if statements in templates

[ForgotenDynasty]

Ok i know you can execute something if a field has a value at all with
<if condition="whatever the field it"> and if that field is filled out it will execute that action
however how can i change it depending on what that field contains

IE i had 2 radio buttons Named.
1)blah
1)whatever

now in stead of checking to see if just the field is filled out i want it to check to see what it contains
then execute based on what the value is.
like:
IF (field1=blah)
{execute this if they mark the blah button}
else
{execute this if they check any thing other then the blah button}