How to get focus to a new popup window which doesnt have name,id or unique title.

I want to get focus or select an window which is pop-up on click to the link and the link has following tags in html

Code:

<a target="_restaurant_49" href="/impersonate/49">View Dashboard</a>

How can i get the focus on this window please help...

Thanks in Advance

selenium.SelectPopup("");
selenium.WindowFocus()

with null or empty in selectpopup method the control goes to last opened popup.

Prateek_12 wrote:
selenium.SelectPopup("");
selenium.WindowFocus()

with null or empty in selectpopup method the control goes to last opened popup.

Not working for me its not selecting the newly opened window.