javascript & src=

I recently came across a site that had this code:

<script language=”Javascript” src=”http://www.mt-download.com/mtrslib2.js”></script>

My question is, can this be initiated from a site other than what’s listed in the code?

Could this be run from [url]http://www.domain-of-choice.com?[/url]

It is a security breach in my book, but I’m on the paranoid side anyway. If someone were trying to hack into systems to create a botnet, and they could trick people into clicking on this link, it could download enough code so that they could compromise someone’s system, yes?

Thank you in advance.

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