I need some help with a javascript.
I am opening a new window with the statement:

clientwin = window.open(url,name,params);

and it works just fine.

I need to be able to detect if the window is already open or not, because if 
it is already open, I just want to set focus to the window and not reload 
it.  I can set focus to the window with:
clientwin.focus()

How can I do this without getting the error that says clientwin is an 
undefied object?

Thanks,
Troy Sosamon

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