[jQuery] Problem setting html in iframe.

[jQuery] Problem setting html in iframe.


Hallo all.
I would like to set the html content of on iframe via jquery,
I have a page where is defined the iframe:
.......
<body>
        <iframe id="operativita" height="500" width="100"/>
        <div id="myDiv" class="block"></div>
    </body>
and via jquery I set the html like this:
jQuery('#operativita').html('foo');
jQuery('#myDiv').html('foo');
It works with the div but not with the iframe.
I tried several ways (e.g jQuery
('#operativita').contentDocument.innerHTML = "foo"); but none of them
work.
Any idea?
Kind regards
Massimo