javascript检查浏览器是否支持flash,程序输出结果:
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<script>
function flashChecker() {
var hasFlash = 0; //是否安装了flash
var flashVersion = 0; //flash版本
if (document.all) {
var swf = new ActiveXObject( 'ShockwaveFlash.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( " " );
for ( var i = 0; i < words.length; ++i) {
if (isNaN(parseInt(words[i]))) continue ;
flashVersion = parseInt(words[i]);
}
}
}
}
return { f: hasFlash, v: flashVersion };
}
var fls = flashChecker();
var s = "" ;
if (fls.f) document.write( "您安装了flash,当前flash版本为: " + fls.v + ".x" );
else document.write( "您没有安装flash" );
</script>
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