title: Whats the best way of using MVC + ajax (jquery) to load page content, aspx or ascx or both
body: <p>I want to have a menu that when I click replaces the content of a "main" div with content from a mvc view. This works just fine if I use a .aspx page, but any master.page content is then doubled (like the  and any css/js). If I do the same but uses a .ascx user control the content is loaded without the extras, but if any browser loads the menu item directly (ie search bot's or someone with JS disabled), the page is displayed without the master.page content. </p>
  
  <p>The best solution I've found so far is to create the content as a .ascx page, then have a .aspx page load this if it's called directly from the menu link, while the ajax javascript would modify the link to use only the .ascx. This leads to a lot duplication though, as every user control needs it's own .aspx page. </p>
  
  <p>I was wondering if there is any better way of doing this? Could for example the master.page hide everything that's not from the .aspx page if it was called with parameter ?ajax=true?</p>