the digital company
For our upcoming 
web application CashCtrl we use HelpNDoc to write the manual. HelpNDoc lets you write documentation like a word processor (almost like using Microsoft Word) and then generate various outputs from it, such as HTML, PDF, CHM, Word, EPub and even the Kindle eBook format.
This is a blog post about JPA (Java Persistence API) in Java. If you're using JPA, in some cases you might want to figure out which properties have changed in an entity object before you persist it. In my case, some properties shouldn't change anymore after a certain event, and I had to find out if those were changed. Instead of iterating through each single property and then compare the old value to the new one, there is a better solution:
ExtJS 4 is currently 
missing a combobox with icons in it. Where each item can simply define an iconCls to display an icon left of the item text in the list as well as in the combo field itself.
A solution can be found on the Sencha forum:
http://www.sencha.com/forum/showthread.php?131184-IconCombo
Check out the comment of user hschaefer123 on July 20, 2012 1:36pm, that's the solution that worked for me in ExtJS 4.1.3.
Here is the code (slightly modified) in case the forum thread disappears one day:
After 
months of development, we are proud to announce "CashCtrl" - a new intuitive and efficient online accounting software.
CashCtrl uses double-entry bookkeeping. It's completely online (hosted in Switzerland), which means you can access it from wherever you are. You can also do your invoicing, manage your contacts, your inventory, and print real-time reports.
We are now starting the beta phase of CashCtrl, where you can sign up for free within seconds.
Sign up here: www.cashctrl.com
Auf deutsch:
Genug mit dem Winterblues. Genug Kälte und neblige, dunkle Morgen. Ich will wieder Radfahren können, ohne einen Schal und drei Schichten Veloklamotten anziehen zu müssen. Natürlich haben Schnee und Kälte ihren Reiz, aber jetzt reichts - Winter, kalter Freund, hau ab!