Javascript实例教程(4-1)

时间： 2021-07-31 作者：daque

运用javascript探测搜集欣赏器的插件步调运用javascript不妨探测在搜集欣赏器中的插件步调，然而犯得着指出的能否，它只在netscape navigator灵验。底下的代码表露了还好吗探测audio/midi典型插件步调：

var can_play = false;

var mimetype = 'audio/midi';

if (navigator.mimetypes) {

if (navigator.mimetypes[mimetype] != null) {

if (navigator.mimetypes[mimetype]

.enabledplugin != null) {

can_play = true;

document.write('<embed src="sound.mid"

hidden=true loop=false autostart=false>');

}

function playsound() {

if (document.embeds && can_play) {

if (navigator.appname == 'netscape')

document.embeds[0].play();

else

document.embeds[0].run();

}

function stopsound() {

if (document.embeds && can_play)

document.embeds[0].stop();

}

//--></script>

那在网页上怎样挪用呢？以次是简直代码：

<a href="#" onmouseover="playsound()" onmouseout=

"stopsound()"><img src="http://edu.chinaz.com/get/website/javascript/image.gif" width="100"

height="100" border="0"></a>

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