Recently i have an client who wants to embeded the FormSite form in the a Drupal 6 website. But after i insert the embedded code in the node body with Full HTML or PHP Code filters. Nothing is shown. For example, if i enter the following code in the node body.

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<script type="text/javascript" src="http://www.example.com/example.js"></script>
...

The following code is shown instead

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<script type="text/javascript" src="about:blank"></script>
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To by pass the Javascript filter, we can use PHP. Rewrite your node body as follow.

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<script type="text/javascript" src="<?php print 'http://www.example.com/example.js'; ?>"></script>
...

It seems that Drupal 7 does not have this problem.

Done =)