downloading a link with javascript in it..

[Jetus]

I am able to download this page (enclosed code), but I then want to
download a pdf file that I can view in a regular browser by clicking
on the "view" link. I don't know how to automate this next part of my
script. It seems like it uses Javascript.
The line in the page source says
href="javascript:openimagewin('JCCOGetImage.jsp?
refnum=DN2007036179');" tabindex=-1>

So, in summary, when I download this page, for each record, I would
like to initiate the "view" link.
Can anyone point me in the right direction?

When the "view" link is clicked on in IE or Firefox, it returns a pdf
file, so I should be able to download it with
urllib.urlretrieve('pdffile, 'c:\temp\pdffile')

Here is the following code I have been using
----------------------------------------------------------------
    import urllib, urllib2

    params = [
                ('booktype', 'L'),
                ('book', '930'),
                ('page', ''),
                ('hidPageName', 'S3Search'),
                ('DoItButton', 'Search'),]

    data = urllib.urlencode(params)

    f = urllib2.urlopen("http://www.landrecords.jcc.ky.gov/records/
S3DataLKUP.jsp", data)

    s = f.read()
    f.close()
    open('jcolib.html','w').write(s)