I once had a bookmark from Merriam-Webster that, upon clicking on it, would let me enter a word. Upon pressing return, the M-W page w/that word's definition would load in my browser. I was wondering if anyone was familiar with a flexible bookmark that would let me do something similar, but (I think) a tad simpler - it would simply append the number to the end of a URL and load that page. For instance, I would click on this bookmark, and an alert-like box would appear. In it I would type: 12345 Upon pressing return, the following page would load: www.DomainGoesHere.com/12345 I would not, as an end user, strictly need to modify the DomainGoesHere part of the URL - if need be, I could suggest the correct construct and not be able to edit it subsequently - but of course being able to edit it would obviously provide the advantage of flexibility.