Easiest way to protect e-mail address in content from spam

Hi there,

I'm setting up a "staff" page in a Drupal site that has the e-mail of the people. The old site (built in XHTML and CSS) uses a simple JavaScript to protect this e-mails from spam, just writting

               				<script language="JavaScript" type="text/javascript">
			   			<!--
						var string1 = "name";
						var string2 = "@";
						var string3 = "mydomain.com";
						var string4 = string1 + string2 + string3;
						var string5 = " class=normal";
						document.write("<a href=" + "mail" + "to:" + string1 +
						string2 + string3 + string5 + ">" + string4 + "</a>");
						//-->
                  				</script>

And this simple line in

<script language="JavaScript" type="text/javascript">

So I'm looking for the easiest way to write those e-mail address in Drupal preventing the spam. I have seen that it's possible to use this same system but you need to create a .js file and upload it somewhere, but I don't know where to upload it and what does that file need to content.

Can anyone explain that?
Is there an easiest way to do this in Drupal?

Thank you.