[Javascript] Handling child window visibility...

[Shawn Milo]

I have a form which has a target attribute.  This way, 
when someone clicks the submit button on a page which
 contains a Java graph applet, a new window opens with 
a table of statistics based upon the data in the chart.

If the window is already open, it will simply refresh. 
 This is fine, but my concern is that if the new window
 is in the background, users will fail to realize this, click
 repeatedly, then call me for help.

I have thought of two options.  The first is (if possible)
 to check for the existance of the window during onclick
 and close it.  The second is to put JavaScript in the
 onload of the new window to bring it to the top.

Are either of these possible, and are either
 of these recommended?  Any other solutions?

I am not creating this window with JavaScript by
 using window.open() or anything -- 
just a normal HTML form with target="statWindow"
 in the declaration.

Thanks,
Shawn