Check what web addresses are opened in browser
<p>is it possible to get the addresses of web pages being opened in web browser using javascript?</p>

<p>Lets say that before performing some operation i need to check whether specific page is opened in the browser. Javascript's window.open() seems wrong to me, as it opens the window even if page was loaded before.</p>

<p>EDIT:
i need to check if specific page is loaded in any tab of the browser, and if it is, i need to perform some operations on this page</p>
