Code for accessing the iframe Document Object in html in js [IE6, IE7, IE8, FF]

<Iframe id = "myframe"> </iframe>
W3C standards tell us that the document object can be returned through the contentDocument attribute of the Dom object.
That is
Copy codeThe Code is as follows:
Doc = document. getElementById ('myframework'). contentDocument


However, IE6 and IE7 are not supported after tests, and IE8 is supported.
In IE, you need to access
Copy codeThe Code is as follows:
Document.frames['myframe').doc ument;


The cross-browser solution is,
ContentWindow attribute, which is a read-only attribute and returns the window object of the specified iframe.
Although it is not part of the standard, it is supported by mainstream browsers.
So the cross-browser access to iframe document objects is
Copy codeThe Code is as follows:
Document. getElementById ('myframe'{.content}{doc ument