title: How do I inject html into the head section of an aspx page when using master page in VS2005
body: <p>To be more specific, I'm using a master page and I want to insert rel='canonical' in some pages (for example when I'm using paging in a certain .aspx page).</p>
  
  <p>I need to inject it in the head section of the master page:
      </p>
  
  <p>This was a step in the right direction:
  <a href="https://stackoverflow.com/questions/568717/asp-net-masterpages-how-to-insert-markup-in-the-head-section-inside-the-aspx">ASP.NET masterpages: how to insert markup in the head section inside the aspx?</a>
  but I need to have more control, to inject only when I have page=2 in the url. </p>
  
  <p>Thanks</p>