New Custom bbCode button with simple function

I'd like to add a new button, so that whenever one clicks on it, it shows the following code:

Code:

[center][size=1][spoiler=<img src="IMAGEM" />]<font size="2">

And when one clicks on it again (closing the tag) it shows as follows:

Code:

</font>[/spoiler][/size][/center]

I'd also like to know if there is a way that I can choose the group of colors that will show at the presets in the bbcode formatting bar. My forum is an RPG, an there are four "clans" that have four different colors (hexadecimal) that are very frequently used throughout the forum and that'd be really cool if we could just have them one click away.

Obrigado! Thanks!

See if this helps - http://www.malware-site.www/t23-how-to-create-a-new-text-editor-button

It's helpful, but it's now exactally what I was looking for... it doesn't add the button, and the drop down list won't be together with the other buttons in the editing box, as I see.

That's right, I'm sorry. So, Solved it is!