automatic field inputs

I have some product pages, but after the user reads the content, there is a "click here for further information" button, as soon as teh user clicks on the button a pop up form appears, with the standard fields, Name, email, tel, and so on. However there is a field that called product that I want to be already filled in. This field will be dependant on the the product page that they're on.

this is what I've got so far, the button:

<a href="/cgi-bin/form.cgi" onclick="NewWindow(this.href,'name','595','255','no');return false";>


but I need to integrate this some how

<input type="hidden" name="Product" value="Product A">

Why dont you look at passing the parameter using the JavaScript method "location.search."

eg:
somepage.html?thisproduct

this a piece of code not used often but very useful when it is.

Could you not just include the product name in the href, like so:

You could but i cant see why thuynh7 needs to use a cgi script just to create a web form as the only dynamic part of it (based on his note) would be the inclusion of the product type?