*special* form

Hello, I need a form that either records the referring URL (previous page) or something along those lines - so that the form would submit with the previous page information. I'll explain the project that I am working on and perhaps you can better understand what this form needs to do: ------------------------------------------------------- I am currently building a website for a travel company. The company has already bought a booking engine but also wants an area where they can post their in-house products. I am building these pages MYSELF with HTML only for SEO purposes. NOW, when a customer wants to receive additional info on an in-house package, there is a "reserve now" button which takes them to a form page. I do NOT want to have a separate form for every single in-house package they have SO I need a form that will function as the sole / central reservation form. Only problem is, a regular form will not know which package they want to "Reserve". Basically, all I need from you is a form that will record the referring URL (i.e. the previous page they were on) so that when the form submits, we know which package they are reserving!!! Simple enough right? If you can do this, or have a script already, please get back to me. This project is urgent! Thanks