passing javascript global variable between embeded pages or from main to embed
i have a html page with 2 embed pages
<body>
<embed src ="toolbar.html" type="application/xhtml+xml" width="485px" height="60px">
<embed src="editor.svg" type="image/svg+xml" width="595px" height="842px">
</body>
the first is a toolbar (jquery ui) the second is an xml page with svg in it. both pages have scripts. Is there any way to pass a variable defined in a script from the toolbar to the svg开发者_如何转开发 ?
or if that isn't possible:
is there any way to pass a variable defined in the current document to an embedded page ?
tnx in advance
Turn the
embedelements intoiframeelements, don't forget the close tags.The W3 - Technical Review - HTML 5 - The
embedelement mentionsThe embed element represents an integration point for an external (typically non-HTML) application or interactive content.
so you should rather use
iframeelements instead ofembedelements, which mentions:The iframe element represents a nested browsing context.
in which a browsing context is defined as:
A browsing context is an environment in which Document objects are presented to the user.
You can declaring a global variable in a script you use in the main page.
It is as simple as
var myvariable;You can access the variable from within an iframe using
window.parent.myvariable.The DOM object
window.parentis defined as such:Returns a reference to the parent of the current window or subframe.
If a window does not have a parent, its parent property is a reference to itself.
When a window is loaded in an
<iframe>,<object>, or<frame>, its parent is the window with the element embedding the window.A shortened version is to use
parent.myvariable, aswindowis the root DOM object.Make sure that the domains, protocols and ports of the different documents match.
Unless you want to be presented with a nasty error like:
Unsafe JavaScript attempt to access frame with URL X from frame with URL Y.
Domains, protocols and ports must match.
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