Question

Current window

http://www.testing.com/default.aspx

or

http://www.testing.com/default.aspx?id=1

Pop Up Window

http://www.testing.com/default.aspx?p=1

or

http://www.testing.com/default.aspx?id=1&p=1

What I have is

<a target="_blank" onclick="window.open(document.location.href + '?&p=1')">
 Print Page   
</a> 

which is a bit wrong as pop up will become

http://www.testing.com/default.aspx?id=1?&p=1

i just need a tweak.

Any idea?

Answer 1

You could do this a few ways… This is how I would make it work:

<a target="_blank" onclick="window.open(document.location.href + (document.location.href.indexOf('?') >= 0 ?  '&p=1' : '?p=1'))">
 Print Page   
</a> 

EDIT: Updated to put querystring appending in parentheses.