I NEED A GURU...How do I add editable hyperlink in Adobe Reader?

Hi - I have a perplexing problem that I desperately need to find a solution to fast........

I have created an interactive PDF in LiveCycle that you can amend the text and image fields in the free Adobe Reader.  My problem is that I need whoever uses the form to be able to alter one of the text fields and then attach a hyperlink on to the text.

It is the hyperlink part that I cannot find the answer to.

Is there a way of creating a field in LiveCycle that will allow someone to attach or edit a hyperlink?  This step needs to be done in the Adobe Free Reader.

Any help or suggestions would be greatly appreciated.

Thanks in advance

Wendy-G