Hi everyone, I'm in need of some help with creating a search box on a page. Essentially I need the customer to be able to type in a zip code, hit enter, and show the person matched to that zip code. I have a giant zip code list that I have in an HTML table that I created. I've managed to find code that will show the table and remove the lines that don't match the search, but I need it to be the other way around; show nothing until something is typed.

It's a pretty long html database of data. I've found the following site that has some input, but it's the reverse of what I need: https://dl.dropboxusercontent.com/u/...Javascript.htm

Any help would be appreciated. The html data table has the following:
Name - Phone Number - EMail Address -->a zip code is tied to each.