Implementing Script - Images Popup Windows

I'm trying to do what they are saying at this link: [URL]. First, they tell me to do what is listed under the "Scripting Disabled" section:
<a href="file.htm" onclick="window.open('file.htm'); <br>
return false;" target="newWin">

Then, down in the page in the "The Perfect Pop-Up Script" section it has a large script for me to use. I'm wanting to use it at my page [URL]. I want to make each of my images pop up windows like at this site: [URL] So, are they telling me to use the html in both sections? Where would I put the html in the top section vs. the script in the lower section?

Do I have to make another webpage and just paste the script in there and then call it, like they say below: "To call the function you would use the following code:"
<a href="my-pop-up-window.htm" <br>
onclick="popUp(this.href,'console',400,200);return false;" <br>
target="_blank">This is my link</a>

I'm a bit confused where I am supposed to inserting the page name for the popup that I want to pop up vs inserting the pagename for the script page that I guess I have to make. So what are the steps that I would take to do all of this?