JavaScript memeriksa apakah browser mendukung flash, dan program menghasilkan hasilnya:
<script> function flashChecker () {var hasflash = 0; // adalah flash var flashversion = 0 diinstal; // versi flash if (document.all) {var swf = new ActivexObject ('shockwavefleSh.shockwaveflash'); if (swf) {hasflash = 1; Vswf = swf.getVariable ("$ version"); flashVersion = parseInt (vswf.split ("") [1] .split (",") [0]); }} else {if (navigator.plugins && navigator.plugins.length> 0) {var swf = navigator.plugins ["shockwave flash"]; if (swf) {hasflash = 1; var words = swf.description.split (""); untuk (var i = 0; i <words.length; ++ i) {if (isnan (parseInt (Words [i]))) lanjutkan; flashVersion = parseInt (Words [i]); }}}} return {f: hasflash, v: flashversion}; } var fls = flashChecker (); var s = ""; if (fls.f) document.write ("Anda telah menginstal flash, versi flash saat ini adalah:" + fls.v + ".x"); else document.write ("Anda belum menginstal flash"); </script>