Template Parser: Dont display var name if blank

[eluser]Kriesi[/eluser]
Hey everyone, already did a search but couldnt find a solution to my problem:

the title basically says what I need:

I am using the template parser to display my views. since the data array that I pass to the view is populated by a database query and differs with each query I dont always get the same set of variables.

What I want to do is:

Write: {my_var} to the template

if $data[$my_var] has a value exchange {my_var} with this value. (normal behaviour)
if $data[$my_var] is not set just remove the {my_var} and dont display it...

any easy ways of pulling this of?

Thanks in advance
Kriesi