Preloaded Event Information for Calendar

Hi,

This is my first post, so I hope this is the right area...
I was looking for an easy way to add the following Text into each Calendar entry:

Time:
Location:
Details:

Searching as I have, I found no hack or other customization to do this easily. Therefore, I thought about having this text added to each "textarea" in the calendar_enterevent template.

I changed:

PHP Code:

<td><textarea name="message" rows="20" cols="$textareacols" wrap="virtual" 
tabindex="5">$message</textarea></td> 


to

PHP Code:

<td><textarea name="message" rows="20" cols="$textareacols" wrap="virtual" tabindex="5">
Time:   
Location: 
Details: $message</textarea></td> 


This worked. However, I encountered two problems. I couldn't make the text bold. In addition, if I edited the calendar entry it would add the 3 lines of text again to the text area.

Any suggestions?
Thanks!