Getting the file path from a File browse button

Hi,
I was wondering if there is a way to extract the whole file path (not just the file name) from a file which is selected using a file browse button?
I am trying to save the file path as text in my database (I don't want to upload the file). I have linked the file browse object to a table field in the database. But when entered in the database, all I get is a series of random characters, followed by the file name. I would like to have the complete file path instead.
Tom

Hi thanks
I've placed the java script into the head of the page, but unsure as to how to change the taget url for my submit button from doSubmit('SUBMIT') to doPrepareAndSubmit('SUBMIT'). In fact I don't actually have a submit button, but a save new record (which performs an SQL INSERT into the database using the values contained in the fields on the page) or a update record buttons instead.
I'm sorry but my knowledge of java scripts is not very good either.
How do I do the follwoing?: if your submit button has not any target set its target to url:
javascript: doPrepareAndSubmit('SUBMIT')
Cheers, Tom

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