Please help, problem with text-field/area prop

I went throug few tutorials where the creator (of tutorial) shows and explains few codes that helps us to convert texts in textfields.

I playied a little with these codes on textarea, but it gave no effect.

My problem is that i want to convert a text in textarea component into bold. I also need a way to convert text color (if needed) into red.

Thing is that php gets data from databases and publishes it as XML-tree. Flash, in the other hand reads data between these tags and publishes in a specific component (in this case textarea component).

Please ? Is there any coder who could help me out with the code, to set bold effects on texts in textarea component.