject("ShockwaveFlash .ShockwaveFlash.7"); version = axo.GetVariable("$version"); } catch (e) { } if (!version) { try { // version will be set for 6.X players only axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.6"); // installed player is some revision of 6.0 // GetVariable("$version") crashes for versions 6.0.22 through 6.0.29, // so we have to be careful. // default to the first public version version = "WIN 6,0,21,0"; // throws if AllowScripAccess does not exist (introduced in 6.0r47) axo.AllowScriptAccess = "always"; // safe to call for 6.0r47 or greater version = axo.GetVariable("$version"); } catch (e) { } } if (!version) { try { // version will be set for 4.X or 5.X player axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3"); version = axo.GetVariable("$version"); } catch (e) { } } if (!version) { try { // version will be set for 3.X player axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash.3"); version = "WIN 3,0,18,0"; } catch (e) { } } if (!version) { try { // version will be set for 2.X player axo = new ActiveXObject("ShockwaveFlash.ShockwaveFlash"); version = "WIN 2,0,0,11"; } catch (e) { version = -1; } } return version; } // JavaScript helper required to detect Flash Player PlugIn version information function GetSwfVer(){ // NS/Opera version >= 3 check for Flash plugin in plugin array var flashVer = -1; if (navigator.plugins != null && navigator.plugins.length > 0) { if (navigator.plugins["Shockwave Flash 2.0"] || navigator.plugins["Shockwave Flash"]) { var swVer2 = navigator.plugins["Shockwave Flash 2.0"] ? " 2.0" : ""; var flashDescription = navigator.plugins["Shockwave Flash" + swVer2].description; var descArray = flashDescription.split(" "); var tempArrayMajor = descArray[2].split("."); var versionMajor = tempArrayMajor[0]; var versionMinor = tempArrayMajor[1]; var versionRevision = descArray[3]; if (versionRevision == "") { versionRevision = descArray[4]; } if (versionRevision[0] == "d") { versionRevision = versionRevision.substring(1); } else if (versionRevision[0] == "r") { versionRevision = versionRevision.substring(1); if (versionRevision.indexOf("d") > 0) { versionRevision = versionRevision.substring(0, versionRevision.indexOf("d")); } } var flashVer = versionMajor + "." + versionMinor + "." + versionRevision; } } // MSN/WebTV 2.6 supports Flash 4 else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.6") != -1) flashVer = 4; // WebTV 2.5 supports Flash 3 else if (navigator.userAgent.toLowerCase().indexOf("webtv/2.5") != -1) flashVer = 3; // older WebTV supports Flash 2 else if (navigator.userAgent.toLowerCase().indexOf("webtv") != -1) flashVer = 2; else if ( isIE && isWin && !isOpera ) { flashVer = ControlVersion(); } return flashVer; } // When called with reqMajorVer, reqMinorVer, reqRevision returns true if that version or greater is available function DetectFlashVer(reqMajorVer, reqMinorVer, reqRevision) { versionStr = GetSwfVer(); if (versionStr == -1 ) { return false; } else if (versionStr != 0) { if(isIE && isWin && !isOpera) { // Given "WIN 2,0,0,11" tempArray = versionStr.split(" "); // ["WIN", "2,0,0,11"] tempString = tempArray[1]; // "2,0,0,11" versionArray = tempString.split(","); // ['2', '0', '0', '11'] } else { versionArray = versionStr.split("."); } var versionMajor = versionArray[0]; var versionMinor = versionArray[1]; var versionRevision = versionArray[2]; // is the major.revision >= requested major.revision AND the minor version >= requested minor if (versionMajor > parseFloat(reqMajorVer)) { return true; } else if (versionMajor == parseFloat(reqMajorVer)) { if (versionMinor > parseFloat(reqMinorVer)) return true; else if (versionMinor == parseFloat(reqMinorVer)) { if (versionRevision >= parseFloat(reqRevision)) return true; } } return false; } } function AC_AddExtension(src, ext) { if (src.indexOf('?') != -1) return src.replace(/\?/, ext+'?'); else return src + ext; } function AC_Generateobj(objAttrs, params, embedAttrs) { var str = ''; if (isIE && isWin && !isOpera) { str += ' '; } str += ''; } else { str += '
