Server-side Scripting vs Client-Side Scripting

<i><b>Originally posted by : Mark Salamon (msalamon@worldnet.att.net)</b></i><br />Today I started reading the very clear Beginning Active Server Pages 3.0 (Wrox Press). Unfortunately, there appears to be a contradiction within the first 70 pages. It is unclear whether a <SCRIPT RUNAT=SERVER> tag in an .htm page will be treated as a server-side script by IIS 5.0 or instead as a server-side script.<br /><br />On page 66 it implies that the script wil be treated as a client-side, but on page 69 it implies server side.<br /><br />If it is treated as client-side, what happens when the browser gets a <SCRIPT RUNAT=SERVER> tag? I assume it ignores the tag, in which case neither client nor server runs the script.<br /><br />Sorry if this is a very BASIC question, but I don't want to start off my ASP studies confused.<br />