if ((navigator.appName == "Microsoft Internet Explorer" && navigator.appVersion.indexOf("Mac") == -1 && navigator.appVersion.indexOf("3.1") == -1) || (navigator.plugins && navigator.plugins["Shockwave Flash"]) || navigator.plugins["Shockwave Flash 2.0"]){ // This is where JS writes your Flash OBJECT code if the plugin is present document.write( '

'); } else{ // This is where JS writes your NON Flash version code - you could add a redirect here to your HTML version. document.write('

'); }