Hello, I am trying to build a custom block that basically turns my "Sidebar" section into an area for updates and things like that. Basically when you add the block it asks for the first update to get the ball rolling. Then, when you edit the block I either would like for it to give a button to click to add a new update or allow you to edit the old updates.

What I am having trouble with is if I put in a button and give it any onClick behavior it submits the entire form. I know there is a way to over-ride this but I guess I'm missing it?

Also, say I just decide to automatically include a new field to add a new update without the need to press a button to get to that... how do I make the edit window understand that when I press update that it needs to check that new field and if something is there to insert it as a new row in the table?

I am having major trouble finding anything out there about building custom blocks. The tutorial on this page was a good start for doing exactly what the example showed and maybe changing the names or something in it but not much more. Where can I find lists of things like what more can I do by adding $form->???? or what other options have I got? The API documentation is rather confusing too, maybe its in there?

Thanks!