How do identify whether the window opened is a pop up or a tab?

Question

I have been facing a problem.I am able to open a window using window.open method.If I specify the height and width of the window,it opens as a pop up window.If no parameters

Answer 1

I'm not quite sure what you mean in your question but from what I understand, you might want to use the HTML target attribute:

_blank  Opens the linked document in a new window or tab
_self   Opens the linked document in the same frame as it was clicked (this is default)
_parent     Opens the linked document in the parent frame
_top    Opens the linked document in the full body of the window

framename Opens the linked document in a named frame

Source: http://www.w3schools.com/tags/att_a_target.asp