Adding a hyperlink to a fillable form text box

I am creating a form in Adobe Acrobat X Standard.  The form is for concept proposals submitted by staff.  I would like a text field where users of the form can enter a hyperlink (URL, or if possible, also a location on our network drive) so that the people assessing the form can follow these links for further information. 

I've had an extensive read of Google, these forums and experimented, but I haven't discovered a way to do this and am losing all hope!  Does anyone know if this is possible? 

Thank you