script
Syntax:
<?script [type="text/javascript"] [src="''uri''"] [charset="''encoding''"]
[content="''javascript snippet''"] [if="..."] [unless="..."]?>
It tells ZK to generate a <script>
inside <head>
.
`after ZK default JavaScript and CSS files. Thus, it can be used to override what is defined in ZK default JavaScript code. Currently, only HTML-based clients (so-called browsers) support it. Furthermore, an HTML SCRIPT tag is generated for each of these declarations.
You can specify whatever attributes you like; it is up to the browser to
interpret. ZK only evaluates the if
and unless
attributes, and
encodes the URI of the href
and src
attribute (by use of
org.zkoss.zk.ui.Execution#encodeURL(java.lang.String)).
So you can specify an absolute or relative path. ZK generates all other
attributes directly to the client.
<?script src="/js/foo.js"?>
<?script content="var foo = true; if (zk.ie) doSomething();"?>
<window title="My App">
My content
</window>
As shown above, the attribute value could span multiple lines.
Alternatives
Alternatively, you could use the script component to embed JavaScript code. The script component supports more features such as defer, but it has some memory footprint at the server (since it is a component).
Limitation: Ignored by Inclusion
Notice that these header directives are effective only when you visit
the page directly. In other words, they are ignored if a page is
included by another page with