Not sure about FormCalc...maybe one of the Adobe folks here have some ideas.If you search the help for "comments" you'll find some tips for commenting FormCalc. But it doesn't look like there's a way to do block comments.

Wrap the code block in /* ... *//*lines of code*/

There's a bunch of info on app.runtimeHighlight in this thread:http://forums.adobe.com/message/2067551#2067551You can't change the colour of the bar itself - just the highlight colour shown in fields.

I don't know. I don't think so, again if javascript gets disabled there won't be any way to do anything with javascript.I find it unlikely that someone would turn off javascript half-way through filling out a form. But, I guess you never know what someone might attempt.

If you follow the instructions from the site I posted, there's no way anybody can work with the form if javascript is disabled because there's no form displayed until they enable javascript.

I think about all you can do is the method in that blog post - and put a message in that tells people they need to enable javascript to use the form.If javascript is disabled there's not going to be any way to use javascript to do anything.

Check this blog post: http://blogs.adobe.com/livecycle/2009/02/adobe_reader_disabled_javascri.html