howto validate fields, add tinymce and date js

[eluser]Chris Newton[/eluser]
Add tinymce:

http://ellislab.com/forums/viewthread/65061/

Validation:
You can use the standard validation library. The "MY_Validation" library just changes the standard validation library (not for the better in my opinion)

JS Code:
You can put it in your view, or link to any js file that you'd like.

Update some fields:
Either create a 'model' to handle the work of updating based on your input, or change your controller. As long as you understand PHP, you can easily choose what data to update.