The page that I wrote about the lotto picker script that selects a specified number of unique numbers from a larger set of numbers was mainly intended to illustrate how a few array methods can be used in combination to produce a rather involved effect in very few statements. The form at the bottom of the page was just intended to demonstrate how the code could be used. So of course you all want copies of the form to put on your own site.
The other code that you need is the HTML for the lotto picker form itself. Simply copy the following code into your page where you want the lotto picker form to appear.