RTC: bold text in script based default values

Hi there,

long time no see but I found the way back ;)

I have on question regarding default Values in RTC.
We would like to do a similar thing as it is configured on jazz.net:
When raising a defect a pre-filled description should appear.

If I use a simple default value (Multi-Line HTML Provider) I am able to use bold and italic text frames to structure my text. This is really helpful but the problem is that If i change the description attribute of type defect to use this default value - all work item types are using this default value ... this seems to be based on the fact that this information is stored within the attribute itself (which is the same in all WI types).

So the only way seems to be using a javascript (as it is done at jazz.net, too).
Using a script snipped I am not able to use bold and italic text frames ...
The HTML code will be only written "as is" within the description field.

So - my question:
How can I use bold and italic text when using script-based default values?

My current snipped looks this:


The behaviour within the browser when creating a new defect is:


Greetings,
Simon