Safari PDF download button

I would like the following behaviour of the Safari PDF Download button:

On clicking the PDF download button by moving the pointer to the bottom of a pdf/ps, the file is downloaded to the Downloads/ folder. INSTEAD, I would like that to work as a "Save As" button so that I can save the pdf by a different name and in a location I prefer.

I know there is Cmd-S but I would like to use this as an opportunity to learn about Apple Scripts if that kind of idea can be used to solve this problem...

Any help would be appreciated.