Setting page title

How do i dynamically set the name of the page?
In classic asp it would have been easy

<title><% =varname %></title>

I presume you use <%# %> tags (correct me if i'm wrong)

Specifically i need to Request a variable from a querystring, work some funky string manipulation and then pass it to the title of the page.

Anyone?

Thanksone solution which I've used!...

aspx file

<title runat="server" id="PageTitle">XYZ</title>

code behind

// change html title
PageTitle.InnerText = "New Page Title";

Well that was simple...
Thanks FrEaK @.CH