I have a sitemap configured by xml.
On one of the nodes i specify ClientSideCommand script to execute for navigation:

I do not specify NavigateUrl neither I want to.
But when i click on that node I get javascript error and then forward to correct url.
When i looked at the link being generated by the SiteMap I saw a postback call:
<code language="">javascript:if(window.top.document.location.href='Reports.aspx?forward=24'){__doPostBack(null,null);}
</code>
Last part __doPostBack() causing the javascript error.
Then I specify AutoPostBackOnSelect to False. No difference.

What is the purpose of AutoPostBackOnSelect on SiteMap item then?

Your JavaScript is performing an assignment (not a comparison) when using only 1 equals sign (=).

I suspect you want this instead:
<code>
javascript:if(window.top.document.location.href=='Reports.aspx?forward=24'){__doPostBack(null,null);}
</code>

Thanks for replying.

You did not understand. Script with errors is generated by ComponentArt control when I set ClientSideCommand on SiteMapNode.
I only set a javascript to execute.

Ah, sorry for misunderstanding!

Well, this appears to be a bug -- SiteMap appears to attempt to perform some validation/conversion on the ClientSideCommand.

You can work around this by modifying your ClientSideCommand to execute nothing to avoid the __doPostBack() call.

eg.