Pop-up box

[Mutley]

How can I make say, 'test.php' pop-up in a small box on the center of the screen from a link? Is it an "onclick" command?

 

I've seen ones that fade out the whole page around the box too, I guess this is a DIV?

[redbullmarky]

for the former part, javascript can be used to open what is effectively a new browser window. you can also achieve it using a DIV and an iframe, which generally leads to much tidier results, albeit a little trickier.

 

for the latter part of your question, the window in question is a 'modal' which is nothing more than a DIV (rather than an actual window) with a semi-transparent background to cover the main pagebody. as with the first, an onclick can trigger this. Here's an example using images:

http://www.huddletogether.com/projects/lightbox/

 

hope that helps