How to set HTML content into an iframe

Question

I have a HTML string

  Hello world
 

and I wan

Answer 1

You could use:

document.getElementById('iframe1').contentWindow.document.write("Hello world");

Here's a jsFiddle, which works in all major browsers.

Note that instead of contentDocument.write you should use contentWindow.document.write: this makes it work in IE7 as well.