title: Is it a bad idea to use window.open and try to communicate between windows?
body: <p>I'm working on a web page that will have a google-reader type scrolling list of content, and I'd like to open that content when it's clicked on in a new window.  The problem is that I'd really like to be able to update the scrolling list from one of the newly opened windows.  </p>
  
  <p>For example; I'm looking at a list of products for sale on my web page, and a user clicks one of the products, opening a new page displaying details of the product they clicked on.  The new page also includes links to various assortments of products (lets say teacups) - when the user clicks on 'show me some teacups', I'd like the original list of products to be redirected to the page showing all the teacups and focus to be transferred to this window (leaving the product-specific page open in another window/tab)</p>
  
  <p>Is this a horrible idea?  Will I have problems with popup blockers or security policies in newer browsers?  Is this generally considered a bad design pattern?</p>
  
  <p>Thanks for any input.</p>